Dr. Tingbin Yang
Institute of Polymer Optoelectronic Materials and Devices
South China University of Technology
Guangzhou, China
Friday, Novermber 23, 2012
10:30 – 11:30 am Research Seminar 205 G Hall
Abstract
Bulk heterojunction(BHJ) polymer solar cells(PSCs) based on conjugated polymers and fullerene derivatives in recent years have attracted great attention due to their postential low-cost, easy fabrication and frexible devices. So far, over 8% of power conversion efficiency(PCE) has been reported for single-junction PSCs based on a conventional device structure. However, this kind of device structure is not stable for long-term application. Therefore, to solve this problem, novel strcutres especially inverted structure PSCs have received great intesets since it has potential higher device stability than that of devices based on a conventional structure. In this talk, efficient inverted PSCs with 8.4% of PCEs through interface modification will be presented. This result provides an important progress for solution-processed PSCs, and demonstrates that PSCs with an inverted device structure are comparable with PSCs with the conventional device structure.
