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Photochromic response of nanoparticles of spiropyran–MnPS3 intercalate: A search for optically bistable nanocomponents

Paper ID Volume ID Publish Year Pages File Format Full-Text
28346 44071 2007 5 PDF Available
Title
Photochromic response of nanoparticles of spiropyran–MnPS3 intercalate: A search for optically bistable nanocomponents
Abstract

Air-stable hybrid organic-inorganic nanoparticles comprising photochromic spiropyran (SP) species intercalated in layered MnPS3 were prepared by a microemulsion procedure in cyclohexane, using Brij-97 (polyoxyethylene-oleyl ether) surfactant. The nanoparticles (10–20 nm in size) were precipitated, purified and redispersed in water or organic solvents. Thin films of the nanoparticles were casted from organic solutions in the presence of polymer (PVP). Both the dispersed Mn1−xPS3(SP)2x nanoparticles and the film reversibly display fast colouration and bleaching processes upon UV and visible irradiation, respectively. The thermal relaxation of the merocyanine form (in the dark) appears to be considerably hindered by intercalation.

Keywords
MnPS3; Nanoparticles; Intercalate; Photochromic; Spiropyran
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Photochromic response of nanoparticles of spiropyran–MnPS3 intercalate: A search for optically bistable nanocomponents
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Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Photochemistry and Photobiology A: Chemistry - Volume 186, Issues 2–3, 25 February 2007, Pages 173–177
Authors
, , , , , ,
Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
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Price was $35.95
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Price after discount Only $4.95
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