Photovoltaic Effects of Exciton Blocking Layer and Electrodes in Organic Semiconductor $CuPc/C_{60}$

$CuPc/C_{60}$을 이용한 유기 광기전 소자에서 엑시톤 억제층과 전극 변화에 따른 광기전 특성 연구

Photovoltaic effects in $CuPc/C_{60}$ heterojunction structure have been studied depending on thickness of exciton blocking layer(BCP) and electrodes. Bare ITO and polymer coated electrode(PEDOT:PSS) were used as an anode, and Al, Ca/Al, Mg/Al, LiF/Al, and LiAl were used as a cathode. Photovoltaic parameters depending on BCP layer thickness from 0 to 60 nm and electrodes having different work function were measured using Keithley 236 source-measure unit and a 500W xenon lamp (ORIEL 66021). We have seen that the BCP layer thickness severely affects on the performance of photovoltaic cells.