Enhanced photocurrent and stability of organic solar cells using solution-based TSCuPc interfacial layer

International audienceCopper phthalocyanine-3,4′,4″,4‴ tetra-sulfonated acid tetrasodium salt (TS-CuPc) are promising interfacial materials fororganic photovoltaics (OPVs) because of their electrical properties, solution process ability and stability. In this article,we report the fabrication of poly(3-hexylthiophene):[6,6]-phenyl-C61 butyric acid methyl ester (P3HT:PCBM) OPV devicesincorporating solution-based TS-CuPc as electron transport layers that show promising enhancements of the devicephotocurrent and stability. We also discuss the impact of the mechanism of Photochemical and photophysical behaviorand all parameters on device performance as well as the ambient degradation of these devices. In these results we showedcharge extraction improvement by the use of the TS-CuPc