Tuesday, April 23, 2013

Was Samsung caught fighting dirty in war against Apple?

Samsung

Samsung recently admitted fault ? to an extent ? after being accused of?false?advertising when a group of paid bloggers flooded the web with posts that attacked HTC and its devices. Samsung issued a statement saying that the posts were the result of a misunderstanding, but that might not mean these aggressive tactics are being cast aside. CNNMoney?s Phillip Elmer-DeWitt on Saturday published an article discussing a ?somewhat paranoid theory? that Samsung has quietly declared war on Apple after being called an iPhone copycat. The response to his article, as it turns out, suggests that the theory might not be so paranoid after all.

[More from BGR: iPhone sales projections are now so low it?s ridiculous]

Elmer-DeWitt?s initial post covered a theory being passed around among Apple investors that accuses Samsung of launching a multi-pronged attack against Apple using everything from anti-iPhone TV commercials to ?paying students and other heavy users of social media to post anonymous messages talking up the virtues of Samsung?s products and spreading fear, uncertainty and doubt about Apple and other competitors.?

[More from BGR: The cost of iPhone quality control: $1.2B in faulty phones returned by Apple in 2013 alone]

Seems a bit paranoid, no? But then,?Elmer-DeWitt?s article received more than 450 comments and, within the span of a few hours, more than a thousand votes were cast on the site?s commenting system up-voting anything positive about Samsung or negative about Apple (and about Elmer-DeWitt), and down-voting anything negative about Samsung.

A follow-up piece from the author on Sunday discussing the response to his first post was fairly damning:

The post drew more that the usual number of comments. Twenty six hours later, we?re up to 343 messages and counting. Some readers supported the thesis. Some ridiculed it. Some attacked Apple. Some attacked me.

That kind of thing comes with the territory, although not usually in such numbers or with such vehemence. But what happened at about 2 a.m. EST ? Sunday afternoon in Seoul, South Korea ? was new.

In the space of a few hours, more than a thousand votes were cast on the DISQUS feedback system, voting down any comment remotely anti-Samsung and voting up anything ? no matter how inane, in-artful or wrong ? that disparaged Apple, the thesis, or me.

This follow-up post had 373 comments as of the time of this writing, many of which sing Samsung various praises and accuse?Elmer-DeWitt of spreading pro-Apple?propaganda.

This article was originally published on BGR.com

Source: http://news.yahoo.com/samsung-caught-fighting-dirty-war-against-apple-145050429.html

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Monday, April 22, 2013

Josh Thomson and Yoel Romero score Knockout of the Night bonuses for UFC on Fox 7

UFC on Fox 7 was one of the best cards of the year. Of the 12 fights on the card, eight ended with a knockout or technical knockout. This made the decision for Knockout of the Night bonuses even more difficult for the UFC.

Since there were no submissions, they gave out two $50,000 knockout bonuses. One went Josh Thomson, who delivered the first knockout against Nate Diaz. It was Thomson's first fight in the UFC since 2004. He fought in Strikeforce for several years, and returned to the promotion after the parent company who owns the UFC bought and then folded Strikeforce.

The other $50,000 bonus went to Yoel Romero, who was making his UFC debut after fights in Strikeforce and a long career as an Olympic-level wrestler. In the first fight on the card, Romero knocked out Clifford Starks with a flying knee.

Fight of the Night bonuses of $50,000 each went to Matt Brown and Jordan Mein. Though their fight lasted just six minutes, every second of the bout was memorable. Brown started strong as he aggressively put Mein on his heels, but Mein appeared to wobble Brown with body shots. One minute into the second round, Brown notched the TKO win.

