Au/TiO2 Hollow Spheres with Synergistic Effect of Plasmonic Enhancement and Light Scattering for Improved Dye-Sensitized Solar Cells

Yue Ying Li; Jian Gan Wang; Xing Rui Liu; Chao Shen; Keyu Xie; Bingqing Wei

doi:10.1021/acsami.7b04624

Au/TiO₂ Hollow Spheres with Synergistic Effect of Plasmonic Enhancement and Light Scattering for Improved Dye-Sensitized Solar Cells

Yue Ying Li, Jian Gan Wang, Xing Rui Liu, Chao Shen, Keyu Xie, Bingqing Wei

School of Materials Sience and Engineering

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

51 Scopus citations

Abstract

Au-decorated TiO₂ hollow spheres (Au-THS) have been successfully synthesized via a facile one-pot solvothermal method. The Au-THS hybrid features unique hollow structure with a large specific surface area of 120 m² g^-1 and homogeneous decoration of Au nanoparticles, giving rise to enhanced light harvesting and charge generation/separation efficiency. When incorporated into the active layer of dye-sensitized solar cells (DSSCs), an improved power conversion efficiency of 7.3% is obtained, which is increased by 37.7% compared with the controlled P25 DSSC. The underlying mechanism to rationalize the efficiency enhancement can be mainly attributed to the strong synergistic effect of superior light scattering ability of the THS and the plasmonic-enhanced effect rendered by the Au nanoparticles.

Original language	English
Pages (from-to)	31691-31698
Number of pages	8
Journal	ACS Applied Materials and Interfaces
Volume	9
Issue number	37
DOIs	https://doi.org/10.1021/acsami.7b04624
State	Published - 20 Sep 2017

Keywords

dye-sensitized solar cell
gold nanoparticle
hollow structure
plasmonic-enhanced effect
titanium oxide

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10.1021/acsami.7b04624

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title = "Au/TiO2 Hollow Spheres with Synergistic Effect of Plasmonic Enhancement and Light Scattering for Improved Dye-Sensitized Solar Cells",

abstract = "Au-decorated TiO2 hollow spheres (Au-THS) have been successfully synthesized via a facile one-pot solvothermal method. The Au-THS hybrid features unique hollow structure with a large specific surface area of 120 m2 g-1 and homogeneous decoration of Au nanoparticles, giving rise to enhanced light harvesting and charge generation/separation efficiency. When incorporated into the active layer of dye-sensitized solar cells (DSSCs), an improved power conversion efficiency of 7.3% is obtained, which is increased by 37.7% compared with the controlled P25 DSSC. The underlying mechanism to rationalize the efficiency enhancement can be mainly attributed to the strong synergistic effect of superior light scattering ability of the THS and the plasmonic-enhanced effect rendered by the Au nanoparticles.",

keywords = "dye-sensitized solar cell, gold nanoparticle, hollow structure, plasmonic-enhanced effect, titanium oxide",

author = "Li, {Yue Ying} and Wang, {Jian Gan} and Liu, {Xing Rui} and Chao Shen and Keyu Xie and Bingqing Wei",

note = "Publisher Copyright: {\textcopyright} 2017 American Chemical Society.",

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doi = "10.1021/acsami.7b04624",

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AU - Li, Yue Ying

AU - Wang, Jian Gan

AU - Liu, Xing Rui

AU - Shen, Chao

AU - Xie, Keyu

AU - Wei, Bingqing

PY - 2017/9/20

Y1 - 2017/9/20

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AB - Au-decorated TiO2 hollow spheres (Au-THS) have been successfully synthesized via a facile one-pot solvothermal method. The Au-THS hybrid features unique hollow structure with a large specific surface area of 120 m2 g-1 and homogeneous decoration of Au nanoparticles, giving rise to enhanced light harvesting and charge generation/separation efficiency. When incorporated into the active layer of dye-sensitized solar cells (DSSCs), an improved power conversion efficiency of 7.3% is obtained, which is increased by 37.7% compared with the controlled P25 DSSC. The underlying mechanism to rationalize the efficiency enhancement can be mainly attributed to the strong synergistic effect of superior light scattering ability of the THS and the plasmonic-enhanced effect rendered by the Au nanoparticles.

KW - dye-sensitized solar cell

KW - gold nanoparticle

KW - hollow structure

KW - plasmonic-enhanced effect

KW - titanium oxide

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Au/TiO₂ Hollow Spheres with Synergistic Effect of Plasmonic Enhancement and Light Scattering for Improved Dye-Sensitized Solar Cells

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Keywords

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