典型文献
Morphology Engineering toward Highly Emissive Mn2+Doped PEA2PbBr4 Perovskite with Their LED Application via Phospho-nium Passivation
文献摘要：
Mn2+-doped lead halide perovskites either in 3D or 2D have been extensively explored due to their rich energy-transfer behaviors.While their application on LED is still lagging behind in comparison to non-doped 3D perovskite due to inferior film-formation and low luminescent efficiency.Here we report an in-situ-formed Mn2+doped 2D perovskite nanocrystal(NCs)film by introducing quaternary phosphonium salt during the crystalliz-ing process.The as-formed film shows improved luminescent efficiency with emission peaked at 600 nm and photoluminescence quantum yield(PLQY)of as high as 73.37％,which is about 1.3 times higher than that of pristine film.Further characterizations confirm the enhanced confinement effect from smaller size particle is responsible for the improved luminescent efficiency.The perovskite LEDs based on pristine and phosphonium passiv-ated thin films were fabricated,and a great improvement in the external quantum efficiency of these LEDs(from 0.0017％to 0.12％)is ob-served due to the improved morphology and enhanced luminescent efficiency.
文献关键词：
中图分类号：
作者姓名：
Yu-Feng Sang;Liang-Jin Xu;Zhong-Ning Chen
作者机构：
State Key Laboratory of Structural Chemistry,Fujian Institute of Research on the Structure of Matter,Chinese Academy of Sciences,Fuzhou 350002,China;School of Physical Science and Technology,ShanghaiTech University,Shanghai 201210,China;Fujian Science&Technology Innovation Laboratory for Optoelectronic Information of China,Fuzhou 350108,China
文献出处：
引用格式：
[1]Yu-Feng Sang;Liang-Jin Xu;Zhong-Ning Chen-.Morphology Engineering toward Highly Emissive Mn2+Doped PEA2PbBr4 Perovskite with Their LED Application via Phospho-nium Passivation)[J].结构化学,2022(05):70-76
A类：
Mn2+Doped,PEA2PbBr4,Mn2+doped,crystalliz,passiv
B类：
Morphology,Engineering,toward,Highly,Emissive,Perovskite,Their,Application,via,Phospho,Passivation,lead,halide,perovskites,either,2D,have,been,extensively,explored,due,their,rich,energy,transfer,behaviors,While,application,still,lagging,behind,comparison,inferior,formation,low,luminescent,efficiency,Here,report,situ,formed,nanocrystal,NCs,by,introducing,quaternary,phosphonium,salt,during,process,shows,improved,emission,peaked,photoluminescence,quantum,yield,PLQY,which,about,times,higher,than,that,pristine,Further,characterizations,confirm,enhanced,confinement,effect,from,smaller,size,particle,responsible,LEDs,thin,films,were,fabricated,great,improvement,external,these,ob,served,morphology
AB值：
0.560316
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