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Reversible Luminescence Photoswitching of Colloidal CsPbBr3 Nanocrystals Hybridized with a Diarylethene Photoswitch
journal contribution
posted on 2020-06-01, 21:31 authored by Ashkan Mokhtar, Ryuki Morinaga, Yuji Akaishi, Manami Shimoyoshi, Sunnam Kim, Seiji Kurihara, Tetsuya Kida, Tuyoshi FukaminatoPerovskite
lead halide quantum dots (QDs) have attracted much attention
because of their excellent optical properties such as high photoluminescence
(PL) quantum yields, narrow full width at half maximum (FWHM), and
tunability of emission color. The application of such materials in
optical memories and bioimaging requires a reversible PL switching
property. Here we report a reversible luminescence photoswitching
of QDs hybridized with an organic photochromic diarylethene (DAE)
photoswitch. A DAE derivative having triethoxysilane (TEOS) was synthesized
to add the luminescence-photoswitching property and to stabilize the
perovskite QDs by surface coverage. Such luminescent photoswitchable
QD systems have great potential for application in various optical
devices and luminescence probes for microscopic imaging.
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luminescence photoswitchingemission colorperovskite QDsFWHMReversible Luminescence Photoswitchingsurface coverageColloidal CsPbBr 3 Nanocrystals HybridizedDAEhalide quantum dotsapplicationquantum yieldsphotoswitchable QD systemsPLQDs hybridizedphotochromic diaryletheneDiarylethene Photoswitch Perovskiteluminescence probesTEOSluminescence-photoswitching property
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