Navigation Links
Doping graphene
Date:6/1/2010

An organic molecule that has been found to be effective in making silicon-based electronics may be viable for building electronics on sheets of carbon only a single molecule thick. Researchers at the Max Plank Institute for Metals Research in Stuttgart report the advance in a paper appearing online in the journal Physical Review B on June 1.

Ultrathin carbon layers known as graphene show promise as the basis for a host of extremely small and efficient electronic devices. But in order to create a useful component, the electronic properties of materials like silicon or graphene must be tailored through a doping process. Typically, silicon-based devices are doped by replacing some of the atoms in a silicon crystal with various dopant atoms or molecules . In graphene, on the other hand, dopants are generally deposited on top of the carbon sheet rather than taking the place of some of the carbon atoms. Materials such as gold, bismuth and nitrogen dioxide have been used to dope graphene with varying degrees of success. Now, Max Planck Institute researchers have found that the compound F4-TCNQ (tetrafluoro-tetracyanoquinodimethane), which has been proven effective for producing LEDs in silicon, seems to fit the bill for graphene as well. F4-TCNQ forms stable layers on graphene that are fairly robust under exposure to elevated levels of heat and light, and can control graphene electrical properties in ways that suggest it may be a good dopant choice.

In a Viewpoint article in the current issue of APS Physics (http://physics.aps.org), Alexei Fedorov of the Lawrence Berkeley National Laboratory describes the challenges of creating electronic devices built of graphene and recent attempts to identify doping materials to do the job.


'/>"/>

Contact: James Riordon
riordon@aps.org
301-209-3238
American Physical Society
Source:Eurekalert  

Page: 1

Related biology technology :

1. Doping technique brings nanomechanical devices into the semiconductor world
2. Thermo Fisher Scientific Selected by China Doping Control Center to Supply Testing Instrumentation for the 2008 Olympic Games in Beijing
3. Single-step technique produces both p-type and n-type doping for future graphene devices
4. UM physicists show electrons can travel over 100 times faster in graphene than in silicon
5. Graphene gazing gives glimpse of foundations of universe
6. Graphene used to create worlds smallest transistor
7. Graphene-based gadgets may be just years away
8. By adding graphene, researchers create superior polymer
9. Penn scientists demonstrate potential of graphene films as next-generation transistors
10. Graphene pioneers follow in Nobel footsteps
11. New graphene-based material clarifies graphite oxide chemistry
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Doping graphene
(Date:10/10/2017)... Los Angeles, CA (PRWEB) , ... ... ... Pharmaceuticals, Inc., a development-stage cancer-focused pharmaceutical company advancing targeted antibody-drug conjugate (ADC) ... all uses of targeted HPLN (Hybrid Polymerized Liposomal Nanoparticle), a technology developed ...
(Date:10/10/2017)... ... October 10, 2017 , ... Dr. Bob Harman, founder and CEO ... Diego Rotary Club. The event entitled “Stem Cells and Their Regenerative ... attendees. Dr. Harman, DVM, MPVM was joined by two human doctors: Peter B. ...
(Date:10/10/2017)... Calif. , Oct. 10, 2017 SomaGenics ... from the NIH to develop RealSeq®-SC (Single Cell), expected ... for profiling small RNAs (including microRNAs) from single cells ... Program highlights the need to accelerate development of approaches ... "New techniques for measuring levels ...
(Date:10/10/2017)... ... October 10, 2017 , ... The Pittcon Program ... honoring scientists who have made outstanding contributions to analytical chemistry and ... 2018, the world’s leading conference and exposition for laboratory science, which will be ...
Breaking Biology Technology:
(Date:8/15/2017)... Aug. 15 2017   ivWatch LLC , a medical device ... therapy, today announced receipt of its ISO 13485 Certification, the global ... International Organization for Standardization (ISO®). ... ivWatch Model 400 Continuous Monitoring device for the early detection of ... "This is an important milestone ...
(Date:6/30/2017)... 30, 2017 Today, American Trucking Associations ... of face and eye tracking software, became the ... program. "Artificial intelligence and advanced ... monitor a driver,s attentiveness levels while on the ... to detect fatigue and prevent potential accidents, which ...
(Date:6/14/2017)... June 15, 2017  IBM (NYSE: IBM ) is introducing ... event dedicated to developing collaboration between startups and global businesses, ... 15-17. During the event, nine startups will showcase the solutions ... various industries. France ... market, with a 30 percent increase in the number of ...
Breaking Biology News(10 mins):