Navigation Links
Discovery of a 'dark state' could mean a brighter future for solar energy
Date:12/17/2011

ntly captured to generate more energy in the semiconductor pentacene.

Zhu said that exploiting that mechanism could increase solar cell efficiency to 44 percent without the need for focusing a solar beam, which would encourage more widespread use of solar technology.

The research team was spearheaded by Wai-lun Chan, a postdoctoral fellow in Zhu's group, with the help of postdoctoral fellows Manuel Ligges, Askat Jailaubekov, Loren Kaake and Luis Miaja-Avila. The research was supported by the National Science Foundation and the Department of Energy.

Science Behind the Discovery

  • Absorption of a photon in a pentacene semiconductor creates an excited electron-hole pair called an exciton.
  • The exciton is coupled quantum mechanically to a dark "shadow state" called a multiexciton.
  • This dark shadow state can be the most efficient source of two electrons via transfer to an electron acceptor material, such as fullerene, which was used in the study.
  • Exploiting the dark shadow state to produce double the electrons could increase solar cell efficiency to 44 percent.


'/>"/>

Contact: Xiaoyang Zhu
zhu@cm.utexas.edu
512-471-9914
University of Texas at Austin
Source:Eurekalert

Page: 1 2

Related biology technology :

1. Affitech and Omeros Enter Into Antibody Discovery and Development Agreement
2. Concentric Named Professional Agency of Record for Discovery Labs SURFAXIN(R)
3. ChanTest to Highlight the Worlds Largest Catalog of Ion Channel-Expressing Cell Lines and Discovery Services at Ion Channel Targets, Booth 5
4. Biotechnology & Drug Discovery Markets Push Up Demand for Lab Automation Products, According to a New Report by Global Industry Analysts
5. Assay Designs(TM), Inc. and the Spinal Muscular Atrophy Foundation Announce Collaboration To Accelerate the Discovery of New Therapeutics for Spinal Muscular Atrophy (SMA)
6. ChanTest to Highlight the Worlds Largest Catalog of Ion Channel-Expressing Cell Lines and Discovery Services at Assays & Cellular Targets Conference, Booth 11
7. Affitech Announces Second Milestone in Roche Antibody Discovery Collaboration
8. The Lilly TB Drug Discovery Initiative Begins Work on New Compounds to Fill Early-Stage TB Drug Pipeline
9. Update: The Lilly TB Drug Discovery Initiative Begins Work on New Compounds to Fill Early-Stage TB Drug Pipeline
10. deCODE Discovery Sheds Light on Risk of the Most Common Form of Skin Cancer
11. Global Drug Discovery Technologies Market to Exceed $57 Billion by 2012, According to a New Report by Global Industry Analysts
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/11/2014)... July 11, 2014 BCC Research ( ... DIGITAL POLYMERASE CHAIN REACTION (PCR) TECHNOLOGY: GLOBAL MARKETS , ... technology reached nearly $140 billion in 2013. This is ... a five-year compound annual growth rate (CAGR) of 28.6%. ... of interesting and exciting possibilities within the broader PCR ...
(Date:7/11/2014)... 11, 2014 Cayenne Medical, Inc., ... in the soft tissue reconstruction segment, announced the ... for surgeries involving the shoulder and extremities. The ... novel, inserter-controlled deployment method. The unique delivery eliminates ... anchor pull-out, or anchor displacement (also commonly know ...
(Date:7/10/2014)... 2014 Understanding the need for better ... and the gap that currently exists in this area, ... industry-leading portfolio of validated ion channel and GPCR cell ... lines, as ion channels control many critical physiological functions ... creates the potential to treat a variety of human ...
(Date:7/10/2014)... (PRWEB) July 10, 2014 OMICS Group’s ... techniques during 18-20 August, 2014 at Double Tree by ... the recent developments in Analytical & Bioanalytical research methods ... , Speaking on this occasion, Dr. Srinubabu Gedela, MD ... Acta conference is a remarkable one in bringing a ...
