Issue 22, 2011
From the journal:

Physical Chemistry Chemical Physics

ZnO hierarchical structures for efficient quasi-solid dye-sensitized solar cells†

Chun Cheng,‡a   Yantao Shi,‡a   Chao Zhu,a   Wei Li,a   Lin Wang,a   Kwok Kwong Funga  and  Ning Wang*a  

* Corresponding authors

a Department of Physics and the William Mong Institute of Nano Science and Technology, the Hong Kong University of Science and Technology, Hong Kong, China
E-mail: phwang@ust.hk
Fax: 00852-23581652
Tel: 00852-23587489

Abstract

We report a direct precipitation method for mass production of ZnO microflowers (MFs) containing hierarchical structures. The ZnO MFs are constructed by interlaced single crystalline and porous nanosheets which are ideal photoanode material for dye-sensitized solar cells (DSCs) because the MFs can largely improve the energy harvesting performance and the efficiency of DSCs. Compared with other forms of nano-sized structures, the novel hierarchical structures show obvious advantages in DSC application because of their large surface area for dye-loading, good light scattering efficiency and excellent electrical transport property. The quasi-solid state DSCs fabricated with the MF hierarchical structures exhibited an efficiency of 4.12%, much higher than that of ZnO nanoparticle-based DSCs, indicating a great potential for the development of highly-efficient quasi-solid DSCs.

Graphical abstract: ZnO hierarchical structures for efficient quasi-solid dye-sensitized solar cells

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Article information

DOI
https://doi.org/10.1039/C1CP21068H
Article type
Communication
Submitted
06 Apr 2011
Accepted
07 Apr 2011
First published
10 May 2011

Phys. Chem. Chem. Phys., 2011,13, 10631-10634

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ZnO hierarchical structures for efficient quasi-solid dye-sensitized solar cells

C. Cheng, Y. Shi, C. Zhu, W. Li, L. Wang, K. K. Fung and N. Wang, Phys. Chem. Chem. Phys., 2011, 13, 10631 DOI: 10.1039/C1CP21068H

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