Charge Carrier Photogeneration and Transport in Phthalocyanine/Perylene Thin Film Solar Cells

Abstract

Photoeffects in Phthalocyanine and Perylene thin films and Phthalocyanine/Perylene hetero-p/n- and Perylene/Au Schottky-cells were investigated in wavelength, temperature and intensity dependent measurements. It is concluded that the charge carrier generation occurs only in a small region near or at ap/n- or Schottky type contact whereas the photoconductivity is a true bulk effect. Both type of photoeffects experience their own recombination processes leading to different intensity dependences.