Performance of hybrid solar cell with blend of P3HT and Spiro-OMeTAD as photoactive layer

Abstract

In order to reduce the charge recombination and improve the performance of hybrid solar cells, the mixture of P3HT and Spiro-OMeTAD is used as the photoactive layer and hole-transport layer, and is spun onto TiO2 nanorod/Sb2S3 nanoparticles composite film to prepare a hybrid solar cell. By means of SEM, UV visible absorption spectrum, XRD, electrochemical impedance spectroscopy, and steady-state fluorescence spectrum and J-V curve, the microstructure and photovoltaic performance of the hybrid solar cell are characterized and tested. The results show that the hybrid solar cell with the mixture ratio of P3HT and Spiro-OMeTAD of 15 mg/1 mL has a lower charge recombination rate, a longer electron life and the power conversion efficiency is 4.57%.The prepared hybrid solar cell has excellent performance and good application prospect.

Keywords

• electrochemistry; tio2 nanorods; sb2s3 nanoparticles; hybrid solar cells; hole-transport materials