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Al-doped ZnO thin film: A new transparent conducting layer for ZnO nanowire-based dye-sensitized solar cells

Lee, SH and Han, SH and Jung, HS and Shin, H and Lee, J and Noh, JH and Lee, S and Cho, IS and Lee, JK and Kim, J and Shin, H (2010) Al-doped ZnO thin film: A new transparent conducting layer for ZnO nanowire-based dye-sensitized solar cells. Journal of Physical Chemistry C, 114 (15). 7185 - 7189. ISSN 1932-7447

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Abstract

In this study, an aluminum-doped zinc oxide (AZO) layer was used as a transparent conducting oxide (TCO) layer in ZnO nanowire (NW)-based dye-sensitized solar cells (DSSCs). The well aligned, single crystalline ZnO NW arrays that were grown on the AZO films exhibited a better DSSC performance (an increased photourrent density and fill factor) than those grown on the fluorine doped tin oxide (FTO) films. The I-V characteristics and electrohemical impedance spectroscopy measurements for the ZnO NW arrays on the AZO and FTO films clearly showed that the superior DSSC performance was caused by the facilitated charge injection from the ZnO NW to AZO, resulting from the formation of an ohmic contact. This study demonstrates that the AZO films are more favorable for highly efficient ZnO NW-based photoenergy conversion devices. © 2010 American Chemical Society.


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Details

Item Type: Article
Status: Published
Creators/Authors:
CreatorsEmailPitt UsernameORCID
Lee, SH
Han, SH
Jung, HS
Shin, H
Lee, J
Noh, JH
Lee, S
Cho, IS
Lee, JKjul37@pitt.eduJUL370000-0002-7778-7679
Kim, J
Shin, H
Centers: Other Centers, Institutes, Offices, or Units > Petersen Institute of NanoScience and Engineering
Date: 22 April 2010
Date Type: Publication
Journal or Publication Title: Journal of Physical Chemistry C
Volume: 114
Number: 15
Page Range: 7185 - 7189
DOI or Unique Handle: 10.1021/jp1008412
Schools and Programs: Swanson School of Engineering > Mechanical Engineering and Materials Science
Refereed: Yes
ISSN: 1932-7447
Date Deposited: 23 Oct 2014 18:31
Last Modified: 02 Feb 2019 16:58
URI: http://d-scholarship.pitt.edu/id/eprint/23403

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