无机材料学报2025，Vol.40Issue(4)：372-378,中插5-中插7,10.DOI:10.15541/jim20240319
甲脒亚磺酸添加剂提升Sb2(S,Se)3薄膜质量及其光伏性能
Photovoltaic Performance of Sb2(S,Se)3 Film Enhanced by Addition of Formamidinesulfinic Acid
摘要
Abstract
In recent years,Sb2(S,Se)3 has been considered a promising photovoltaic material due to its excellent photovoltaic properties.However,the highest reported photoelectric conversion efficiency(PCE)of Sb2(S,Se)3 solar cells still lags far behind its theoretical PCE limit,partly due to severe carrier recombination in Sb2(S,Se)3 films.In this study,a process additive,formamidinesulfinic acid(FSA),was introduced into the precursor solution of Sb2(S,Se)3 by hydrothermal deposition method.The additive FSA not only optimizes(211)and(221)orientations as well as Se/S atomic ratio of Sb2(S,Se)3 films,but also reduces Sb2O3 content of carrier recombination center in the films.The dark saturation current density(J0)and recombination resistance(Rrec)values of the solar cell with FSA are 1.1 0×1 0-5 mA·cm-2 and 3147 Ω·cm-2,respectively,which are significantly better than those of reference device(5.17×10-5 mA·cm-2 and 974.3 Ω·cm-2),indicating that the carrier recombination loss of Sb2(S,Se)3 solar cell is restricted.Under AM 1.5G,the mean values of open circuit voltage(VOC),short circuit current density(JSC),fill factor(FF),and PCE for the solar cell with FSA are 0.69 V,18.46 mA·cm-2,63.60％,and 8.04％,respectively,showing significant improvement compared to reference device(0.67 V,17.82 mA cm-2,62.27％,and 7.70％).The best device contributes the highest PCE of 8.21％,and this unpackaged device maintains 82.1％of its initial efficiency after a 120 d aging test in air.关键词
Sb2(S,Se)3/添加剂/甲脒亚磺酸/载流子复合/太阳能电池Key words
Sb2(S,Se)3/additive/formamidinesulfinic acid/carrier recombination/solar cell分类
化学工程引用本文复制引用
倪晓萌,许方贤,刘静静,张帅,郭华飞,袁宁一..甲脒亚磺酸添加剂提升Sb2(S,Se)3薄膜质量及其光伏性能[J].无机材料学报,2025,40(4):372-378,中插5-中插7,10.基金项目
江苏省自然科学基金(BK20220624)Natural Science Foundation of Jiangsu Province(BK20220624) （BK20220624）
