Single-Component 0D Metal–Organic Halides with Color-Variable Long-Afterglow toward Multi-Level Information Security and White-Light LED

Tianhong Chen; Yu-Juan Ma; Dongpeng Yan

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Single-Component 0D Metal–Organic Halides with Color-Variable Long-Afterglow toward Multi-Level Information Security and White-Light LED

机译：Single-Component 0D Metal–Organic Halides with Color-Variable Long-Afterglow toward Multi-Level Information Security and White-Light LED

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摘要

The optical anti-counterfeiting science and technology are currently restrictedby the limited information loading capacity, and thus development of multileveland high-security systems is urgently needed but still challenging.Herein, anti-counterfeiting design strategies (including ASCII/5D codes anddynamic information storage) are reported by incorporation of abundantmulti-central luminescence and time-resolved, excitation-dependent ultralongphosphorescence. Self-assembly of new single-component 0D organic–inorganic metal halides (OIMHs) are facilely achieved, which exhibit divisibleultralong all-phosphorescence, thermally activated delayed fluorescence,and single-molecule white-light emission, as proved by experiments andtheoretical calculations. Interestingly, combing advantages of both inorganiccluster and π-conjugation in OIMHs, the time-dependent afterglow affordscolor-variable emission in a wide wavelength range larger than 100 nm,providing extra color-time dimensions for information encryption comparedto traditional single-color fluorescent anti-counterfeiting. Moreover, whitelight-emitting diode device is further developed to show high lighting abilityfor the single-component OIMH. Therefore, this study paves an effective wayto fabricate cluster-based single-component hybrids by equipping differentemitters to confer diverse photoluminescence manners and satisfy down-toearthapplication requirements.

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来源
《Advanced functional materials》 |2023年第18期|2214962.1-2214962.11|共11页
作者
Tianhong Chen; Yu-Juan Ma; Dongpeng Yan;
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作者单位

Beijing Key Laboratory of Energy Conversion and Storage Materialsand Key Laboratory of RadiopharmaceuticalsMinistry of EducationCollege of ChemistryBeijing Normal UniversityBeijing 100875, P. R. China;

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原文格式 PDF
正文语种英语
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关键词
afterglow; information security; organic–inorganic halides; room temperature phosphorescence; single-molecule white-light;

Single-Component 0D Metal–Organic Halides with Color-Variable Long-Afterglow toward Multi-Level Information Security and White-Light LED

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