Other popular content on Yahoo! Sports:
? Images from the manhunt, capture of Boston bombing suspect
? Texas A&M quarterback Johnny Manziel is ready for his encore
? Ball Don't Lie Power Rankings: First-round NBA playoff matchups
? David Ortiz punctuates Red Sox pregame with strong statement

Source: http://sports.yahoo.com/blogs/mma-cagewriter/josh-thomson-yoel-romero-score-knockout-night-bonuses-034020190--mma.html

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Nokia granted preliminary injunction against HTC in the Netherlands over high-amplitude mics

Nokia granted injunction against HTC in the Netherlands over highamplitude mics

Don't worry, this time it's not a patent issue. However, it is more bad news for HTC's oft-delayed One. Nokia has been granted an injunction by the Amsterdam district court, concerning the technology used by HTC in its current flagship. You might recall the pair of high-amplitude mics housed within One's aluminum body, but these are apparently the same dual-membrane tech that Nokia's used in its recent Lumia 720, seen above.

The Finnish company recently applied for a preliminary injunction, pointing the finger at ST Microelectronics, which is responsible for manufacturing the mic component for both Nokia and HTC. According to our source, the issue is likely to be a breach of an NDA between Nokia and ST Electronics as the phone maker asserts that the "microphone components [were] invented by and manufactured exclusively for Nokia." We're still hearing the details and will update as we hear more. We've also reached out to HTC for comment. For now, you can read up on Nokia's statement following the court's decision after the break.

Update: HTC has offered up an official statement in response to the injunction: "HTC is disappointed in the decision. We are considering whether it will have any impact on our business and we will explore alternative solutions immediately."

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Source: http://www.engadget.com/2013/04/22/nokia-preliminary-injunction-against-htc-one-mic/?utm_medium=feed&utm_source=Feed_Classic&utm_campaign=Engadget

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Boston bomb suspect hospitalized under heavy guard

BOSTON (AP) ? Boston Marathon bombing suspect Dzhokhar Tsarnaev lay hospitalized in serious condition under heavy guard Saturday ? apparently in no shape to be interrogated ? as investigators tried to establish the motive for the deadly attack and the scope of the plot.

People across the Boston area breathed easier the morning after Tsarnaev, 19, was pulled, wounded and bloody, from a tarp-covered boat in a Watertown backyard. The capture came at the end of a tense day that began with his 26-year-old brother, Tamerlan, dying in a gunbattle with police.

There was no immediate word on when Tsarnaev might be charged and what those charges would be. The twin bombings killed three people and wounded more than 180.

The most serious charge available to federal prosecutors would be the use of a weapon of mass destruction to kill people, which carries a possible death sentence. Massachusetts does not have the death penalty.

President Barack Obama said there are many unanswered questions about the bombing, including whether the Tsarnaev brothers ? ethnic Chechens from southern Russia who had been in the U.S. for about a decade and lived in the Boston area ? had help from others. The president urged people not to rush judgment about their motivations.

U.S. officials said an elite interrogation team would question the Massachusetts college student without reading him his Miranda rights, something that is allowed on a limited basis when the public may be in immediate danger, such as instances in which bombs are planted and ready to go off.

The American Civil Liberties Union expressed concern about that possibility. Executive Director Anthony Romero said the legal exception applies only when there is a continued threat to public safety and is "not an open-ended exception" to the Miranda rule, which guarantees the right to remain silent and the right to an attorney.

The federal public defender's office in Massachusetts said it has agreed to represent Tsarnaev once he is charged. Miriam Conrad, public defender for Massachusetts, said he should have a lawyer appointed as soon as possible because there are "serious issues regarding possible interrogation."

Massachusetts Gov. Deval Patrick said Saturday afternoon that Tsarnaev was in serious but stable condition and was probably unable to communicate. Tsarnaev was at Boston's Beth Israel Deaconess Medical Center, where 11 victims of the bombing were still being treated.

"I, and I think all of the law enforcement officials, are hoping for a host of reasons the suspect survives," the governor said after a ceremony at Fenway Park to honor the victims and survivors of the attack. "We have a million questions, and those questions need to be answered."

The all-day manhunt Friday brought the Boston area to a near standstill and put people on edge across the metropolitan area.

