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Issue 6, 2011
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A novel parallel configuration of dye-sensitized solar cells with double-sided anodic nanotube arrays

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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

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Publication details

The article was received on 20 Feb 2011, accepted on 30 Mar 2011 and first published on 04 May 2011


Article type: Paper
DOI: 10.1039/C1EE01196K
Citation: Energy Environ. Sci., 2011,4, 2240-2248

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    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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