Journal of Nanoscience and Nanotechnology 2014-06-01

Application of solution-processed V2O5 in inverted polymer solar cells based on fluorine-doped tin oxide substrate.

Jian Wu, Yupeng Zhang, Yeyuan He, Chunyu Liu, Wenbin Guolt, Shengping Ruan

Index: J. Nanosci. Nanotechnol. 14(6) , 4214-7, (2014)

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Abstract

We used a hydrothermal method to synthesis the solution-processed V2O5 as anode buffer layer, which applied on inverted polymer solar cells based on FTO substrate. The structure of the device is glass/FTO/TiO2/P3HT:PCBM/V2O5/Ag. We discussed the dependence of device performance on the concentrations of V2O5 solution. It is found that when the concentration of V2O5 is 300 microg/ml, the power conversion efficiency (PCE of 2.38%) is the highest, which is much higher than that of the device without anode buffer layer (PCE of only 0.87%). Moreover, it can significantly reduce the energy consumption and make it more cost-effective.