The break came around nightfall when a homeowner in Watertown saw blood on his boat, pulled back the tarp and saw a bloody Dzhokhar Tsarnaev hiding inside, police said. After an exchange of gunfire, he was seized and taken away in an ambulance.

Raucous celebrations erupted in and around Boston, with chants of "USA! USA!" Residents flooded the streets in relief four days after the two pressure-cooker bombs packed with nails and other shrapnel went off.

Michael Spellman said he bought tickets to Saturday's Red Sox game at Fenway Park to help send a message to the bombers.

"They're not going to stop us from doing things we love to do," he said, sitting a few rows behind home plate. "We're not going to live in fear."

During the long night of violence leading up to the capture, the Tsarnaev brothers killed an MIT police officer, severely wounded another lawman and took part in a furious shootout and car chase in which they hurled explosives at police from a large homemade arsenal, authorities said.

Chechnya, where the Tsarnaev family has roots, has been the scene of two wars between Russian forces and separatists since 1994. That spawned an Islamic insurgency that has carried out deadly bombings in Russia and the region, although not in the West.

Investigators have not offered a motive for the Boston attack. But in interviews with officials and those who knew the Tsarnaevs, a picture has emerged of the older one as someone embittered toward the U.S., increasingly vehement in his Muslim faith and influential over his younger brother.

The Russian FSB intelligence service told the FBI in 2011 about information that Tamerlan Tsarnaev was a follower of radical Islam, two law enforcement officials said Saturday.

According to an FBI news release, a foreign government said that Tamerlan Tsarnaev appeared to be strong believer and that he had changed drastically since 2010 as he prepared to leave the U.S. for travel to the Russian region to join unspecified underground groups.

The FBI did not name the foreign government, but the two officials said it was Russia. The officials spoke on condition of anonymity because they were not authorized to talk about the matter publicly.

The FBI said that in response, it interviewed Tamerlan Tsarnaev and relatives, and did not find any domestic or foreign terrorism activity. The bureau said it looked into such things as his telephone and online activity, his travels and his associations with others.

An uncle of the Tsarnaev brothers said he had a falling-out with Tamerlan over the man's increased commitment to Islam.

Ruslan Tsarni of Montgomery Village, Md., said Tamerlan told him in a 2009 phone conversation that he had chosen "God's business" over work or school. Tsarni said he then contacted a family friend who told him Tsarnaev had been influenced by a recent convert to Islam.

Tsarni said his relationship with his nephew ended after that call.

As for Dzhokhar Tsarnaev, "he's been absolutely wasted by his older brother. I mean, he used him. He used him for whatever he's done," Tsarni said.

Albrecht Ammon, a downstairs-apartment neighbor of Tamerlan Tsarnaev in Cambridge, said in an interview that the older brother had strong political views about the United States. Ammon quoted Tsarnaev as saying that the U.S. uses the Bible as "an excuse for invading other countries."

Tamerlan Tsarnaev studied accounting as a part-time student at Bunker Hill Community College in Boston for three semesters from 2006 to 2008, the school said. He was married with a young daughter. Dzhokhar Tsarnaev was a student at the University of Massachusetts Dartmouth.

As of Saturday, more than 50 victims of the bombing remained hospitalized, three in critical condition.

___

Associated Press writers Denise Lavoie and Steve Peoples in Boston; Colleen Long in New York; Pete Yost in Washington; and Eric Tucker in Montgomery Village, Md., and AP Sports Writer Jimmy Golen in Boston contributed to this report.

Source: http://news.yahoo.com/boston-bomb-suspect-hospitalized-under-heavy-guard-181337320.html

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Personal development tips you should consider ? The Punch ...

Personal development tips you should consider

Human resource managers say it is important for individuals to continuously work towards self-improvement. SIMON EJEMBI writes on ways that can be achieved

?No matter how good or effective you are at work or in life generally, experts say it is important that you strive to improve yourself.

According to them, this will make you more productive and successful ? that is if you are already productive. If you are not, then self-improvement will increase your chances of turning the table around. This is because it would help you correct the flaws or weaknesses that have hindered your growth and equip you for success.

