Photovoltaic performance of a Schottky barrier phthalocyanine binder layer solar cell was studied, together with NO2
adsorption influence on performance. A phthalocyanine layer was prepared on an indium tin oxide (ITO) glass substrate by spin coating, and a semitransparent aluminum electrode was vacuum-deposited on the phthalocyanine layer. Copper phthalocyanine (CuPc) was used as a photoactive particulate semiconductor, polyvinylidene fluoride (PVdF) a polymer binder and N, N-dimethylacetamide (N, N-DMA) as a solvent. The CuPc solar cell showed good rectifying characteristics in the dark and photovoltaic effects under light illumination. The photovoltaic performance of the solar cell was improved by NO2
adsorption onto the CuPc layer, attributable to increased carrier (hole) lifetime caused by the NO2
adsorption capturing electrons. However, NO2
adsorption promotes oxidation of the aluminum electrode and deteriorates the Schottky barrier between the CuPc layer and aluminum electrode, deteriorating the solar cell's photovoltaic performance.