Nanoscale Polymeric Photocells by Advanced Electrospinning
Abstract
We presented detailed study of postproduction neat treatment of organic solar cells based on RR-P3HT:PCBM composite in a wide temperature range. The efficiency of such device was significantly Improved by postproduction heat treatment. Optimized parameters yielded >3% efficiency for devices on glass substrates and of <3% for that on flexible substrates. We also report studies of nanocomposites of conjugated polymer with infrared-sensitive, PbSe NCs. Thin film cells show good diode characteristics and sizable photovoltaic response with an open circuit voltage, V(sub oc), of ~ 0.3-0.4V1, short circuit currents, J(sub sc), of 0.2 mA/sq cm. Photovoltaic response Is observed as far to the red as 2 microns. which Is desirable for efficient utilization of both infrared and ultraviolet regions of the solar spectrum. We have demonstrated that MWCNT sheet can be used as the hole collecting electrode in organic solar cells based on RR-P3HT: PCBM composites. Our preliminary results show relatively high photovoltaic characteristics with an open circuit voltage of 0.49V, a short circuit current of 5.47 mA/sq cm and efficiency of 1.3%. Novel polymers are synthesized. Including Donor/Acceptor block copolymers and functionalized PHT. Their optical and electric properties were characterized, and we started testing their application In both photovoltaic cells and photodetectors.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 20, 2006
- Accession Number
- ADA451555
Entities
People
- Anvar A. Zakhidov
- John Ferraris
- Kenneth Balkus
Organizations
- University of Texas at Dallas