Journal of Photochemistry and Photobiology A: Chemistry 355 (2018) 451–456 Contents lists available at ScienceDirect Journal of Photochemistry and Photobiology A: Chemistry journal homepa ge: www.elsev ier.com/locate/jphotochem Invited feature article Two/multi-photon induced up-conversion emission of dicyanoisophorone derivative a,b a,b a,b, Zheng Gao , Qu Cong , Yi Chen Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, The Chinese Academy of Sciences, Beijing, 100190, China University of Chinese Academy of Sciences, Beijing, 100190, China A R T I C L E I N F O A B S T R A C T Article history: Two/multi-photon induced up-conversion emission based on an organic dye is described. Bis Received 23 May 2017 Accepted 26 June 2017 (dicyanoisophorone)-1,4-divinylbenzene (1) was synthesized by treatment of 2-(3,5,5-trimethylcyclo- Available online 28 June 2017 hex-2-en-1-ylidene)malononitrile and terephthalaldehyde. 1 exhibited strong aggregation-induced emission in solid state, and a large ﬂuorescent quantum yield (f = 63%) was obtained. 1 also exhibited Keywords: nonlinear optical property, a strong up-conversion emission was observed upon excitation with 800– Dicyanoisophorone derivative 1500 nm, and the quadratic dependence of the ﬂuorescence on the excitation laser intensity conﬁrmed Up-conversion emission the two/multi-photon process. Two-photon absorption © 2017 Elsevier
Journal of Photochemistry and Photobiology A: Chemistry – Elsevier
Published: Mar 15, 2018
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