Mechanism of charge accumulation of poly(heptazine imide) gel

Photo-stimuli response in materials is a fascinating feature with many potential applications. A photoresponsive gel of poly(heptazine imide), PHI, termed PHIG, exhibits photochromism, photoconductivity, and photo-induced charge accumulation, and is generated using ionic liquids and PHI. Although th...

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Bibliographic Details
Published in:Scientific reports 2021-09, Vol.11 (1), p.17833-17833, Article 17833
Main Authors: Seo, Goichiro, Saito, Yuki, Nakamichi, Miyu, Nakano, Kyohei, Tajima, Keisuke, Kanai, Kaname
Format: Article
Language:English
Subjects:
639/301/299/890
639/638/298/398
639/638/542/971
Accumulation
Humanities and Social Sciences
Ions
multidisciplinary
Science
Science (multidisciplinary)
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Summary:Photo-stimuli response in materials is a fascinating feature with many potential applications. A photoresponsive gel of poly(heptazine imide), PHI, termed PHIG, exhibits photochromism, photoconductivity, and photo-induced charge accumulation, and is generated using ionic liquids and PHI. Although there are several examples of ionic liquid gels that exhibit photochromism and photoconductivity, this is the first report of an ionic liquid gel that exhibits both these properties as well as charge accumulation. We conducted experimental and theoretical investigations to understand the mechanism of the photostimulus response of PHIG, especially charge accumulation. The proposed model explains both the mechanism of charge accumulation and dark photocatalysis by PHI and provides new concepts in the field of photofunctional materials.
ISSN:2045-2322
2045-2322
DOI:10.1038/s41598-021-97025-9