Implications of interfacial electronics to performance of organic photovoltaic devices

Abstract

It is widely known that electronic structures of metal/organic semiconductors and organic-organic interfaces have significant influences on performance of organic light-emitting devices. However, relatively little works have been done on their influences on organic photovoltaic devices. In this chapter, effects of deposition condition, deposition sequence, and substrate work function in controlling the energy level alignment between copper phthalocyanine and fullerene are introduced. In addition, effects of metal doping on the exciton blocker/cathode interface are summarized. Implications of these changes in interfacial electronic structures to the performance of OPV devices are discussed. © Springer-Verlag Berlin Heidelberg 2010.