Featured Research

from universities, journals, and other organizations

Scientists Create Organic Photovoltaic Devices To Convert Light Into Electricity

Date:
August 24, 2000
Source:
Virginia Tech
Summary:
Virginia Tech researchers from physics, chemistry, and chemical engineering are working with a local company to create thin films that convert light into electricity.

Virginia Tech researchers from physics, chemistry, and chemical engineering are working with a local company to create thin films that convert light into electricity. The research will be presented by Willi Graupner, assistant professor of physics, at the 220th American Chemical Society national meeting in Washington, D.C. Aug. 20-24.

The scientists are using the ionically self-assembled monolayers (ISAM) process to fabricate optoelectronic devices. The process allows molecule-thick layers of oppositely-charged materials to build up on a base structure.

In this case, one of the layers is made up of carbon molecules known as Fullerenes and another layer is a positively charged polymer. Fullerenes have high electron affinity, so they will accept electrons easily from photoexcited molecules of a conducting polymer, creating a polymer with a negative charge. The result is a material to be used in a solar cell, generating a current from a negatively charged Fullerene and a positively charged polymer.

Thus a photovoltaic device is created without the use of toxic solvents or expensive instruments and under ambient conditions.

The paper (PMSE 258), "Efficient charge generation in conjugate molecules," discusses the influences of the chemical composition, sequence, and distance of materials on the electronic properties, particularly efficient charge generation, in the process of creating organic photovoltaic devices. Authors are Thomas Piok, Charles Brands, Patrick J. Neyman, Artur Erlacher, Charuta Soman, Mary A. Murray, and Raoul Schroeder, all Virginia Tech physics students;.James R. Heflin and Willi Graupner, physics professors; Daniela Marciu, Adam Drake, and M.B. Miller, all of Luna Innovations, Inc. of Blacksburg, Va.; Hong Wang, Virginia Tech chemistry postdoctoral fellow; Harry W. Gibson, and Harry C. Dorn, Virginia Tech chemistry professors; Guenter Leising of the Institut fuer Festkorperphysik, Technische Universitat Graz; Mathew T. Guzy, Virginia Tech chemical engineering student; and Richie M. Davis, Virginia Tech chemical engineering professor.

The paper will be presented by Graupner on Wednesday, Aug. 23, at 9 a.m. in the JW Marriott Hotel Grand Ballroom, Salon III, as part of the Organic Thin Films for Photonic Applications symposium.


Story Source:

The above story is based on materials provided by Virginia Tech. Note: Materials may be edited for content and length.


Cite This Page:

Virginia Tech. "Scientists Create Organic Photovoltaic Devices To Convert Light Into Electricity." ScienceDaily. ScienceDaily, 24 August 2000. <www.sciencedaily.com/releases/2000/08/000824081100.htm>.
Virginia Tech. (2000, August 24). Scientists Create Organic Photovoltaic Devices To Convert Light Into Electricity. ScienceDaily. Retrieved October 23, 2014 from www.sciencedaily.com/releases/2000/08/000824081100.htm
Virginia Tech. "Scientists Create Organic Photovoltaic Devices To Convert Light Into Electricity." ScienceDaily. www.sciencedaily.com/releases/2000/08/000824081100.htm (accessed October 23, 2014).

Share This



More Matter & Energy News

Thursday, October 23, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

3D Printed Instruments Make Sweet Music in Sweden

3D Printed Instruments Make Sweet Music in Sweden

Reuters - Innovations Video Online (Oct. 23, 2014) Students from Lund University's Malmo Academy of Music are believed to be the world's first band to all use 3D printed instruments. The guitar, bass guitar, keyboard and drums were built by Olaf Diegel, professor of product development, who says 3D printing allows musicians to design an instrument to their exact specifications. Matthew Stock reports. Video provided by Reuters
Powered by NewsLook.com
Chameleon Camouflage to Give Tanks Cloaking Capabilities

Chameleon Camouflage to Give Tanks Cloaking Capabilities

Reuters - Innovations Video Online (Oct. 22, 2014) Inspired by the way a chameleon changes its colour to disguise itself; scientists in Poland want to replace traditional camouflage paint with thousands of electrochromic plates that will continuously change colour to blend with its surroundings. The first PL-01 concept tank prototype will be tested within a few years, with scientists predicting that a similar technology could even be woven into the fabric of a soldiers' clothing making them virtually invisible to the naked eye. Matthew Stock reports. Video provided by Reuters
Powered by NewsLook.com
Jet Sales Lift Boeing Profit 18 Pct.

Jet Sales Lift Boeing Profit 18 Pct.

Reuters - Business Video Online (Oct. 22, 2014) Strong jet demand has pushed Boeing to raise its profit forecast for the third time, but analysts were disappointed by its small cash flow. Fred Katayama reports. Video provided by Reuters
Powered by NewsLook.com
Internet of Things Aims to Smarten Your Life

Internet of Things Aims to Smarten Your Life

AP (Oct. 22, 2014) As more and more Bluetooth-enabled devices are reaching consumers, developers are busy connecting them together as part of the Internet of Things. (Oct. 22) Video provided by AP
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:

Strange & Offbeat Stories


Space & Time

Matter & Energy

Computers & Math

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins