Issue 6, 2011

A novel parallel configuration of dye-sensitized solar cells with double-sided anodic nanotube arrays

Abstract

In dye-sensitized solar cells based on anodic titania nanotube arrays, the low photocurrent in the backside-illuminated configuration has hindered their development. To increase the energy absorption and thus promote the photocurrent, a novel parallel configuration of dye-sensitized solar cells is proposed and achieved in this work on the basis of double-sided anodic nanotubes. The parallel connection is verified by electrochemical impedance spectroscopy measurements. The parallel cells exhibit an average 70% increment in photocurrent and 30% enhancement in efficiency as compared to the single cells, due to significantly increased surface area and highly reduced series resistance. Theoretical calculation and experimental fitting results demonstrate that a tube length of ∼30 μm is optimal for the nanotubes used in this study with backside-illuminated architecture.

Graphical abstract: A novel parallel configuration of dye-sensitized solar cells with double-sided anodic nanotube arrays

Supplementary files

Article information

Article type
Paper
Submitted
20 Feb 2011
Accepted
30 Mar 2011
First published
04 May 2011

Energy Environ. Sci., 2011,4, 2240-2248

A novel parallel configuration of dye-sensitized solar cells with double-sided anodic nanotube arrays

L. Sun, S. Zhang, X. Wang, X. W. Sun, D. Y. Ong and A. K. Ko Kyaw, Energy Environ. Sci., 2011, 4, 2240 DOI: 10.1039/C1EE01196K

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