Molecular Engineering of Potent Sensitizers for Very Efficient Light Harvesting in Thin-Film Solid-State Dye-Sensitized Solar Cells

Xiaoyu Zhang; Yaoyao Xu; Fabrizio Giordano; Marcel Schreier; Norman Pellet; Yue Hu; Chenyi Yi; Neil Robertson; Jianli Hua; Shaik M. Zakeeruddin; He Tian; Michael Grätzel

doi:10.1021/jacs.6b05281

Molecular Engineering of Potent Sensitizers for Very Efficient Light Harvesting in Thin-Film Solid-State Dye-Sensitized Solar Cells

Xiaoyu Zhang, Yaoyao Xu, Fabrizio Giordano, Marcel Schreier, Norman Pellet, Yue Hu, Chenyi Yi, Neil Robertson, Jianli Hua, Shaik M. Zakeeruddin, He Tian, Michael Grätzel

School of Chemistry

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

Abstract

Dye-sensitized solar cells (DSSCs) have shown significant potential for indoor and building-integrated photovoltaic applications. Herein we present three new D–A−π–A organic sensitizers, XY1, XY2, and XY3, that exhibit high molar extinction coefficients and a broad absorption range. Molecular modifications of these dyes, featuring a benzothiadiazole (BTZ) auxiliary acceptor, were achieved by introducing a thiophene heterocycle as well as by shifting the position of BTZ on the conjugated bridge. The ensuing high molar absorption coefficients enabled the fabrication of highly efficient thin-film solid-state DSSCs with only 1.3 μm mesoporous TiO2 layer. XY2 with a molar extinction coefficient of 6.66 × 104 M–1 cm–1 at 578 nm led to the best photovoltaic performance of 7.51%.

Original language	English
Pages (from-to)	10742–10745
Number of pages	4
Journal	Journal of the American Chemical Society
Volume	138
Issue number	34
Early online date	4 Aug 2016
DOIs	https://doi.org/10.1021/jacs.6b05281
Publication status	Published - 31 Aug 2016

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http://pubs.acs.org/doi/abs/10.1021/jacs.6b05281

Neil Robertson
- neil.robertsoned.acuk
- School of Chemistry - Personal Chair of Molecular Materials
- EaStCHEM
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Zhang, X., Xu, Y., Giordano, F., Schreier, M., Pellet, N., Hu, Y., Yi, C., Robertson, N., Hua, J., Zakeeruddin, S. M., Tian, H., & Grätzel, M. (2016). Molecular Engineering of Potent Sensitizers for Very Efficient Light Harvesting in Thin-Film Solid-State Dye-Sensitized Solar Cells. Journal of the American Chemical Society, 138(34), 10742–10745. https://doi.org/10.1021/jacs.6b05281

Zhang, Xiaoyu ; Xu, Yaoyao ; Giordano, Fabrizio ; Schreier, Marcel ; Pellet, Norman ; Hu, Yue ; Yi, Chenyi ; Robertson, Neil ; Hua, Jianli ; Zakeeruddin, Shaik M. ; Tian, He ; Grätzel, Michael. / Molecular Engineering of Potent Sensitizers for Very Efficient Light Harvesting in Thin-Film Solid-State Dye-Sensitized Solar Cells. In: Journal of the American Chemical Society. 2016 ; Vol. 138, No. 34. pp. 10742–10745.

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title = "Molecular Engineering of Potent Sensitizers for Very Efficient Light Harvesting in Thin-Film Solid-State Dye-Sensitized Solar Cells",

abstract = "Dye-sensitized solar cells (DSSCs) have shown significant potential for indoor and building-integrated photovoltaic applications. Herein we present three new D–A−π–A organic sensitizers, XY1, XY2, and XY3, that exhibit high molar extinction coefficients and a broad absorption range. Molecular modifications of these dyes, featuring a benzothiadiazole (BTZ) auxiliary acceptor, were achieved by introducing a thiophene heterocycle as well as by shifting the position of BTZ on the conjugated bridge. The ensuing high molar absorption coefficients enabled the fabrication of highly efficient thin-film solid-state DSSCs with only 1.3 μm mesoporous TiO2 layer. XY2 with a molar extinction coefficient of 6.66 × 104 M–1 cm–1 at 578 nm led to the best photovoltaic performance of 7.51%.",

author = "Xiaoyu Zhang and Yaoyao Xu and Fabrizio Giordano and Marcel Schreier and Norman Pellet and Yue Hu and Chenyi Yi and Neil Robertson and Jianli Hua and Zakeeruddin, {Shaik M.} and He Tian and Michael Gr{\"a}tzel",

