Navigation Links
Penn and Drexel team demonstrates new paradigm for solar cell construction
Date:11/12/2013

For solar panels, wringing every drop of energy from as many photons as possible is imperative. This goal has sent chemistry, materials science and electronic engineering researchers on a quest to boost the energy-absorption efficiency of photovoltaic devices, but existing techniques are now running up against limits set by the laws of physics.

Now, researchers from the University of Pennsylvania and Drexel University have experimentally demonstrated a new paradigm for solar cell construction which may ultimately make them less expensive, easier to manufacture and more efficient at harvesting energy from the sun.

The study was led by professor Andrew M. Rappe and research specialist Ilya Grinberg of the Department of Chemistry in Penn's School of Arts and Sciences, along with chair Peter K. Davies of the Department of Materials Science and Engineering in the School of Engineering and Applied Science, and professor Jonathan E. Spanier, of Drexel's Department of Materials Science and Engineering.

It was published in the journal Nature.

Existing solar cells all work in the same fundamental way: they absorb light, which excites electrons and causes them to flow in a certain direction. This flow of electrons is electric current. But to establish a consistent direction of their movement, or polarity, solar cells need to be made of two materials. Once an excited electron crosses over the interface from the material that absorbs the light to the material that will conduct the current, it can't cross back, giving it a direction.

"There's a small category of materials, however, that when you shine light on them, the electron takes off in one particular direction without having to cross from one material to another," Rappe said. "We call this the 'bulk' photovoltaic effect, rather than the 'interface' effect that happens in existing solar cells. This phenomenon has been known since the 1970s, but we don't make solar c
'/>"/>

Contact: Evan Lerner
elerner@upenn.edu
215-573-6604
University of Pennsylvania
Source:Eurekalert  

Page: 1 2 3 4 5

Related biology news :

