Nanocrystalline Electrodes Based on Nanoporous-Walled WO3 Nanotubes for Organic-Dye-Sensitized Solar Cells

被引：86

作者：

Hara, Kohjiro ^{[1
]}

Zhao, Zhi-Gang ^{[1
]}

Cui, Yan ^{[1
]}

Miyauchi, Masahiro ^{[1
]}

Miyashita, Masanori ^{[2
]}

Mori, Shogo ^{[2
]}

机构：

[1] Natl Inst Adv Ind Sci & Technol, Tsukuba, Ibaraki 3058565, Japan

[2] Shinshu Univ, Nagano 3868567, Japan

来源：

LANGMUIR | 2011年 / 27卷 / 20期

关键词：

HEPTAMETHINE-CYANINE DYES; MOLECULAR DESIGN; COUMARIN DYES; TIO2; LIGHT; TRANSPORT; CONVERSION; PERFORMANCE; PHOTOCATALYSTS; RECOMBINATION;

D O I：

10.1021/la201639f

中图分类号：

O6 [化学];

学科分类号：

070301 [无机化学];

摘要：

Nanoporous-walled tungsten oxide (WO3) nanotubes (NTs), which had a more positive conduction band edge level compared to that of TiO2, were applied to various organic dyes for dye-sensitized solar cells (DSSCs). The dye-sensitized WO3 NTs displayed photosensitization for the organic dyes whose lowest unoccupied molecular orbital (LUMO) level was relatively positive to the conventional TiO2 electrode and, thus, not applicable for electron injection to the TiO2 electrode. Electron transport time and electron lifetime for the WO3 electrode in the DSSCs were investigated. In comparison to the DSSCs based on TiO2, SnO2, and In2O3, the WO3 DSSCs displayed the longest lifetime. On the other hand, non-diffusion-like electron transport may be an issue to apply WO3 for the DSSCs.

引用

页码：12730 / 12736

页数：7

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