无机材料学报2016，Vol.31Issue(3)：263-268,6.DOI:10.15541/jim20150342
SnS掺杂对P3HT/PCBM体系太阳能电池光电特性的影响研究
Effects of SnS Doping on Photovoltaic Performance of P3HT:PCBM Multilayer Heterojunction Solar Cells
摘要
Abstract
SnS was deposited on the surface of FTO/TiO2 electrodes with different molar concentration ratio of Sn2+ and S2- using successive ionic layer absorption and reaction (SILAR) method. Afterwards, the as-prepared TiO2/SnS compos-ite electrode was assembled into a multilayer heterojunction solar cell with an architecture of FTO/TiO2/SnS/ P3HT:PCBM/Ag. The TiO2/SnS composite films were characterized by scanning electron microscopy (SEM), Raman spectra analysis and Glow discharge optical emission spectrometer (GD-OES). The photovoltaic performance of solar cells were determined using UV-Vis spectra and I-V curves. Results showed that incorporation of SnS significantly im-proved the short-circuit current of the multilayer heterojunction solar cells. Meanwhile, the dependence of the photo-voltaic performance of solar cells on the molar concentration ratio of Sn2+/S2- was investigated systematically. During the SILAR processes, a series of electrodes were prepared in the precusor solutions with different Sn2+/S2- molar concentra-tion ratios (n(Sn2+):n(S2-)= 1:1, 1:1.25, 1:1.5, 1:1.75 and 1:2). Moreover, GD-OES method distinguished the effects of Sn2+/S2- ratio on the SnSx layer deposition. It was found that the Sn2+/S2- ratio of SILAR precursors, dominated by thick-ness and chemical composition of SnSx, affected photovoltaic performance of the solar cells significantly.I-V test results testified that the ratio of Sn2+/S2- molar concentration was optimized at 1:1.5, which resulted in the highest photoelectric conversion efficiency. The open-circuit voltage (Voc), short-circuit current density (Jsc), fill factor (FF), and power conver-sion efficiency (PCE) reached 0.373 V, 1.92 mA/cm2, 51.2%, and 0.369%, respectively.关键词
太阳能电池/连续离子层吸附反应/硫化亚锡/多层异质结Key words
solar cells/SILAR/SnS/multilayer heterojunction分类
化学化工引用本文复制引用
陆冠宏,赵新洛,王焱,朱书影,孙静,谢晓峰..SnS掺杂对P3HT/PCBM体系太阳能电池光电特性的影响研究[J].无机材料学报,2016,31(3):263-268,6.基金项目
国家自然科学基金(51102264) （51102264）
广东省中国科学院全面战略合作专项基金(2013B091100002) National Natural Science Foundation of China (51102264) （2013B091100002）
Strategic Cooperation Project of Chinese Academy of Sciences and Guangdong Government (2013B091100002) （2013B091100002）
