Bulletin of the American Physical Society
APS March Meeting 2010
Volume 55, Number 2
Monday–Friday, March 15–19, 2010; Portland, Oregon
Session D3: Materials for Solar to Electricity Conversion: Status and Future
2:30 PM–4:54 PM,
Monday, March 15, 2010
Room: Oregon Ballroom 203
Sponsoring Units: DMP GERA
Chair: Ramamoorthy Ramesh, University of California, Berkeley
Abstract ID: BAPS.2010.MAR.D3.2
Abstract: D3.00002 : Interfacial Modification for Enhanced Performance of OPV Devices*
3:06 PM–3:42 PM
Preview Abstract Abstract
(National Renewable Energy Laboratory)
Organic Photovoltaics (OPV) represent a potentially low cost, scalable approach to produce renewable energy at near the Terrawatt scale. Their low temperature solution based processing potentially leads to cost/per watt well below \$0.50. Over the last year OPV has seen a rapid evolution in efficiency to a now certified 7.9\% for Solarmer. As important module efficiencies are nearing 4\% supporting scalability. There is now a pretty clear pathway for developing acceptors and donors so as to achieve 10\% or greater. One of the key questions remaining is that of the stability of OPV devices and the potential for their lifetime to be sufficient for commercial viability. Critical to this is both the intrinsic stability of the donor/acceptor phase separated mixture and the stability of the interfaces especially those between the inorganic and organic phases. We will report on a number of recent studies beginning to look at the mechanisms of degradation in OPV device structures and on their potential resolution through new materials, new device configurations and enhanced encapsulation. Current data indicates that there is no inherent instability in the bulk heterojunction and that solving the interfacial issues may lead to devices of sufficient stability for commercial viability.\\[4pt] In collaboration with Joseph Berry, Matthew Lloyd, Matt White, Nikos Kopidakis, Xerxes Steires, Ajaya Sigdel, Nicodemus Widjonarko, Matthew Reese and Sean Shaheen, and Dana Olsen, National Renewable Energy Laboratory.
*We gratefully acknowledge the support of the DOE PV program and EFRC lead by University of Arizona.
To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2010.MAR.D3.2
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