Molecular Crystals and Liquid Crystals, Vol.581, No.1, 13-17, 2013
Junction Formation by Doping in H2Pc:C-60 Co-Evaporated Films for Solar Cell Application
pn-control for the co-evaporated films were successfully accomplished. By V2O5-doping or Cs2CO3-doping, Fermi levels (E-F) of metal-free phthalocyanine:fullerene (H2Pc:C-60) co-evaporated films positively or negatively shifted, suggesting that whole co-evaporated film behaved as p-type or n-type, respectively. A series of junction such as Schottky junction and pn-homojunction were formed by doping in H2Pc:C-60 co-evaporated films (1:1).