Some of the tips suggested by experts are highlighted below.

?Be disciplined

According to experts, without discipline, it is difficult for you to succeed at work, home and in terms of personal finance management. They stress that for you to successfully execute any plan or complete a task, discipline is required.

By disciplining yourself, you will be able to overcome such bad habits as procrastination and the tendency to blame others for failure or problems.

Experts warn that people, who never accept blame or reality, are unlikely to take needed steps to correct their flaws or develop themselves.

They say one of the first things people who want to develop themselves should do is to become disciplined.

?Set goals

To achieve personal development, experts say it is important to have a target in life. Some say once those set goals are achieved, it is okay to set new goals. This, according to them, is because without set goals or targets, you are likely to relax and become comfortable with the way things are; and life may just pass you by.

They explain that in certain goals, you have to look at your present circumstance and decide the changes you want to make.

Are you always late for work? Do you always fail to complete tasks?? These are examples of things you may consider in setting goals. Of course, things you want to change can be more serious, depending on your circumstance or challenges.

In certain goals, it is important that you think about the plan you have for your life ? career, family, etc. ? and ensure that the set goals are in tune with them. That way, you won?t spend time working on goals that will not add anything to you or your plan in the long run.

?Learn to think positively

In his book, ?The Power of Positive Thinking?, Norman Vincent Pearle stresses that positive thinking is an attitude that anticipates happiness, health and successful results.

Indeed, experts agree that positive thinking is important for people who are interested in self-development. They explain that bringing out the best in people helps to avoid negative talk and traits such as the tendency to blame others for everything that goes wrong.

According to experts, there is also the need to control your thinking. They say by controlling what you think, you stand a better chance of controlling your life.

This will require you to organise your thoughts. And one thing that may be handy in this regard is meditation, which they say can clear your mind and remove negative thoughts.

?Start right away

Having thought about what you want to achieve or change and set goals to achieve that, experts say it is important that you get a good start.

They stress that once you have your plan, you should start implementing it right away as procrastination may see your circumstance worsened. So, the advice is that you should not leave what you can do today for tomorrow.

It will also be helpful that you get up early every day, as this will leave you with more time to complete tasks, than when you wake up late every morning.

?Break tasks down

As you strive to achieve your personal development targets and as you go about your activities every day, there are many tasks that you will be required to complete. Many people get overwhelmed by the amount of tasks they have to complete on a daily basis. Experts say this is sometimes because they fail to break these tasks down into smaller tasks and in such a way that they could easily handle them. To avoid that, organise the tasks you are given and come up with a schedule for all you have to do.

?Increase your knowledge

They say knowledge is power. Experts say increasing your knowledge is key if you want to achieve personal development.

Apart from getting additional training in various areas where you have noticed that you are weak, they stress that it is important for you to read relevant literature. They say by reading about the mistakes of others, you can speed up your personal development process.

Instead of learning the hard way ? through experience, you are advised to learn from others. And while finding a mentor is great, you can learn about the mistakes of others by reading widely.

?Embrace change

Experts say it is okay to be conservative at times, but in a world that is changing at a rapid pace, people that welcome change are better off than those who are resistant to it. While they admit that change is difficult to accept, they warn that there is no escaping it, hence the earlier you learn to embrace it the better. Imagine the difficulties an individual who was refused to use mobile phones in today?s world will face. While that may be hard to imagine for you, if you examine some of the changes, which you have refused to embrace, you may find that they have a similar effect.

?Get organised

How organised are you? Do you plan your day and activities ahead or do you do things at the last moment? By getting organised or more organised, you are likely to find it easier to complete your tasks and thereby become more productive. This is because you will be able to focus on important tasks. And because you have planned in advance, you will find it easier to accomplish more, having thought of likely obstacles and ways to tackle them before they pop up.

?Evaluate

Once you have decided to develop yourself and started taking steps towards that, it is important that you evaluate the progress you have made from time to time. Experts say once you start wanting to create value regularly, then it means you are improving yourself.

