A Hydroxamic Acid Anchoring Group for Durable Dye-Sensitized Solar Cells Incorporating a Cobalt Redox Shuttle

Tomohiro Higashino; Yuma Kurumisawa; Ning Cai; Yamato Fujimori; Yukihiro Tsuji; Shimpei Nimura; Daniel M. Packwood; Jaehong Park; Hiroshi Imahori

doi:10.1002/cssc.201701157

A Hydroxamic Acid Anchoring Group for Durable Dye-Sensitized Solar Cells Incorporating a Cobalt Redox Shuttle

Tomohiro Higashino, Yuma Kurumisawa, Ning Cai, Yamato Fujimori, Yukihiro Tsuji, Shimpei Nimura, Daniel M. Packwood, Jaehong Park, Hiroshi Imahori

Department of Chemistry & Nanoscience

Research output: Contribution to journal › Article › peer-review

38 Scopus citations

Abstract

A hydroxamic acid group has been employed for the first time as an anchoring group for cobalt-based dye-sensitized solar cells (DSSCs). The porphyrin dye YD2-o-C8HA including a hydroxamic acid anchoring group exhibited a power conversion efficiency (η) of 6.4 %, which is close to that of YD2-o-C8, a representative porphyrin dye incorporating a conventional carboxylic acid. More importantly, YD2-o-C8HA was found to be superior to YD2-o-C8 in terms of both binding ability to TiO₂ and durability of cobalt-based DSSCs. Notably, YD2-o-C8HA photocells revealed a higher η-value (4.1 %) than YD2-o-C8 (2.8 %) after 500 h illumination. These results suggest that the hydroxamic acid can be used for DSSCs with other transition-metal-based redox shuttle to ensure high cell durability as well as excellent photovoltaic performance.

Original language	English
Pages (from-to)	3347-3351
Number of pages	5
Journal	ChemSusChem
Volume	10
Issue number	17
DOIs	https://doi.org/10.1002/cssc.201701157
State	Published - 11 Sep 2017

Bibliographical note

Funding Information:
This work was supported by the JSPS (KAKENHI Grant Number 25220801 (H.I.)).

Publisher Copyright:
© 2017 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim

Keywords

anchoring group
cobalt
dye-sensitized solar cells
hydroxamic acid
porphyrins

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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title = "A Hydroxamic Acid Anchoring Group for Durable Dye-Sensitized Solar Cells Incorporating a Cobalt Redox Shuttle",

abstract = "A hydroxamic acid group has been employed for the first time as an anchoring group for cobalt-based dye-sensitized solar cells (DSSCs). The porphyrin dye YD2-o-C8HA including a hydroxamic acid anchoring group exhibited a power conversion efficiency (η) of 6.4 %, which is close to that of YD2-o-C8, a representative porphyrin dye incorporating a conventional carboxylic acid. More importantly, YD2-o-C8HA was found to be superior to YD2-o-C8 in terms of both binding ability to TiO2 and durability of cobalt-based DSSCs. Notably, YD2-o-C8HA photocells revealed a higher η-value (4.1 %) than YD2-o-C8 (2.8 %) after 500 h illumination. These results suggest that the hydroxamic acid can be used for DSSCs with other transition-metal-based redox shuttle to ensure high cell durability as well as excellent photovoltaic performance.",

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author = "Tomohiro Higashino and Yuma Kurumisawa and Ning Cai and Yamato Fujimori and Yukihiro Tsuji and Shimpei Nimura and Packwood, {Daniel M.} and Jaehong Park and Hiroshi Imahori",

note = "Funding Information: This work was supported by the JSPS (KAKENHI Grant Number 25220801 (H.I.)). Publisher Copyright: {\textcopyright} 2017 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim",

year = "2017",

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doi = "10.1002/cssc.201701157",

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AU - Kurumisawa, Yuma

AU - Cai, Ning

AU - Fujimori, Yamato

AU - Tsuji, Yukihiro

AU - Nimura, Shimpei

AU - Packwood, Daniel M.

AU - Park, Jaehong

AU - Imahori, Hiroshi

PY - 2017/9/11

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AB - A hydroxamic acid group has been employed for the first time as an anchoring group for cobalt-based dye-sensitized solar cells (DSSCs). The porphyrin dye YD2-o-C8HA including a hydroxamic acid anchoring group exhibited a power conversion efficiency (η) of 6.4 %, which is close to that of YD2-o-C8, a representative porphyrin dye incorporating a conventional carboxylic acid. More importantly, YD2-o-C8HA was found to be superior to YD2-o-C8 in terms of both binding ability to TiO2 and durability of cobalt-based DSSCs. Notably, YD2-o-C8HA photocells revealed a higher η-value (4.1 %) than YD2-o-C8 (2.8 %) after 500 h illumination. These results suggest that the hydroxamic acid can be used for DSSCs with other transition-metal-based redox shuttle to ensure high cell durability as well as excellent photovoltaic performance.

KW - anchoring group

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A Hydroxamic Acid Anchoring Group for Durable Dye-Sensitized Solar Cells Incorporating a Cobalt Redox Shuttle

Abstract

Bibliographical note

Keywords

UN SDGs

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