Abstract
An approach for improving the photoelectrical conversion efficiency of hetero-junction solar cells based on lead phthalocyanine, by incorporating cupper phthalocyanine with co-evaporation technique into the active layer has been reported in this work, the effect of adding cupper phthalocyanine (CuPc) have been studied. The morphological, optical, and electrical properties of PbPc active layer and blend have been reported. Atomic force microscope study shows a change in the roughness, UV-VIS Spectroscopy revealed that the absorbance of PbPc films increases in the blend case and has a main Q-band at wavelength 748 nm and the electrical study showed a change in (I–V) characteristics, the photoelectrical conversion efficiency (PCE) of solar cells increases. The photovoltaic parameters are discussed based on the morphology and optical variation of the active layers.
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