P3HT和Spiro-OMeTAD共混物作为光活性层的杂化太阳电池性能

为降低电荷复合率,提高杂化太阳电池的性能,将P3HT与Spiro-OMeTAD共混后的混合物作为光活性层和空穴传输层,旋涂在Sb_2S_3纳米粒子敏化的TiO_2纳米棒(TiO_2NR/Sb_2S_3)复合膜上,制备成杂化太阳电池。通过SEM、紫外可见吸收光谱、XRD、电化学阻抗图谱、稳态荧光光谱、J-V曲线等手段,对杂化太阳电池的微观结构、光电转换特性进行了表征和测试。结果表明:P3HT与Spiro-OMeTAD共混物比例为15 mg/1 mL时,得到结构为FTO/TiO_2NR/Sb_2S_3/P3HT:Spiro-OMeTAD/Ag杂化太阳电池的电荷负荷率低,电子生命长,能量转换效率达到了4.57%。所制备的杂化太阳电池性能优良,具有良好的应用前景。

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

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.