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eSynthesis, self-assembly and nonlinear optical activity of selenium-annulated perylene diimide

Guo-Bin Huang,Lei Shen,Jie Liu,Wen-Fa Zhou,Kaspars Traskovskis,Ying-Lin Song,Wei Jiang,Zhao-Hui Wang,Xiang-Kui Ren

CHEMICAL COMMUNICATIONS（2020）

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Abstract
A novel Se-annulated perylene diimide derivative tethered with polyhedral oligosilsesquioxane (POSS) nanoparticles (POSS-2SePDI-POSS) was designed and prepared. The introduction of selenium atoms endows POSS-2SePDI-POSS with significant fluorescence quenching but enhanced excited-state absorption. As a result, POSS-2SePDI-POSS exhibits a distinct reverse saturable absorption characteristic, suggesting its potential application in optical limiting.
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