MAPbBr 3 nanocrystals from aqueous solution for poly(methyl methacrylate)-MAPbBr 3 nanocrystal films with compression-resistant photoluminescence
MAPbBr 3 nanocrystals from aqueous solution for poly(methyl methacrylate)-MAPbBr 3 nanocrystal films with compression-resistant photoluminescence
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来自水溶液的 MAPbBr 3 纳米晶体用于具有抗压缩光致发光的聚（甲基丙烯酸甲酯）-MAPbBr 3 纳米晶体薄膜
DOI：
10.1088/1361-6528/ac59e8
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发表时间：
2022
期刊：
影响因子：
3.5
通讯作者：
Yang, Fuqian
中科院分区：
文献类型：
--
作者：
Tang, Xiaobing;Zhang, Yulin;Kothalawala, Nadeesha Lakmali;Wen, Xiyu;Kim, Doo Young;Yang, Fuqian
在这项工作中，我们开发了一种环保的方法来生产具有优异抗压PL特性的有机-无机杂化MAPbBr 3 （MA= ch3 nh3）钙钛矿纳米晶体（pens）和PMMA-MAPbBr 3 NC薄膜。用去离子水代替传统的有害有机溶剂合成mapbbr3粉末。由MAPbBr 3粉末制备的MAPbBr 3 pce具有高达93.86%的光致发光量子产率。在50℃和70℃环境中老化720 h后，由MAPbBr 3pce制成的聚甲基丙烯酸甲酯(PMMA)-MAPbBr 3nc膜分别保持了初始PL强度的97%和91%。与PMMA-CsPbBr 3 NC膜相比，PMMA-MAPbBr 3 NC膜在1.6 MPa的压缩应力下也表现出抗压缩的光致发光特性。PMMA-MAPbBr 3 NC薄膜与红色发光膜和蓝色发光源集成，实现了美国国家电视系统委员会（NTSC） 1953年标准色域约114%的LCD背光。
In this work, we develop an environmental-friendly approach to produce organic-inorganic hybrid MAPbBr 3 (MA= CH 3 NH 3) perovskite nanocrystals (PeNCs) and PMMA-MAPbBr 3 NC films with excellent compression-resistant PL characteristics. Deionized water is used as the solvent to synthesize MAPbBr 3 powder instead of conventionally-used hazardous organic solvents. The MAPbBr 3 PeNCs derived from the MAPbBr 3 powder exhibit a high photoluminescence quantum yield (PLQY) of 93.86%. Poly (methyl methacrylate)(PMMA)-MAPbBr 3 NC films made from the MAPbBr 3 PeNCs retain∼ 97% and∼ 91% of initial PL intensity after 720 h aging in ambient environment at 50 C and 70 C, respectively. The PMMA-MAPbBr 3 NC films also exhibit compression-resistant photoluminescent characteristics in contrast to the PMMA-CsPbBr 3 NC films under a compressive stress of 1.6 MPa. The PMMA-MAPbBr 3 NC film integrated with a red emissive film and a blue light emitting source achieves an LCD backlight of∼ 114% color gamut of National Television System Committee (NTSC) 1953 standard.