Other things that will be helpful to you in your quest to develop yourself include regular exercise, dealing with the right kind of people or having good friends, and keeping bad habits in check, among others.

It is important to note that personal development basically involves everything that can transform your life in a positive way. This means there are many other tips that will be helpful.

While it is impossible for all of them to be listed here by being willing to embrace change, reading a lot, being willing to embrace change and ensuring that you are disciplined, you stand a very good chance of achieving your personal development goals.

More Stories in AM Business

Source: http://www.punchng.com/am-business/personal-development-tips-you-should-consider/

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Sunday, April 21, 2013

Parents of Boston suspect describe his Russia trip

FILE - This combination of undated file photos shows Tamerlan Tsarnaev, 26, left, and Dzhokhar Tsarnaev, 19. The FBI says the two brothers are the suspects in the Boston Marathon bombing, and are also responsible for killing an MIT police officer, critically injuring a transit officer in a firefight and throwing explosive devices at police during a getaway attempt in a long night of violence that left Tamerlan dead and Dzhokhar captured, late Friday, April 19, 2013. The ethnic Chechen brothers lived in Dagestan, which borders the Chechnya region in southern Russia. They lived near Boston and had been in the U.S. for about a decade, one of their uncles reported said. Since Monday, Boston has experienced five days of fear, beginning with the marathon bombing attack, an intense manhunt and much uncertainty ending in the death of one suspect and the capture of the other. (AP Photo/The Lowell Sun & Robin Young, File)

FILE - This combination of undated file photos shows Tamerlan Tsarnaev, 26, left, and Dzhokhar Tsarnaev, 19. The FBI says the two brothers are the suspects in the Boston Marathon bombing, and are also responsible for killing an MIT police officer, critically injuring a transit officer in a firefight and throwing explosive devices at police during a getaway attempt in a long night of violence that left Tamerlan dead and Dzhokhar captured, late Friday, April 19, 2013. The ethnic Chechen brothers lived in Dagestan, which borders the Chechnya region in southern Russia. They lived near Boston and had been in the U.S. for about a decade, one of their uncles reported said. Since Monday, Boston has experienced five days of fear, beginning with the marathon bombing attack, an intense manhunt and much uncertainty ending in the death of one suspect and the capture of the other. (AP Photo/The Lowell Sun & Robin Young, File)

This June 2012 booking photo released by the Natick, Mass., police shows Zubeidat K. Tsarnaeva, mother of Tamerlan and Dzhokhar Tsarnaev, the two men who set off bombs near the Boston Marathon finish line Monday, April 15, 2013 in Boston. Zubeidat Tsarnaeva was arrested in June 2012 on a shoplifting charge at a Lord & Taylor store in Natick. (AP Photo/Natick Police Department)

The father of the Boston bomb suspects, Anzor Tsaraev, speaks to the media at his home in Makhachkala, the capital of Dagestan, a predominantly Muslim republic in southern Russia, Friday, April 19, 2013. The two ethnic Chechen brothers, Tamerlan Tsarnaev and Dzhokhar Tsarnaev, turned suspects in US marathon bombing, one dead, one still alive and at large on Friday, came from Dagestan, a Russian republic bordering the province of Chechnya. (AP Photo/Kurban Labazanov)

MAKHACHKALA, Russia (AP) ? The parents of Tamerlan Tsarnaev insisted on Sunday that he came to Dagestan and Chechnya last year to visit relatives and had nothing to do with the militants operating in this volatile part of Russia. But the Boston bombing suspect could not have been immune to the attacks that savaged the region during his six-month stay.

Tsarnaev , 26, and his 19-year-old brother, Dzhokhar Tsarnaev, are accused of setting off the two bombs near the finish line of the Boston Marathon on April 15 that killed three people and wounding more than 180 others.

Three days later, investigators say they killed a university police officer, carjacked a man and led police on a chase that resulted in a shootout that left Tamerlan Tsarnaev dead. His younger brother escaped, but was captured the next day, alive but badly wounded.

