Navigation Links
Dream screens from graphene
Date:8/1/2011

ed at using pure graphene. It might work theoretically, but when you put it on a substrate, it doesn't have high enough conductivity at a high enough transparency. It has to be assisted in some way."

Conversely, said postdoctoral researcher Yu Zhu, lead author of the new paper, fine metal meshes show good conductivity, but gaps in the nanowires to keep them transparent make them unsuitable as stand-alone components in conductive electrodes.

But combining the materials works superbly, Zhu said. The metal grid strengthens the graphene, and the graphene fills all the empty spaces between the grid. The researchers found a grid of five-micron nanowires made of inexpensive, lightweight aluminum did not detract from the material's transparency.

"Five-micron grid lines are about a 10th the size of a human hair, and a human hair is hard to see," Tour said.

Tour said metal grids could be easily produced on a flexible substrate via standard techniques, including roll-to-roll and ink-jet printing. Techniques for making large sheets of graphene are also improving rapidly, he said; commercial labs have already developed a roll-to-roll graphene production technique.

"This material is ready to scale right now," he said.

The flexibility is almost a bonus, Zhu said, due to the potential savings of using carbon and aluminum instead of expensive ITO. "Right now, ITO is the only commercial electrode we have, but it's brittle," he said. "Our transparent electrode has better conductivity than ITO and it's flexible. I think flexible electronics will benefit a lot."

In tests, he found the hybrid film's conductivity decreases by 20 to 30 percent with the initial 50 bends, but after that, the material stabilizes. "There were no significant variations up to 500 bending cycles," Zhu said. More rigorous bending test will be left to commercial users, he said.

"I don't know how many times a person would roll up a computer,"
'/>"/>

Contact: David Ruth
druth@rice.edu
713-348-6327
Rice University
Source:Eurekalert

Page: 1 2 3

Related biology technology :

