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首页> 外文期刊>Nanotechnology >MAPbBr(3) nanocrystals from aqueous solution for poly(methyl methacrylate)-MAPbBr(3) nanocrystal films with compression-resistant photoluminescence
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MAPbBr(3) nanocrystals from aqueous solution for poly(methyl methacrylate)-MAPbBr(3) nanocrystal films with compression-resistant photoluminescence

机译：MAPbBr(3) nanocrystals from aqueous solution for poly(methyl methacrylate)-MAPbBr(3) nanocrystal films with compression-resistant photoluminescence

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摘要

In this work, we develop an environmental-friendly approach to produce organic-inorganic hybrid MAPbBr(3) (MA = CH3NH3) 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 similar to 97% and similar to 91% of initial PL intensity after 720 h aging in ambient environment at 50 degrees C and 70 degrees C, respectively. The PMMA-MAPbBr(3) NC films also exhibit compression-resistant photoluminescent characteristics in contrast to the PMMA-CsPbBr3 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 similar to 114% color gamut of National Television System Committee (NTSC) 1953 standard.

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