When the two ethnic Chechen suspects were identified, the FBI said it reviewed its records and found that in early 2011, a foreign government ? which law enforcement officials confirmed was Russia ? had asked for information about Tamerlan Tsarnaev. The FBI said it was told that Tsarnaev was a "follower of radical Islam" and was preparing to travel to this foreign country to join unspecified underground groups.

The FBI said that it responded by interviewing Tsarnaev and family members, but found no terrorism activity.

No evidence has emerged since to link Tsarnaev to militant groups in Russia's Caucasus. And on Sunday the Caucasus Emirate, which Russia and the U.S. consider a terrorist organization, denied involvement in the Boston attack.

But a trip Tsarnaev made back to Russia in January, 2012, has raised questions.

His father said his son stayed with him in Makhachkala, the capital of Dagestan, where the family lived briefly before moving to the United States a decade ago. The father had only recently returned.

"He was here, with me in Makhachkala," Anzor Tsarnaev told The Associated Press in a telephone interview. "He slept until 3 p.m., and you know, I would ask him: 'Have you come here to sleep?' He used to go visiting, here and there. He would go to eat somewhere. Then he would come back and go to bed."

He said his son went to the mosque for prayers, but would not have come under the influence of radical imams, who he said stay up in the mountain villages.

A woman who works in a small shop opposite Tsarnaev's apartment building said she only saw his son during the course of one month last summer. She described him as a dandy.

"He dressed in a very refined way," said Madina Abdullaeva. "His boots were the same color as his clothes. They were summer boots, light, with little holes punched in the leather."

Anzor Tsarnaev said they traveled together to neighboring Chechnya. "He went with me twice, to see my uncles and aunts. I have lots of them," the father said.

He said they also visited one of his daughters, who lives in the Chechen town of Urus-Martan with her husband. His son-in-law's brothers all work in the police force under Chechen leader Ramzan Kadyrov, he said.

Moscow has given Kadyrov a free hand to stabilize Chechnya following two wars between federal troops and Chechen separatists beginning in 1994, and his feared police and security forces have been accused of rampant rights abuses.

What began in Chechnya as a fight for independence has morphed into an Islamic insurgency that has spread throughout Russia's Caucasus, with the worst of the violence now in Dagestan.

In February, 2012, shortly after Tamerlan Tsarnaev's arrival in Dagestan, a four-day operation to wipe out several militant bands in Chechnya and Dagestan left 17 police and at least 20 militants dead. In May, two car bombs shook Makhachkala, killing at least 13 people and wounding about 130 more. Other bombings and shootings targeting police and other officials took place nearly daily.

The Caucasus Emirate said Sunday that its mujahedin are not fighting with the United States. "We are at war with Russia, which is not only responsible for the occupation of the Caucasus, but also for heinous crimes against Muslims," it said in a statement on the Kavkaz Center website.

The group suggested that Russia's secret services would have had a greater interest in carrying out the attack in Boston.

Despite the violence in Dagestan, Anzor Tsarnaev said Sunday that his son did not want to leave and had thoughts on how he could go into business. But the father said he encouraged him to go back to the United States and try to get citizenship. Tamerlan Tsarnaev returned to the U.S. in July.

His mother said that he was questioned upon arrival at New York's airport.

"And he told me on the phone, 'imagine, Mama, they were asking me such interesting questions as if I were some strange and scary man: Where did you go? What did you do there?,' " Zubeidat Tsarnaeva recalled her son telling her at the time.

Both parents insist that the FBI continued to monitor Tamerlan Tsarnaev and that both of their sons were set up.

Their mother went so far on Sunday to claim that the FBI had contacted her elder son after the deadly bombs exploded at the marathon. If true it would be the first indication that the FBI considered him a suspect before Boston descended into violence on Thursday.