Breaking Biology Technology:Global Market for Digital Polymerase Chain Reaction Technology to Reach $490 Billion by 2018; Equipment Sector Accounts for the Fastest Growing Segment With 33% CAGR 2Global Market for Digital Polymerase Chain Reaction Technology to Reach $490 Billion by 2018; Equipment Sector Accounts for the Fastest Growing Segment With 33% CAGR 3Cayenne Medical Launches SureLock™ All-Suture Anchor System for Shoulder and Extremity Surgery 2Cayenne Medical Launches SureLock™ All-Suture Anchor System for Shoulder and Extremity Surgery 3Leader in Ion Channel Research Announces Newly Validated and Re-Engineered Cells 2Leader in Ion Channel Research Announces Newly Validated and Re-Engineered Cells 3A Critical Review of Analytical Techniques for Improved Living Standards 2A Critical Review of Analytical Techniques for Improved Living Standards 3A Critical Review of Analytical Techniques for Improved Living Standards 4
... Madison Internet service provider SupraNet plans to ... the Aidmatrix Foundation, a global disaster-relief firm run by ... CEO Bryan Chan said in a press release that ... number of recent disasters the charity is responding to, ...
... of Wisconsin-Madison MBA program was ranked 51st in ... U.S. public university programs by the London Financial Times ... , ,These rankings are based on alumni careers and ... data provided by the schools and a survey of ...
... development assessment group for its high quality of life and ... States, released last week by the non-profit Corporation for Enterprise ... in business vitality and development capacity, based on 2004 data. ... subcategories that made up those three overall marks. , ,Perhaps ...
Cached Biology Technology:
(Date:7/11/2014)... 2014 Researchers have pioneered a revolutionary new ... technology, called Virtual Finger, allows scientists to move ... and synapses using the flat surface of their ... imaging studies orders of magnitude more efficient, saving ... across many areas of experimental biology. The software ...
(Date:7/11/2014)... hippocampus, the marginal division of the striatum is ... the impact degree of substance P in the ... Yan Yu and his team, College of Biophotonics, ... staining, that substance P receptor, neurokinin 1 was ... division of normal rats. Unilateral or bilateral injection ...
(Date:7/11/2014)... DUBLIN , July 11, 2014 ... the "International Biometrics Technology Market - Industry Analysis ... report to their offering. ... attacks and crimes has created a need for high ... methods used for personnel authentication such as username and ...
Breaking Biology News(10 mins):Virtual finger enables scientists to navigate and analyze complex 3D images 2International Biometrics Technology Market - Industry Analysis Size Share Growth Trends and Forecast to 2019 2
... the Hebrew University of Jerusalem have achieved, for the ... cells of Fragile X patients. The discovery paves the ... gene expression in Fragile X patients. Fragile X ... retardation, affecting hundreds of thousands of patients worldwide. The ...
... differences between plants and animals, subtle ones lie concealed within ... animal cells, the nucleus contains DNA, which condenses into ... counted at that stage, revealing the chromosome number ... number spans a relatively short range across animal species (2-296: ...
... (Santa Barbara, Calif.) After an announcement by federal ... searching for a way to treat Alzheimer,s Disease are ... them to test a therapy for a genetically predestined ... incredible," said UC Santa Barbara neuroscientist Ken Kosik, who ...
Cached Biology News:Stem cell research paves way for progress on dealing with Fragile X retardation 2Does polyploidy play a role in the onset of the Italian endemic flora? 2Clinical trials for Alzheimer's disease preventative drug to begin early 2013 2Clinical trials for Alzheimer's disease preventative drug to begin early 2013 3
Syd-2 (cL-19)...
Anti-MD-2 (IN) Host: rabbit polyclonal Species Reactivity: human, mouse, rat Applications: WB, IHC Storage: 4C...
TNFalpha-IP 2 (G-17)...
The product contains 2 ml Dynabeads® Epoxy (4.5 μm). Supplied at 4 x 10e8 beads/ml...
Biology Products: