Biotemplated Synthesis of TiO 2 -Coated Gold Nanowire for Perovskite Solar Cells

Ippei Inoue, Yuki Umemura, Itaru Raifuku, Kenichi Toyoda, Yasuaki Ishikawa, Seigo Ito, Hisashi Yasueda, Yukiharu Uraoka, Ichiro Yamashita

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Fibrous nanomaterials have been widely employed toward the improvement of photovoltaic devices. Their light-trapping capabilities, owing to their unique structure, provide a direct pathway for carrier transport. This paper reports the improvement of perovskite solar cell (PSC) performance by a well-dispersed TiO 2 -coated gold nanowire (GNW) in a TiO 2 cell layer. We used an artificially designed cage-shaped protein to synthesize a TiO 2 -coated GNW in aqueous solution under atmospheric pressure. The artificially cage-shaped protein with gold-binding peptides and titanium-compound-biomineralizing peptides can bind GNWs and selectively deposit a thin TiO 2 layer on the gold surface. The TiO 2 -coated GNW incorporated in the photoelectrodes of PSCs increased the external quantum efficiency within the range of 350-750 nm and decreased the internal resistance by 12%. The efficient collection of photogenerated electrons by the nanowires boosted the power conversion efficiency by 33% compared to a typical mesoporous-TiO 2 -nanoparticle-only electrode.

Original languageEnglish
Pages (from-to)5478-5485
Number of pages8
JournalACS Omega
Volume2
Issue number9
DOIs
Publication statusPublished - 2017 Jan 1

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Gold
Nanowires
Peptides
Titanium compounds
Proteins
Carrier transport
Quantum efficiency
Nanostructured materials
Conversion efficiency
Atmospheric pressure
Deposits
Cells
Perovskite solar cells
Nanoparticles
Electrodes
Electrons

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Chemical Engineering(all)

Cite this

Inoue, I., Umemura, Y., Raifuku, I., Toyoda, K., Ishikawa, Y., Ito, S., ... Yamashita, I. (2017). Biotemplated Synthesis of TiO 2 -Coated Gold Nanowire for Perovskite Solar Cells ACS Omega, 2(9), 5478-5485. https://doi.org/10.1021/acsomega.7b00940
Inoue, Ippei ; Umemura, Yuki ; Raifuku, Itaru ; Toyoda, Kenichi ; Ishikawa, Yasuaki ; Ito, Seigo ; Yasueda, Hisashi ; Uraoka, Yukiharu ; Yamashita, Ichiro. / Biotemplated Synthesis of TiO 2 -Coated Gold Nanowire for Perovskite Solar Cells In: ACS Omega. 2017 ; Vol. 2, No. 9. pp. 5478-5485.
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Inoue, I, Umemura, Y, Raifuku, I, Toyoda, K, Ishikawa, Y, Ito, S, Yasueda, H, Uraoka, Y & Yamashita, I 2017, ' Biotemplated Synthesis of TiO 2 -Coated Gold Nanowire for Perovskite Solar Cells ', ACS Omega, vol. 2, no. 9, pp. 5478-5485. https://doi.org/10.1021/acsomega.7b00940

Biotemplated Synthesis of TiO 2 -Coated Gold Nanowire for Perovskite Solar Cells . / Inoue, Ippei; Umemura, Yuki; Raifuku, Itaru; Toyoda, Kenichi; Ishikawa, Yasuaki; Ito, Seigo; Yasueda, Hisashi; Uraoka, Yukiharu; Yamashita, Ichiro.

In: ACS Omega, Vol. 2, No. 9, 01.01.2017, p. 5478-5485.

Research output: Contribution to journalArticle

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AU - Umemura, Yuki

AU - Raifuku, Itaru

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AU - Ishikawa, Yasuaki

AU - Ito, Seigo

AU - Yasueda, Hisashi

AU - Uraoka, Yukiharu

AU - Yamashita, Ichiro

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