At FBI headquarters in Washington, spokesman Michael Kortan stood by the bureau's public statement of two days ago in which the bureau described a 2011 FBI interview of Tamerlan Tsarnaev. Kortan said the 2011 interview was the only FBI contact with Tamerlan Tsarnaev. The FBI statement from two days ago says that the FBI did not learn of the identity of Tamerlan and his brother until Friday after the gun battle in which Tamerlan was killed.

The mother's claim could not be independently confirmed, and she has made statements in the past that appeared to show a lack of full understanding of what occurred in Boston.

Investigators released photos and video of the two Tsarnaev brothers on Thursday afternoon, but at that point their identities were not known. By late that night Tamerlan Tsarnaev was dead.

Tsarnaeva said her elder son told her by telephone that the FBI had called to inform him that they considered him a suspect and he should come in for questioning.

She said her son refused. "I told them, what do you suspect me of?" Tsarnaeva quoted her son as saying. "This is your problem and if you need me you should come to where I am."

He then told her he was going to drive his younger brother to the university, she said, speaking by telephone from Chechnya. Tsarnaeva claimed that her son later called his wife to tell her they were being chased and fired upon.

___

Associated Press writer Lynn Berry contributed from Moscow.

Associated Press

Source: http://hosted2.ap.org/APDEFAULT/cae69a7523db45408eeb2b3a98c0c9c5/Article_2013-04-21-EU-Russia-Boston-Suspects/id-41f185ce24f44e4e9eb6e313a08d1f54

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Revolutionary new device joins world of smart electronics: New flexible, transparent, photosensitive device

Apr. 19, 2013 ? Smart electronics are taking the world by storm. From techno-textiles to transparent electronic displays, the world of intelligent technology is growing fast and a revolutionary new device has just been added to its ranks. Researchers at the University of Exeter have developed a new photoelectric device that is both flexible and transparent. The device, described in a paper in the journal ACS Nano, converts light into electrical signals by exploiting the unique properties of the recently discovered materials graphene and graphExeter. GraphExeter is the best known room temperature transparent conductor and graphene is the thinnest conductive material.

At just a few atoms thick, the newly developed photoelectric device is ultra-lightweight. This, along with the flexibility of its constituent graphene materials, makes it perfect for incorporating into clothing. Such devices could be used to develop photovoltaic textiles enabling clothes to act as solar panels and charge mobile phones while they are being worn.

Photosensitive materials and devices such as the one developed at Exeter can, in the future, also be used for intelligent windows that are able to harvest electricity and display images while remaining transparent. Smart materials have almost unlimited potential applications from integral iPods and keyboards in clothing to electronic displays on glasses and goggles.

Saverio Russo, Professor of Physics at the University of Exeter said: "This new flexible and transparent photosensitive device uses graphene and graphExeter to convert light into electrical signals with efficiency comparable to that found in opaque devices based on graphene and metals.

"We are only just starting to explore the interfaces between different materials at very small scales and, as this research shows, we are revealing unique properties that we never knew existed. Who knows what surprises are just around the corner."

Metallic nanostructures in smart materials typically cause a haze that prevents them from being truly transparent. The photosensitive device developed at Exeter contains no metals and is therefore completely transparent but, as it can detect light from across the whole visible light spectrum, it is as efficient at sensing light as other recently developed opaque photoelectric devices.

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Story Source:

The above story is reprinted from materials provided by University of Exeter, via EurekAlert!, a service of AAAS.

Note: Materials may be edited for content and length. For further information, please contact the source cited above.


Journal Reference:

  1. Freddie Withers, Thomas Hardisty Bointon, Monica Felicia Craciun, Saverio Russo. All-Graphene Photodetectors. ACS Nano, 2013; : 130418094258009 DOI: 10.1021/nn4005704

Note: If no author is given, the source is cited instead.

Disclaimer: Views expressed in this article do not necessarily reflect those of ScienceDaily or its staff.

Source: http://feeds.sciencedaily.com/~r/sciencedaily/top_news/~3/eCtfkj2ncUw/130419121116.htm

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