Effects of C 4 H 9 NH 3 Br additive on properties of CH 3 NH 3 PbBr 3 perovskite thin films

[摘要] Short-chain C 4 H 9 NH 3 Br compound can be used as the surface capping to synthesise CH 3 NH 3 PbBr 3 perovskite nanocrystal. In this work, employed as the surface ligand of CH 3 NH 3 PbBr 3 perovskite thin films, the influence of C 4 H 9 NH 3 Br additive on the morphology and optical properties of CH 3 NH 3 PbBr 3 thin films were studied systematically. As the doping ratio of C 4 H 9 NH 3 Br compound increases, the growth of CH 3 NH 3 PbBr 3 crystal grain can be controlled, and optical properties of CH 3 NH 3 PbBr 3 thin films can be improved. The best quality can be obtained with 20% of C 4 H 9 NH 3 Br. Finally, the optimal sintering conditions of CH 3 NH 3 PbBr 3 perovskite thin films are determined at 80°C, 4 min.

[学科分类] 计算机科学（综合）

[关键词] doping;sintering;nanostructured materials;thin films;organic compounds;CH3NH3PbBr3 perovskite nanocrystal;CH3NH3PbBr3 thin films;CH3NH3PbBr3 crystal grain;doping ratio;optical properties;sintering;temperature 80.0 degC;time 4.0 min