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doi = "10.1021/jacs.6b05281",

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Zhang, X, Xu, Y, Giordano, F, Schreier, M, Pellet, N, Hu, Y, Yi, C, Robertson, N, Hua, J, Zakeeruddin, SM, Tian, H & Grätzel, M 2016, 'Molecular Engineering of Potent Sensitizers for Very Efficient Light Harvesting in Thin-Film Solid-State Dye-Sensitized Solar Cells', Journal of the American Chemical Society, vol. 138, no. 34, pp. 10742–10745. https://doi.org/10.1021/jacs.6b05281

Molecular Engineering of Potent Sensitizers for Very Efficient Light Harvesting in Thin-Film Solid-State Dye-Sensitized Solar Cells. / Zhang, Xiaoyu; Xu, Yaoyao; Giordano, Fabrizio; Schreier, Marcel; Pellet, Norman; Hu, Yue; Yi, Chenyi; Robertson, Neil; Hua, Jianli; Zakeeruddin, Shaik M.; Tian, He; Grätzel, Michael.

In: Journal of the American Chemical Society, Vol. 138, No. 34, 31.08.2016, p. 10742–10745.

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

TY - JOUR

T1 - Molecular Engineering of Potent Sensitizers for Very Efficient Light Harvesting in Thin-Film Solid-State Dye-Sensitized Solar Cells

AU - Zhang, Xiaoyu

AU - Xu, Yaoyao

AU - Giordano, Fabrizio

AU - Schreier, Marcel

AU - Pellet, Norman

AU - Hu, Yue

AU - Yi, Chenyi

AU - Robertson, Neil

AU - Hua, Jianli

AU - Zakeeruddin, Shaik M.

AU - Tian, He

AU - Grätzel, Michael

PY - 2016/8/31

Y1 - 2016/8/31

N2 - Dye-sensitized solar cells (DSSCs) have shown significant potential for indoor and building-integrated photovoltaic applications. Herein we present three new D–A−π–A organic sensitizers, XY1, XY2, and XY3, that exhibit high molar extinction coefficients and a broad absorption range. Molecular modifications of these dyes, featuring a benzothiadiazole (BTZ) auxiliary acceptor, were achieved by introducing a thiophene heterocycle as well as by shifting the position of BTZ on the conjugated bridge. The ensuing high molar absorption coefficients enabled the fabrication of highly efficient thin-film solid-state DSSCs with only 1.3 μm mesoporous TiO2 layer. XY2 with a molar extinction coefficient of 6.66 × 104 M–1 cm–1 at 578 nm led to the best photovoltaic performance of 7.51%.

AB - Dye-sensitized solar cells (DSSCs) have shown significant potential for indoor and building-integrated photovoltaic applications. Herein we present three new D–A−π–A organic sensitizers, XY1, XY2, and XY3, that exhibit high molar extinction coefficients and a broad absorption range. Molecular modifications of these dyes, featuring a benzothiadiazole (BTZ) auxiliary acceptor, were achieved by introducing a thiophene heterocycle as well as by shifting the position of BTZ on the conjugated bridge. The ensuing high molar absorption coefficients enabled the fabrication of highly efficient thin-film solid-state DSSCs with only 1.3 μm mesoporous TiO2 layer. XY2 with a molar extinction coefficient of 6.66 × 104 M–1 cm–1 at 578 nm led to the best photovoltaic performance of 7.51%.

U2 - 10.1021/jacs.6b05281

DO - 10.1021/jacs.6b05281

M3 - Article

VL - 138

SP - 10742

EP - 10745

JO - Journal of the American Chemical Society

JF - Journal of the American Chemical Society

SN - 0002-7863

IS - 34

ER -

Molecular Engineering of Potent Sensitizers for Very Efficient Light Harvesting in Thin-Film Solid-State Dye-Sensitized Solar Cells

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