In the current situation of energy shortages,saving energy and reducing consumption are undoubtedly valid methods to relieve the pressure on resources.CsPbX3(X=Cl,Br,and I)perovskites as star inorganic materials have drawn growing attention owing to their unique properties,making them suitable for appli-cations such as light-emitting diodes(LEDs),solar cells,photodetectors,or lasers.This work presents zinc oxide(ZnO)induced self-crystallized CsPb(Br/I)3 perovskite with a 26％photoluminescence quantum yield(PLQY)prepared by the traditional melt-quenching method.Furthermore,the full width at half maximum(FWHM)(34-44 nm)can be regulated by the ZnO content.In addition,as a downconverter,CsPb(Br/I)3 perovskite nanocrystals(NCs)realize a bright red backlight that covers ≈ 94％Rec.2020 standards in the CIE 1931 color space and 126％of National Television System Committee(NTSC).This finding undoubtedly confirms an effective path for fabricating perovskite materials in a green,low-cost,and time-saving way,enriching the knowledge of glass crystallization mechanisms and promoting their applications in wide color gamut backlights.

Qin Wang;Yao Tong;Meiting Yang;Hangtao Ye;Xiaojuan Liang;Xin Wang;Weidong Xiang

College of Life and Environmental Science,Wenzhou University,Wenzhou 325035,China;College of Chemistry and Materials Engineering,Wenzhou University,Wenzhou 325035,China;College of Materials and Environmental Engineering,Hangzhou Dianzi University,Hangzhou 310012,China

材料科学技术（英文版）

[1]Qin Wang;Yao Tong;Meiting Yang;Hangtao Ye;Xiaojuan Liang;Xin Wang;Weidong Xiang-.ZnO induced self-crystallization of CsPb(Br/I)3 nanocrystal glasses with improved stability for backlight display application)[J].材料科学技术（英文版）,2022(26):140-147

downconverter,backlights

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