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Suzuki Yasutaka

Affiliate Master Yamaguchi University

Clay–organic hybrid films exhibiting reversible fluorescent color switching induced by swelling and drying of a clay mineral

The Journal of Physical Chemistry C Volume 120 Issue 41 Page 23813-23822
published_at 2016-09-30
2022-5-18-16-492_280913revised manuscript.pdf
[fulltext] 4.46 MB
Title
Clay–organic hybrid films exhibiting reversible fluorescent color switching induced by swelling and drying of a clay mineral
Abstract
The interlayer space of clays is an interesting microenvironment to control the properties of included organic materials. In this study, chromic hybrid films consisting of synthetic saponite (SSA) and fluorescent organic molecules with planar p-conjugated systems were fabricated. The hybrid films exhibited reversible fluorescence color switching induced by swelling and drying, which caused the gallery height of SSA to change. Ultraviolet–visible absorption, steady-state and time-resolved fluorescence measurements of the hybrid films strongly suggested that the organic molecules formed an excimer in the swollen interlayer space of SSA, while they were a monomer in the dried interlayer space. The different emission wavelengths of the excimer and monomer resulted in the fluorescence color switching of the hybrid films. The reversibility of the color switching was maintained for at least 50 cycles with no change of fluorescence maxima. These chromic hybrid films represent a novel approach to obtain color switching.
Creators Tominaga Makoto
Creators Oniki Yudai
Creators Mochida Shuhei
Creators Kasatani Kazuo
Affiliate Master Yamaguchi University
[kakenhi]15501 grid.268397.1
Creators Tani Seiji
Affiliate Master Yamaguchi University
[kakenhi]15501 grid.268397.1
Creators Suzuki Yasutaka
Affiliate Master Yamaguchi University
[kakenhi]15501 grid.268397.1
Creators Kawamata Jun
Affiliate Master Yamaguchi University
[kakenhi]15501 grid.268397.1
Source Identifiers [PISSN] 1932-7447 [EISSN] 1932-7455
Languages eng
Resource Type journal article
Publishers American Chemical Society
Date Issued 2016-09-30
Rights
This document is the Accepted Manuscript version of a Published Work that appeared in final form in The Journal of Physical Chemistry C, copyright ©American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see https://doi.org/10.1021/acs.jpcc.6b07537()
File Version Accepted Manuscript
Access Rights open access
Relations
[isVersionOf] https://doi.org/10.1021/acs.jpcc.6b07537
Funding Refs
Japan Society for the Promotion of Science [crossref_funder]https://doi.org/10.13039/501100001691
Award 無機ナノシート層間に取り込まれた有機化合物の光の放射圧による回転の制御 15J07557
Funding Refs
Japan Society for the Promotion of Science [crossref_funder]https://doi.org/10.13039/501100001691
Award Photodegradation of Organic Dyes Adsorbed on the Surface of a Clay Mineral 23510116