Navigation Links
Scientists create world's first molecular transistor
Date:12/23/2009

This release is available in Chinese.

New Haven, Conn.A group of scientists has succeeded in creating the first transistor made from a single molecule. The team, which includes researchers from Yale University and the Gwangju Institute of Science and Technology in South Korea, published their findings in the December 24 issue of the journal Nature.

The team, including Mark Reed, the Harold Hodgkinson Professor of Engineering & Applied Science at Yale, showed that a benzene molecule attached to gold contacts could behave just like a silicon transistor.

The researchers were able to manipulate the molecule's different energy states depending on the voltage they applied to it through the contacts. By manipulating the energy states, they were able to control the current passing through the molecule.

"It's like rolling a ball up and over a hill, where the ball represents electrical current and the height of the hill represents the molecule's different energy states," Reed said. "We were able to adjust the height of the hill, allowing current to get through when it was low, and stopping the current when it was high." In this way, the team was able to use the molecule in much the same way as regular transistors are used.

The work builds on previous research Reed did in the 1990s, which demonstrated that individual molecules could be trapped between electrical contacts. Since then, he and Takhee Lee, a former Yale postdoctoral associate and now a professor at the Gwangju Institute of Science and Technology, developed additional techniques over the years that allowed them to "see" what was happening at the molecular level.

Being able to fabricate the electrical contacts on such small scales, identifying the ideal molecules to use, and figuring out where to place them and how to connect them to the contacts were also key components of the discovery. "There were a lot of technological advances and understanding we built up over many years to make this happen," Reed said.

There is a lot of interest in using molecules in computer circuits because traditional transistors are not feasible at such small scales. But Reed stressed that this is strictly a scientific breakthrough and that practical applications such as smaller and faster "molecular computers"if possible at allare many decades away.

"We're not about to create the next generation of integrated circuits," he said. "But after many years of work gearing up to this, we have fulfilled a decade-long quest and shown that molecules can act as transistors."


'/>"/>

Contact: Suzanne Taylor Muzzin
suzanne.taylormuzzin@yale.edu
203-403-8555
Yale University
Source:Eurekalert  

Related biology technology :

1. 6 PNNL scientists elected AAAS fellows
2. Particle Size Distribution Technologies at American Association of Pharmaceutical Scientists (AAPS) Annual Meeting 2010
3. Argonne Scientists Use Bacteria to Power Simple Machines
4. Online Video of InVitria's Zap-CHO Helps Scientists Maximize CHO Cell Culture Performance
5. Scientists Rediscover Gene Target for Cancer Therapy
6. MEDINA Scientists Select Genedata Screener for Lead Discovery from Natural Products
7. Scientists demonstrate multibeam, multi-functional lasers
8. Forensic Scientists at Kansas City Crime Lab Release Validation Report Confirming Zygems forensicGEM(R) Kit is a Reliable, Rapid Method for Extracting DNA From Saliva
9. Biomodels Scientists Report Development of a Novel Model for Cancer Treatment-Related Fatigue
10. Scientists develop novel method to generate functional hepatocytes for drug testing
11. Harvard scientists bend nanowires into 2-D and 3-D structures
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Scientists create world's first molecular transistor
(Date:3/28/2017)... ... , ... Executive search firm, Slone Partners, announces the placement ... a distinguished life sciences expert with a proven track record in strategic global ... range of services related to laboratory testing and analysis for the pharmaceutical, medical ...
(Date:3/27/2017)... Infectex Ltd., a Russian portfolio company of Maxwell Biotech Venture ... added to the standard drug therapy regimen in patients with multidrug-resistant pulmonary tuberculosis (MDR-TB). ... USA ) and the US National Institutes of Health. ... ... Logo ...
(Date:3/27/2017)... ... March 27, 2017 , ... A research team led ... grafts in JoVE’s Video Journal, the world’s first peer-reviewed scientific video journal. The ... treating coronary artery disease (CAD). Lam is an assistant professor at the Department ...
(Date:3/24/2017)... and ROCKVILLE, Md. , March 24, ... Maxwell Biotech Venture Fund (MBVF), today announced positive results ... to the standard drug therapy regimen in patients with ... molecule drug discovered by scientists at Sequella, Inc. ( ... of Health. A total of 140 ...
Breaking Biology Technology:
(Date:3/9/2017)... Australia , March 9, 2017 /PRNewswire/ ... at the prestigious World Lung Imaging Workshop at the ... Fouras , was invited to deliver the latest data ... This globally recognised event brings together leaders at the ... latest developments in lung imaging. "The ...
(Date:3/2/2017)... 2, 2017 Summary This report provides ... its partnering interests and activities since 2010. ... Read the full report: ... since 2010 report provides an in-depth insight into the partnering ... On demand company reports are prepared upon purchase ...
(Date:2/28/2017)... , Feb. 28, 2017   Acuant , a ... globally, announces significant enhancements to new and core technologies ... New products include mobile and desktop Acuant FRM TM ... - a real time manual review of identity ... technology provides the fastest and most accurate capture software ...
Breaking Biology News(10 mins):