Easy and green preparation of a graphene–TiO2 nanohybrid using a supramolecular biomaterial consisting of artificially bifunctionalized proteins and its application for a perovskite solar cell

Yuki Hashima; Yasuaki Ishikawa; Itaru Raifuku; Ippei Inoue; Naofumi Okamoto; Ichiro Yamashita; Tsuyoshi Minami; Yukiharu Uraoka

doi:10.1039/C8NR04441D

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Easy and green preparation of a graphene–TiO₂ nanohybrid using a supramolecular biomaterial consisting of artificially bifunctionalized proteins and its application for a perovskite solar cell†

Yuki Hashima,^a Yasuaki Ishikawa,

*^a Itaru Raifuku,^a Ippei Inoue,^b Naofumi Okamoto,^a Ichiro Yamashita,^a Tsuyoshi Minami

^c and Yukiharu Uraoka^a

Author affiliations

* Corresponding authors

^a Graduate School of Materials Science, Nara Institute of Science and Technology, 8916-5 Takayama, Ikoma, Nara, Japan
E-mail: yishikawa@ms.naist.jp

^b Frontier Research Labs., Institute for Innovation, Ajinomoto Co., Inc., 1-1, Suzuki-cho, Kawasaki-ku, Kawasaki-shi, Kanagawa, 210-8681 Japan

^c Institute of Industrial Science, The University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo 153-8505, Japan

Abstract

We report a novel preparation method for a graphene/TiO₂ nanohybrid using a supramolecular biomaterial (CDT1). CDT1 can offer an increase in the dispersibility of graphene in water and subsequent complexation of graphene and TiO₂. This nanohybrid was applied to a perovskite solar cell and success was achieved in improving its photoelectric conversion efficiency.

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Article information

DOI: https://doi.org/10.1039/C8NR04441D
Article type: Communication
Submitted: 01 Jun 2018
Accepted: 09 Aug 2018
First published: 10 Aug 2018

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Nanoscale, 2018,10, 19249-19253

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Easy and green preparation of a graphene–TiO₂ nanohybrid using a supramolecular biomaterial consisting of artificially bifunctionalized proteins and its application for a perovskite solar cell

Y. Hashima, Y. Ishikawa, I. Raifuku, I. Inoue, N. Okamoto, I. Yamashita, T. Minami and Y. Uraoka, Nanoscale, 2018, 10, 19249 DOI: 10.1039/C8NR04441D

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