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摘要:
Three-primary-color luminescent materials are highly desirable to construct white-light emitting resource,multi-color optical displays,and tunable photonic applications.However,the efficient strategy to establish the three-primary-color systems with unique photofunctionalities is still rather limited,particularly for molecular materials.Herein,we developed a molecular cocrystal route to obtain three-primary-color emissive materials by tuning different donor-acceptor units based on the same chromophore(4,4'-bis(2,5-dimethylstyryl)biphenyl,Bdb).The warm and cold white-light together with multi-color emission in most of visible region can be highly adjusted by rationally tuning different mixture components of three-primary-color cocrystals through an energy transfer mechanism.Furthermore,the blue/green/red emitters endow Bdb molecular cocrystals novel color-tunable photonic properties(such as one-dimensional(1D)/2D optical waveguide,polarized fluorescence,up-conversion lu-minescence,and amplified spontaneous emission),benefitting from their well-defined micro/nanostructures and high crystal-linity.Particularly,the high luminescence quantum yield(82.49%)and polarized anisotropy(0.723)outperform most of state-of-the-art molecular crystalline materials.Therefore,this work supplies an effective way to fabricate new types of three-primary-color phosphors through luminescent cocrystals,which have promising applications in the fields of full-color displays,white-light irradiation,low-dimensional optical polarization,and micro/nanophotonics.
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篇名 Three-primary-color molecular cocrystals showing white-light luminescence,tunable optical waveguide and ultrahigh polarized emission
来源期刊 中国科学:化学(英文版) 学科
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年,卷(期) 2022,(2) 所属期刊栏目 ARTICLES
研究方向 页码范围 408-417
页数 10页 分类号
字数 语种 英文
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中国科学:化学(英文版)
月刊
1674-7291
11-5839/O6
16开
北京东黄城根北街16号
1950
eng
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4060
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总被引数(次)
11421
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