Effects of different alkyl chain-length CnH2n+1NH3Br additions on the properties of CH3NH3PbBr3 perovskite thin films
Effects of different alkyl chain-length CnH2n+1NH3Br additions on the properties of CH3NH3PbBr3 perovskite thin films
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不同烷基链长CnH2n 1NH3Br添加量对CH3NH3PbBr3钙钛矿薄膜性能的影响
DOI：
10.1016/j.optmat.2020.110127
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发表时间：
2020-09
影响因子：
3.9
通讯作者：
Daocheng Pan
中科院分区：
文献类型：
--
作者：
Yanchun Yang;Daocheng Pan
采用不同链长的CnH_2n+1NH_3Br(n=1)添加剂作为表面配位体，系统地研究了CH_3NH_3PbB_3钙钛矿薄膜的形貌和光学性质。随着前驱体溶液中CnH_2n+1NH_3B_3化合物烷基链长的增加，CH3NH_3PbB_3晶体的尺寸减小，相应的薄膜形貌变好，光致发光(PL)谱峰位置蓝移。在前驱体溶液中加入C4H9NH3Br可以得到最佳的CH3NH3PbBr3钙钛矿薄膜，这归功于(C4H9NH3)2PbBr4材料的优异性能。
Employed the different chain length CnH2n+1NH3Br (n > 1) additives as the surface ligand, we have studied the morphology and optical properties of CH3NH3PbBr3perovskite thin films systematically. As the alkyl chain-length of incorporated CnH2n+1NH3Br compound into the precursor solution increases, the sizes of CH3NH3PbBr3crystal decrease, leading that the morphology of the corresponding films get better and the peak positions of photoluminescence (PL) spectra shift-blue. And the best CH3NH3PbBr3perovskite thin films can be obtained with the C4H9NH3Br addition in the precursor solution, which is attributed to the excellent properties of (C4H9NH3)2PbBr4material.
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