Issue 21, 2015
From the journal:

Journal of Materials Chemistry A

Dye-sensitized solar cells based on hierarchically structured porous TiO2 filled with nanoparticles†

Zhenxuan Zhao,a   Guicheng Liu,a   Bo Li,b   Lixue Guo,a   Chengbin Fei,a   Yajie Wang,a   Lili Lv,b   Xiaoguang Liu,b   Jianjun Tianab  and  Guozhong Cao*ac  

* Corresponding authors

a Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing 100083, P. R. China
E-mail: gzcao@u.washington.edu

b Advanced Material and Technology Institute, University of Science and Technology, Beijing 100083, P. R. China

c Department of Materials and Engineering, University of Washington, Seattle, WA98195-2120, USA

Abstract

A new morphology of TiO2 photoanodes for N-719 dye-sensitized solar cells (DSCs) has been developed with enhanced power conversion performance. Strategies for the synthesis of hierarchically structured three-dimensionally ordered macroporous (HS-3DOM) TiO2 with controlled macropore sizes (ca. 85–155 nm) by using well-arrayed polymethyl methacrylate with different diameters as well as two kinds of photoanode films based on hierarchically structured porous TiO2 filled with nanoparticles have been demonstrated. DSCs based on a special TiO2 photoanode with a macropore size of 105 nm exhibited a current density (Jsc) of 20.6 mA cm−2 and a high photo-to-electrical energy conversion efficiency (η) of 9.7%. This high power conversion efficiency is ascribed to the special morphology of the TiO2 photoanode with high dye adsorption due to its ordered and open structures, and also its light scattering and charge collection efficiency.

Graphical abstract: Dye-sensitized solar cells based on hierarchically structured porous TiO2 filled with nanoparticles

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Article information

DOI
https://doi.org/10.1039/C5TA01953B
Article type
Paper
Submitted
17 Mar 2015
Accepted
13 Apr 2015
First published
15 Apr 2015
This article is Open Access
Creative Commons BY license

J. Mater. Chem. A, 2015,3, 11320-11329

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Dye-sensitized solar cells based on hierarchically structured porous TiO2 filled with nanoparticles

Z. Zhao, G. Liu, B. Li, L. Guo, C. Fei, Y. Wang, L. Lv, X. Liu, J. Tian and G. Cao, J. Mater. Chem. A, 2015, 3, 11320 DOI: 10.1039/C5TA01953B

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