一种硫醇/胺方法将金属氧化物转换为器件级金属硫属化物（英文）

A thiol-amine mixture for metal oxide towards device quality metal chalcogenides

利用分子前驱体溶液制备金属硫属化物薄膜在器件领域具有广泛的应用前景.本文利用巯基乙醇和乙醇胺这种新型硫醇/胺溶剂,溶解很多价格便宜的金属氧化物和氢氧化物,如Cu_2O, ZnO, SnO, In(OH)_3, GeO_2, Cd(OH)_2, MnO, PbO, Bi_2O_3, Sb_2O_3.通过添加硫脲和硒粉作为硫源和硒源后可以制得相应的二元金属硫化物、硒化物.此方法还可用来制备纯物相的带隙可调的三元CuSbSe_(2-x)Sx和四元Cu_2ZnSnSe_4.我们用这种方法合成的Sb_2S_3平面异质结太阳电池光电转化效率可高达到4.39%.这项研究提供了一种制备二元、三元、四元器件级金属硫属化物薄膜的普适性方法.

Metal chalcogenides (MCs) are significant semiconducting materials possessing a variety of applications in catalysts , thermoelectrics , rewritable memory, thin film transistors (TFTs), and solar cells, usually presenting as solid films. Until now, one can deposit the bulk materials on a substrate by either topdown method such as thermal evaporation or bottom-up deposition from molecular precursors. The latter approach, usually described as solution processing, allows low-energy, low-cost, high-speed and high-throughput manufacturing, and is compatible with a variety of substrates .