1. Drexel researchers looking inside vessels to understand bloods ebb and flow
2. Making memories: Drexel researchers explore the anatomy of recollection
3. Marvin Test Solutions Demonstrates Next-Generation Armament Test Solutions at Paris Air Show
4. Fingerprint Cards (FPC) Demonstrates Fingerprint Biometric Touch Sensor for Microsoft Windows 8.1
5. Rotavirus vaccine developed in India demonstrates strong efficacy
6. Genetic study of house dust mites demonstrates reversible evolution
7. First-in-man study demonstrates the therapeutic effect of RNAi gene silencing in cancer treatment
8. UT Arlington physics team demonstrates new power generation technique
9. University of Toronto study demonstrates impact of adversity on early life development
10. Published clinical trial demonstrates efficacy of Sea-Band® for migraine-related nausea
11. WALTHAM® demonstrates commitment to scientific dialogue and exchange at international human animal interaction conference
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Penn and Drexel team demonstrates new paradigm for solar cell construction
(Date:4/27/2015)... , Apr. 27, 2015 Profile Solutions, ... control and security systems is pleased to announce that ... as a consultant and member of its scientific advisory ... widely known as a thought leader in technology-enhanced learning ... Technology Group, and has published studies and books focused ...
(Date:4/17/2015)... Increasing adoption in ... to drive biometric systems market in ... According to a recently released TechSci Research ... biometric systems market in Saudi Arabia ... CAGR of over 22% through 2020. The market ...
(Date:4/13/2015)... 13, 2015  higi, a leading cloud-based consumer engagement ... fully engage with their communities around health and wellness, ... and secure API.  ... accessible, affordable, and convenient vehicle to receive validated health ... The API will allow higi,s trusted partners, ...
Breaking Biology News(10 mins):Profile Solutions Names Medicinal Cannabis, Agriculture and Technology Expert Dr. Gerry Bedore to its Scientific Advisory Board 2Profile Solutions Names Medicinal Cannabis, Agriculture and Technology Expert Dr. Gerry Bedore to its Scientific Advisory Board 3Profile Solutions Names Medicinal Cannabis, Agriculture and Technology Expert Dr. Gerry Bedore to its Scientific Advisory Board 4Saudi Arabia Biometric Systems Market to Grow at 22% Through 2020, Says TechSci Research 2Saudi Arabia Biometric Systems Market to Grow at 22% Through 2020, Says TechSci Research 3higi Launches Seamless Access to HIPAA-Compliant Health Outcomes and Activity Data 2higi Launches Seamless Access to HIPAA-Compliant Health Outcomes and Activity Data 3
... to synchronize the pitch of their calls with an extremely high ... call to call, according to a new study of the blue ... the Journal of the Acoustical Society of America . The ... could allow individual whales to locate potential mates by swimming toward ...
... bowel syndrome has been traced to a small piece of ... to hostile conditions that can produce diarrhea, bloating and chronic ... sends signals that stop the activity of the gene that ... shortage of glutamine in the gut with the seepage of ...
... that could lead to new drugs that reduce the ... in the August 2010 issue of Journal of ... with the function of the cell membrane protein called ... relevant model of severe infection. "Clinical trials ...
Cached Biology News:Blue whales align the pitch of their songs with extreme accuracy, study finds 2Scientists target possible cause of 1 form of bowel disease 2Scientists target possible cause of 1 form of bowel disease 3
(Date:5/21/2015)... 2015 /PRNewswire/ - SQI Diagnostics Inc. ("SQI" or the ... develops and commercializes proprietary technologies and products for advanced ... for the second fiscal quarter ended March 31, 2015. ... to advance business with our existing customers and to ... and CEO of SQI. "The delivery of a fully ...
(Date:5/21/2015)... Specialty Pharmacy Times has completed ... to BPA Worldwide as a business publication member. ... data for Specialty Pharmacy Times based on business/distribution, ... a member of BPA Worldwide, Specialty Pharmacy Times ... with the most reliable, unequaled data,” said Chris ...
(Date:5/21/2015)... -- Prima Biomed Ltd. (NASDAQ: PBMD ) a globally ... leader in the development of immunotherapeutic products for the ... data from the Phase II CAN-003 ovarian cancer clinical ... meaningful improvement in Overall Survival ("OS") over standard of ... the group of second remission patients (n=20), the median ...
(Date:5/21/2015)... , May 21, 2015  The EveryLife ... Hatch (R-UT) and Amy Klobuchar ... Now Accelerating Cures & Treatments, or OPEN ACT. ... disease patient advocacy organizations, this bipartisan legislation promises ... affordable medicines to rare disease patients by incentivizing ...
Breaking Biology Technology:SQI Diagnostics Reports Second Quarter Financial Results 2SQI Diagnostics Reports Second Quarter Financial Results 3SQI Diagnostics Reports Second Quarter Financial Results 4SQI Diagnostics Reports Second Quarter Financial Results 5SQI Diagnostics Reports Second Quarter Financial Results 6SQI Diagnostics Reports Second Quarter Financial Results 7SQI Diagnostics Reports Second Quarter Financial Results 8Specialty Pharmacy Times Joins BPA Worldwide 2Correction Continues after Big Move - BrokerBank Securities, Inc. 2Advocates Cheer Senate Leaders for Introducing Bipartisan Bill to Increase Number of Rare Disease Treatments 2
... ... ... today announced it has made two cotton acquisitions in India to enhance its product lineup ... the cotton seed business of Nandi Seeds, based in Mehboob Nagar, Andhra Pradesh, India, and ...
... Del. and MONHEIM, Germany, June 25 DuPont (NYSE: ... into a series of long-term business agreements related to ... help increase agricultural productivity around the world. , ... for both parties through herbicide and seed sales as ...
... Qforma, an advanced analytics and predictive modeling ... and field operations positions: Mark J. Grove is appointed Senior ... Qforma from Director, Field Operations to Vice President, Sales and ... Directors, Field Operations. , , These appointments follow a ...
Cached Biology Technology:DuPont Adds Cotton to India Seed Product Lineup 2DuPont Adds Cotton to India Seed Product Lineup 3DuPont Adds Cotton to India Seed Product Lineup 4DuPont and Bayer CropScience Expand Collaboration With Broad License Agreements 2DuPont and Bayer CropScience Expand Collaboration With Broad License Agreements 3DuPont and Bayer CropScience Expand Collaboration With Broad License Agreements 4Qforma Appoints Four Executives in Sales and Field Operations 2Qforma Appoints Four Executives in Sales and Field Operations 3
... the proven features of the pET, BacVector ... all of the benefits and versatility of ... The pTriEx vectors have been extensively tested ... all three expression systems. In each case, ...
Rabbit polyclonal to Shigella Immunogen: Mixture of S. boydii, S. flexneri & S. dysenteriae....
... ALDEFLUOR Stem Cell Identification ... comprises a substrate for ... (ALDH) that is highly ... stem cells, making ALDH ...
Yellow oily liquid. Contains 85% Drakeol 5NF, 15% Arlacel A (mannide monooleate emulsifier). Heat sterilized. Contains zero colony forming units/ml. ...
Biology Products: