Patent ID: 6307147
Filing Date: 2001-10-23
Classification: C07D,C09B,G03G,H01L,Y02E

Abstract:
A photovoltaic cell comprising a phthalocyanine layer comprising a compound of formula (I): ##STR8##whereinR.sub.2, R.sub.3, R.sub.9, R.sub.10, R.sub.16, R.sub.17, R.sub.23 and R.sub.24 are hydrogen;R.sub.1, R.sub.4, R.sub.8, R.sub.11, R.sub.15, R.sub.18, R.sub.22 and R.sub.25 are selected from the group consisting of hydrogen, fluorine, chlorine, methoxy, methyl, ethyl and cyano;R.sub.29 and R.sub.31 are both hydrogen or together are a metal ion having a single valence or a metal ion and non-metal ion or group bound to the metal ion; andR.sub.1, R.sub.4, R.sub.15, and R.sub.18 are the same, and are a first substituent, and R.sub.8, R.sub.11, R.sub.22, and R.sub.25 are the same and are a second substituent which is different from said first substituent; and a metallic conductive layer disposed in contact with said phthalocyanine layer to form a matched contact with a minimal resistance.