The quaternary chalcogenide halides of group IV and V elements have attracted much attention due to their interesting semiconducting properties as well as a suitable band gap for solar cells. Here, for the first time, we report on solar cells using tin-antimony sulfoiodide (Sn₂SbS₂I₃). Sn₂SbS₂I₃ solar cells were fabricated using a chemical single-step deposition process with a solution containing a SbCl₃-thiourea complex and SnI₂ with the configuration of TiO₂ and poly[2,6-(4,4-bis(2-ethylhexyl)-4H-cyclopenta[2,1-b;3,4-b′]dithiophene)-alt-4,7-(2,1,3-enzothiadiazole)] as the electron- and hole-transporting layers, respectively. The best-performing cell exhibits a power conversion efficiency of 4.04% under the illumination of standard AM 1.5G conditions (100 mW cm⁻²). These unencapsulated cells exhibited good stabilities at 80% relative humidity, 85°C in air, and under illumination, respectively. These results provide guidelines for fabrication of lead-free heteroleptic perovskite solar cells by hosting divalent or combinations of monovalent and trivalent metal cations.

IV和V族元素的季硫族卤化物因其有趣的半导体性能以及适合于太阳能电池的带隙而备受关注。在这里，我们首次报道了使用锡-锑磺酰亚胺（Sn ₂ SbS ₂ I ₃）的太阳能电池。锡_2周的SbS _2个我₃太阳能电池利用化学单步沉积工艺与含有的SbCl的溶液制造₃ -硫脲络合物和SNI ₂与TiO 2的配置₂和聚[2,6-（4,4-双（2-乙基己基）-4H-环戊[2,1-b; 3,4-b']二噻吩）-alt-4,7-（2,1， 3-enzothiadiazole）]分别作为电子和空穴传输层。性能最佳的电池在标准AM 1.5G条件（100 mW cm ^-2）的照明下表现出4.04％的功率转换效率。这些未封装的电池分别在80％相对湿度，空气中85°C和光照下表现出良好的稳定性。这些结果提供了通过容纳二价或一价和三价金属阳离子的组合而制造无铅杂钙钛矿型太阳能电池的指南。