Novel bilayer structure ZnO based photoanode for enhancing conversion efficiency in dye-sensitized solar cells

Jin Zhang; Wenxiu Que; Qiaoying Jia; Peng Zhong; Yulong Liao; Xiangdong Ye; Yucheng Ding

doi:10.1016/j.jallcom.2011.04.053

Novel bilayer structure ZnO based photoanode for enhancing conversion efficiency in dye-sensitized solar cells

Jin Zhang
, Wenxiu Que
, Qiaoying Jia
, Peng Zhong
, Yulong Liao
, Xiangdong Ye
, Yucheng Ding

Faculty of Electronic and Information Engineering

Xi'an Jiaotong University

Research output: Contribution to journal › Article › peer-review

35 Scopus citations

Abstract

ZnO film with a novel bilayer structure, which consists of ZnO nanowire (ZnO NW) arrays as underlayer and polydisperse ZnO nanocrystallite aggregates (ZnO NCAs) as overlayer, is fabricated and studied as dye-sensitized solar-cell (DSSC) photoanode. Results indicate that such a configuration of the ZnO nanocrystallite aggregates on the ZnO nanowire arrays (ZnO-(NCAs/NWs)) can significantly improve the efficiency of the DSSC due to its fast electron transport, relatively high surface area and enhanced light-scattering capability. The short-circuit current density (J_sc) and the energy-conversion efficiency (η) of the DSSC based on the ZnO-(NCAs/NWs) photoanode are estimated and the values are 9.19 mA cm^-2 and 3.02%, respectively, which are much better than those of the cells formed only by the ZnO NWs (J_sc = 4.02 mA cm^-2, η = 1.04%) or the ZnO NCAs (J_sc = 7.14 mA cm^-2, η = 2.56%) photoanode. Moreover, the electron transport properties of the DSSC based on the ZnO-(NCAs/NWs) photoanode are also discussed.

Original language	English
Pages (from-to)	7421-7426
Number of pages	6
Journal	Journal of Alloys and Compounds
Volume	509
Issue number	27
DOIs	https://doi.org/10.1016/j.jallcom.2011.04.053
State	Published - 7 Jul 2011

Keywords

Nanocrystallite
Nanowire
Photoanode
Solar cell
Zinc oxide

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10.1016/j.jallcom.2011.04.053

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@article{f56e48cbf89c4819b06201c23ebadabe,

title = "Novel bilayer structure ZnO based photoanode for enhancing conversion efficiency in dye-sensitized solar cells",

abstract = "ZnO film with a novel bilayer structure, which consists of ZnO nanowire (ZnO NW) arrays as underlayer and polydisperse ZnO nanocrystallite aggregates (ZnO NCAs) as overlayer, is fabricated and studied as dye-sensitized solar-cell (DSSC) photoanode. Results indicate that such a configuration of the ZnO nanocrystallite aggregates on the ZnO nanowire arrays (ZnO-(NCAs/NWs)) can significantly improve the efficiency of the DSSC due to its fast electron transport, relatively high surface area and enhanced light-scattering capability. The short-circuit current density (Jsc) and the energy-conversion efficiency (η) of the DSSC based on the ZnO-(NCAs/NWs) photoanode are estimated and the values are 9.19 mA cm-2 and 3.02\%, respectively, which are much better than those of the cells formed only by the ZnO NWs (Jsc = 4.02 mA cm-2, η = 1.04\%) or the ZnO NCAs (Jsc = 7.14 mA cm-2, η = 2.56\%) photoanode. Moreover, the electron transport properties of the DSSC based on the ZnO-(NCAs/NWs) photoanode are also discussed.",

keywords = "Nanocrystallite, Nanowire, Photoanode, Solar cell, Zinc oxide",

author = "Jin Zhang and Wenxiu Que and Qiaoying Jia and Peng Zhong and Yulong Liao and Xiangdong Ye and Yucheng Ding",

year = "2011",

month = jul,

day = "7",

doi = "10.1016/j.jallcom.2011.04.053",

language = "英语",

volume = "509",

pages = "7421--7426",

journal = "Journal of Alloys and Compounds",

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}

TY - JOUR

T1 - Novel bilayer structure ZnO based photoanode for enhancing conversion efficiency in dye-sensitized solar cells

AU - Zhang, Jin

AU - Que, Wenxiu

AU - Jia, Qiaoying

AU - Zhong, Peng

AU - Liao, Yulong

AU - Ye, Xiangdong

AU - Ding, Yucheng

PY - 2011/7/7

Y1 - 2011/7/7

N2 - ZnO film with a novel bilayer structure, which consists of ZnO nanowire (ZnO NW) arrays as underlayer and polydisperse ZnO nanocrystallite aggregates (ZnO NCAs) as overlayer, is fabricated and studied as dye-sensitized solar-cell (DSSC) photoanode. Results indicate that such a configuration of the ZnO nanocrystallite aggregates on the ZnO nanowire arrays (ZnO-(NCAs/NWs)) can significantly improve the efficiency of the DSSC due to its fast electron transport, relatively high surface area and enhanced light-scattering capability. The short-circuit current density (Jsc) and the energy-conversion efficiency (η) of the DSSC based on the ZnO-(NCAs/NWs) photoanode are estimated and the values are 9.19 mA cm-2 and 3.02%, respectively, which are much better than those of the cells formed only by the ZnO NWs (Jsc = 4.02 mA cm-2, η = 1.04%) or the ZnO NCAs (Jsc = 7.14 mA cm-2, η = 2.56%) photoanode. Moreover, the electron transport properties of the DSSC based on the ZnO-(NCAs/NWs) photoanode are also discussed.

AB - ZnO film with a novel bilayer structure, which consists of ZnO nanowire (ZnO NW) arrays as underlayer and polydisperse ZnO nanocrystallite aggregates (ZnO NCAs) as overlayer, is fabricated and studied as dye-sensitized solar-cell (DSSC) photoanode. Results indicate that such a configuration of the ZnO nanocrystallite aggregates on the ZnO nanowire arrays (ZnO-(NCAs/NWs)) can significantly improve the efficiency of the DSSC due to its fast electron transport, relatively high surface area and enhanced light-scattering capability. The short-circuit current density (Jsc) and the energy-conversion efficiency (η) of the DSSC based on the ZnO-(NCAs/NWs) photoanode are estimated and the values are 9.19 mA cm-2 and 3.02%, respectively, which are much better than those of the cells formed only by the ZnO NWs (Jsc = 4.02 mA cm-2, η = 1.04%) or the ZnO NCAs (Jsc = 7.14 mA cm-2, η = 2.56%) photoanode. Moreover, the electron transport properties of the DSSC based on the ZnO-(NCAs/NWs) photoanode are also discussed.

KW - Nanocrystallite

KW - Nanowire

KW - Photoanode

KW - Solar cell

KW - Zinc oxide

UR - https://www.scopus.com/pages/publications/79958000689

U2 - 10.1016/j.jallcom.2011.04.053

DO - 10.1016/j.jallcom.2011.04.053

M3 - 文章

AN - SCOPUS:79958000689

SN - 0925-8388

VL - 509

SP - 7421

EP - 7426

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

IS - 27

ER -

Novel bilayer structure ZnO based photoanode for enhancing conversion efficiency in dye-sensitized solar cells

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Keywords

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