1. FightSMA Launches Gene Therapy Fundraising Campaign: “Realizing the Dream”
2. North Carolina Couple Finds Hope for a Healthy Baby through Technology that Screens Embryos for Genetic Disorders
3. Touchscreens made of carbon
4. Coming to TV screens of the future: A sense of smell
5. Graphene pioneers follow in Nobel footsteps
6. New graphene-based material clarifies graphite oxide chemistry
7. Researchers discover method for mass production of nanomaterial graphene
8. Light-speed nanotech: Controlling the nature of graphene
9. Scientists prove graphenes edge structure affects electronic properties
10. Graphene yields secrets to its extraordinary properties
11. Graphene may have advantages over copper for IC interconnects at the nanoscale
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:11/26/2014)... PHILADELPHIA , Nov. 26, 2014 Space ... Human exploration of space requires astronauts to maintain consistently ... and success, and prevent potential errors and accidents. Despite ... is known about how cognition is affected by prolonged ... Now, Penn Medicine researchers are poised to ...
(Date:11/26/2014)... November 26, 2014 PMG Research, Inc. ... PMG Research is a network of sites that provide clinical ... over 2 million patient lives through its partnerships with large ... of 11 hub site locations in the Southeastern United States ... term of the board will be held by: ...
(Date:11/26/2014)... Continuing its award-winning streak, Nerium International, the ... Awards for outstanding creative achievement by its marketing and ... the organization’s top honor, in the Branding category for ... April of this year. The event showcased top speakers ... was awarded a Gold MarCom Award in the Special ...
(Date:11/26/2014)... SoundConnect , an award winning unified communications ... Darren Suders has joined the team as Director of ... partner program through innovative offerings, consistent partner ... brings more than 10-years of channel telecommunication experience to ... from policy development, to partner education and to expansion. ...
Breaking Biology Technology:Penn Medicine Team Develops Cognitive Test Battery to Assess the Impact of Long Duration Spaceflights on Astronauts' Brain Function 2Penn Medicine Team Develops Cognitive Test Battery to Assess the Impact of Long Duration Spaceflights on Astronauts' Brain Function 3Penn Medicine Team Develops Cognitive Test Battery to Assess the Impact of Long Duration Spaceflights on Astronauts' Brain Function 4PMG Research Names Medical Advisory Board 2PMG Research Names Medical Advisory Board 3Nerium International™ Wins One Platinum, Two Gold MarCom Awards 2SoundConnect Appoints Director of Channel Development & Sales 2
... SRI International has been awarded two National Cancer Institute ... provide SRI up to $11.7 million for toxicology studies ... studies that will be carried out through NCI,s Developmental ... SRI,s preclinical studies for the NCI, one of the ...
... 5, 2011 BioCrossroads today announced the receipt of ... The grant will fund a range of charitable, educational ... build upon Indiana,s signature strengths in the life sciences. ... in early 2012, we recognize that Lilly Endowment,s significant ...
... Elsevier, a world-leading provider of scientific, technical ... of Sydney, Australia,s leading higher education and research university, ... Hackathon . From Saturday, September 24 ... improve delivery of scientific, medical and technical content using ...
Cached Biology Technology:SRI International Awarded Two National Cancer Institute Preclinical Development Service Contracts 2SRI International Awarded Two National Cancer Institute Preclinical Development Service Contracts 3Two-year $2.8 million Grant from Lilly Endowment Fuels BioCrossroads' Charitable, Educational and Scientific Mission 2Two-year $2.8 million Grant from Lilly Endowment Fuels BioCrossroads' Charitable, Educational and Scientific Mission 3Elsevier and the University of Sydney Announce Prize Winners of 24-Hour Hackathon 2Elsevier and the University of Sydney Announce Prize Winners of 24-Hour Hackathon 3Elsevier and the University of Sydney Announce Prize Winners of 24-Hour Hackathon 4Elsevier and the University of Sydney Announce Prize Winners of 24-Hour Hackathon 5
(Date:11/4/2014)... Temple University School of Medicine announced today that ... initiative funded by the Bill & Melinda Gates ... Obstetrics, Gynecology and Reproductive Sciences; and Vice Chair ... School of Medicine will pursue an innovative global ... Biomarkers to Assess Fetal Neurodevelopment.", Grand Challenges Explorations ...
(Date:11/4/2014)... majority of Madagascar,s 101 species of lemurs are threatened ... the rainforests they call home. A new study by ... have on rainforest tree populations, which raises concerns about ... region,s rich biodiversity. , A large proportion of trees ... Lemurs in turn disperse the seeds of their fruit ...
(Date:11/3/2014)... 2014  NeuroSigma ® , Inc. (NeuroSigma), a ... focused on commercialization of its non-invasive ... of neurological and neuropsychiatric disorders, announced today that ... a Notice of Allowance for Mexican Patent Application ... NeuroSigma and the Regents of the University of ...
Breaking Biology News(10 mins):Temple University School of Medicine receives Grand Challenges Explorations grant 2Gardeners of Madagascar rainforest at risk 2Gardeners of Madagascar rainforest at risk 3NeuroSigma Receives Notice of Allowance from the Mexican Institute of Industrial Property Covering Subcutaneous Trigeminal Nerve Stimulation (sTNS) 2NeuroSigma Receives Notice of Allowance from the Mexican Institute of Industrial Property Covering Subcutaneous Trigeminal Nerve Stimulation (sTNS) 3
... CA (1 April 2010)Two conservationists who have dedicated their ... brink of extinction and ensure their habitat remains for ... for Environmental Achievement, one of the world,s first international ... 1973, the Tyler Prize continues to be the premier ...
... Programs of the National Academy of Sciences will co-host ... Center for Art, Design, and Visual Culture (University of ... Arts in Museum Studies Program. The online symposium ... through April 14. A group of more than ...
... researchers and academics from around the world will ... Digestive Disease Week (DDW), the premiere scientific conference ... gastrointestinal surgery. Each day of the ... a broad variety of gastrointestinal health issues: the ...
Cached Biology News:Leading conservation scientists awarded prestigious 2010 Tyler Environmental Prize 2Leading conservation scientists awarded prestigious 2010 Tyler Environmental Prize 3NAS announces visual culture and evolution online symposium 2NAS announces visual culture and evolution online symposium 3Latest research on GI health presented at DDW 2010 2
...
Immunogen: Synthetic peptide (aa sequence is considered to be commercially sensitive) Storage: -20 C, Avoid Freeze/Thaw Cycles...
TRIzol Reagents are ready-to-use monophasic solutions of phenol and guanidine isothiocyanate suitable for isolating total RNA DNA and proteins (16)....
...
Biology Products: