Al-Doped ZnO Thin Film: A New Transparent Conducting Layer for ZnO Nanowire-Based Dye-Sensitized Solar Cells

被引：139

作者：

Lee, Sung-Hae ^{[1
]}

Han, Se-Hoon ^{[1
]}

Jung, Hyun Suk ^{[1
]}

Shin, Hyunjung ^{[1
]}

Lee, Jagab ^{[1
]}

Noh, Jun-Hong ^{[2
]}

Lee, Sangwook ^{[2
]}

Cho, In-Sun ^{[2
]}

Lee, Jung-Kun ^{[3
]}

Kim, Jinyoung ^{[4
]}

Shin, Hyunho ^{[5
]}

机构：

[1] Kookmin Univ, Sch Adv Mat Engn, Seoul 136702, South Korea

[2] Seoul Natl Univ, Sch Mat Sci & Engn, Seoul 151744, South Korea

[3] Univ Pittsburgh, Dept Mech Engn & Mat Sci, Pittsburgh, PA 15261 USA

[4] Natl Renewable Energy Lab, Chem & Biosci Ctr, Golden, CO 80401 USA

[5] Ganeneung Wonju Natl Univ, Dept Ceram Engn, Kangnung 210702, South Korea

来源：

JOURNAL OF PHYSICAL CHEMISTRY C | 2010年 / 114卷 / 15期

关键词：

LIGHT-EMITTING DEVICES; PHOTOVOLTAIC DEVICES; NANORODS; ANODES;

D O I：

10.1021/jp1008412

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

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 photocurrent density and fill factor) than those grown on the fluorine doped tin oxide (FTO) films. The I-V characteristics and electrochemical 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.

引用

页码：7185 / 7189

页数：5

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