A quantum dot sensitized solar cell based on vertically aligned carbon nanotube templated ZnO arrays

J. Chen; C. Li; D. W. Zhao; Wei Lei; Y. Zhang; Matthew Cole; D. P. Chu; B. P. Wang; Y. P. Cui; X. W. Sun; W I Milne

doi:10.1016/j.elecom.2010.08.001

A quantum dot sensitized solar cell based on vertically aligned carbon nanotube templated ZnO arrays

J. Chen, C. Li, D. W. Zhao, Wei Lei, Y. Zhang, Matthew Cole, D. P. Chu, B. P. Wang, Y. P. Cui, X. W. Sun, W I Milne

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63 Citations (SciVal)

Abstract

We report on a quantum dot sensitized solar cell (QDSSC) based on ZnO nanorod coated vertically aligned carbon nanotubes (VACNTs). Electrochemical impedance spectroscopy shows that the electron lifetime for the device based on VACNT/ZnO/CdSe is longer than that for a device based on ZnO/CdSe, indicating that the charge recombination at the interface is reduced by the presence of the VACNTs. Due to the increased surface area and longer electron lifetime, a power conversion efficiency of 1.46% is achieved for the VACNT/ZnO/CdSe devices under an illumination of one Sun (AM 1.5G, 100 mW/cm²).

Original language	English
Pages (from-to)	1432-1435
Number of pages	4
Journal	Electrochemistry Communications
Volume	12
Issue number	10
DOIs	https://doi.org/10.1016/j.elecom.2010.08.001
Publication status	Published - Oct 2010

Keywords

CdSe
Quantum dot
Solar cell
VACNT
ZnO

ASJC Scopus subject areas

Electrochemistry

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10.1016/j.elecom.2010.08.001

Cite this

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title = "A quantum dot sensitized solar cell based on vertically aligned carbon nanotube templated ZnO arrays",

abstract = "We report on a quantum dot sensitized solar cell (QDSSC) based on ZnO nanorod coated vertically aligned carbon nanotubes (VACNTs). Electrochemical impedance spectroscopy shows that the electron lifetime for the device based on VACNT/ZnO/CdSe is longer than that for a device based on ZnO/CdSe, indicating that the charge recombination at the interface is reduced by the presence of the VACNTs. Due to the increased surface area and longer electron lifetime, a power conversion efficiency of 1.46% is achieved for the VACNT/ZnO/CdSe devices under an illumination of one Sun (AM 1.5G, 100 mW/cm2). ",

keywords = "CdSe, Quantum dot, Solar cell, VACNT, ZnO",

author = "J. Chen and C. Li and Zhao, {D. W.} and Wei Lei and Y. Zhang and Matthew Cole and Chu, {D. P.} and Wang, {B. P.} and Cui, {Y. P.} and Sun, {X. W.} and Milne, {W I}",

year = "2010",

month = oct,

doi = "10.1016/j.elecom.2010.08.001",

language = "English",

volume = "12",

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journal = "Electrochemistry Communications",

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T1 - A quantum dot sensitized solar cell based on vertically aligned carbon nanotube templated ZnO arrays

AU - Chen, J.

AU - Li, C.

AU - Zhao, D. W.

AU - Lei, Wei

AU - Zhang, Y.

AU - Cole, Matthew

AU - Chu, D. P.

AU - Wang, B. P.

AU - Cui, Y. P.

AU - Sun, X. W.

AU - Milne, W I

PY - 2010/10

Y1 - 2010/10

N2 - We report on a quantum dot sensitized solar cell (QDSSC) based on ZnO nanorod coated vertically aligned carbon nanotubes (VACNTs). Electrochemical impedance spectroscopy shows that the electron lifetime for the device based on VACNT/ZnO/CdSe is longer than that for a device based on ZnO/CdSe, indicating that the charge recombination at the interface is reduced by the presence of the VACNTs. Due to the increased surface area and longer electron lifetime, a power conversion efficiency of 1.46% is achieved for the VACNT/ZnO/CdSe devices under an illumination of one Sun (AM 1.5G, 100 mW/cm2).

AB - We report on a quantum dot sensitized solar cell (QDSSC) based on ZnO nanorod coated vertically aligned carbon nanotubes (VACNTs). Electrochemical impedance spectroscopy shows that the electron lifetime for the device based on VACNT/ZnO/CdSe is longer than that for a device based on ZnO/CdSe, indicating that the charge recombination at the interface is reduced by the presence of the VACNTs. Due to the increased surface area and longer electron lifetime, a power conversion efficiency of 1.46% is achieved for the VACNT/ZnO/CdSe devices under an illumination of one Sun (AM 1.5G, 100 mW/cm2).

KW - CdSe

KW - Quantum dot

KW - Solar cell

KW - VACNT

KW - ZnO

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DO - 10.1016/j.elecom.2010.08.001

M3 - Article

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SP - 1432

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JO - Electrochemistry Communications

JF - Electrochemistry Communications

IS - 10

ER -

A quantum dot sensitized solar cell based on vertically aligned carbon nanotube templated ZnO arrays

Abstract

Keywords

ASJC Scopus subject areas

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