Issue 2, 2022
From the journal:

Materials Advances

Photochromic behavior of diarylbenzene nanoparticles prepared by top-down and bottom-up approaches†

Shota Hamatani, ORCID logo a   Daichi Kitagawa, ORCID logo *a   Rikuto Maegawaa  and  Seiya Kobatake ORCID logo *a  

* Corresponding authors

a Department of Applied Chemistry, Graduate School of Engineering, Osaka City University, 3-3-138 Sugimoto, Sumiyoshi-ku, Osaka 558-8585, Japan
E-mail: kitagawa@osaka-cu.ac.jp, kobatake@a-chem.eng.osaka-cu.ac.jp
Fax: +81 6 6605 2797
Tel: +81 6 6605 2797

Abstract

The use of photochromic molecules as active elements in aggregates is very important for developing advanced materials in the next generation. The nanoparticle is one of the aggregate forms and has been attracting much attention due to not only the ease of preparation but also the characteristic photoswitching properties. In this work, we fabricated nanoparticles composed of a photochromic diarylbenzene by both ball-milling and reprecipitation methods and investigated their photochromic behaviors. The nanoparticles made by the ball-milling method had crystallinity, while those made by the reprecipitation method were amorphous. Both nanoparticles exhibited reversible T-type photochromic behavior, but the kinetics of the thermal back reaction depended on the state of the nanoparticles. The results in this study provide a convenient and useful way to prepare nanoparticles with different thermal back reactivity from one molecule.

Graphical abstract: Photochromic behavior of diarylbenzene nanoparticles prepared by top-down and bottom-up approaches

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Article information

DOI
https://doi.org/10.1039/D1MA00972A
Article type
Paper
Submitted
20 Oct 2021
Accepted
10 Dec 2021
First published
14 Dec 2021
This article is Open Access
Creative Commons BY-NC license

Mater. Adv., 2022,3, 1280-1285

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Photochromic behavior of diarylbenzene nanoparticles prepared by top-down and bottom-up approaches

S. Hamatani, D. Kitagawa, R. Maegawa and S. Kobatake, Mater. Adv., 2022, 3, 1280 DOI: 10.1039/D1MA00972A

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