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- W2893511230 endingPage "1801187" @default.
- W2893511230 startingPage "1801187" @default.
- W2893511230 abstract "Mechanochromic luminescent materials have attracted much attention and present a variety of applications in information security, data recording, and storage devices. However, most of these smart luminescent systems are based on typical fluorescence and/or phosphorescence mechanisms; the mechanochromic delayed fluorescence (MCDF) materials involving switching singlet and triplet states are rarely studied to date. Herein, new 2D layered metal–organic micro/nanosheets, [Cd(9-AC)2(BIM)2] (named as MCDF-1; 9-AC = anthracene-9-carboxylate and BIM = benzimidazole) and its solvate form containing interlayer CH3CN (named as MCDF-2), which exhibit reversible mechanochromic delayed fluorescence characteristics, are presented. With applying the mechanical force, the luminescent center of MCDF-1 can be converted from 9-AC/BIM exciplex to 9-AC/9-AC excimer, resulting in alternations of delayed fluorescence. Such luminescent change can be further recovered by CH3CN fumigation, accompanied by the structural transformation from MCDF-1 to MCDF-2. Furthermore, the force-responsive process also refers to the energy redistribution between singlet and triplet states as inferred by both temperature-dependent photophysics and theoretical calculations. Therefore, this work not only develops new 2D micro/nanosheets as MCDF materials, but also supplies a singlet–triplet energy switching mechanism on their reversible mechanochromic process." @default.
- W2893511230 created "2018-10-05" @default.
- W2893511230 creator A5003402944 @default.
- W2893511230 creator A5022523766 @default.
- W2893511230 creator A5026595774 @default.
- W2893511230 creator A5031827918 @default.
- W2893511230 creator A5060021689 @default.
- W2893511230 date "2018-09-27" @default.
- W2893511230 modified "2023-10-14" @default.
- W2893511230 title "Reversible Mechanochromic Delayed Fluorescence in 2D Metal-Organic Micro/Nanosheets: Switching Singlet-Triplet States through Transformation between Exciplex and Excimer" @default.
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- W2893511230 doi "https://doi.org/10.1002/advs.201801187" @default.
- W2893511230 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/6247076" @default.
- W2893511230 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/30479939" @default.
- W2893511230 hasPublicationYear "2018" @default.
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