High-efficiency dye-sensitized solar cell based on a nitrogen-doped nanostructured titania electrode

被引：295

作者：

Ma, TL

Akiyama, M

Abe, E

Imai, I

机构：

[1] Natl Inst Adv Ind Sci & Technol, AIST Kyushu, Tosu, Saga 8410052, Japan

[2] Toshiba Ceram Co Ltd, Res & Dev Ctr, Hadano, Kanagawa 2578566, Japan

来源：

NANO LETTERS | 2005年 / 5卷 / 12期

关键词：

D O I：

10.1021/nl051885l

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A highly efficient dye-sensitized solar cell (DSC) was fabricated using a nanocrystalline nitrogen-doped titania electrode. The properties of the nitrogen-doped titania powder, film, and solar cell were investigated. The substitution of oxygen sites with nitrogen atoms in the titania structure was confirmed by X-ray photoemission spectroscopy (XPS). The UV-vis spectrum of the nitrogen-doped powder and film showed a visible light absorption in the wavelength range from 400 to 535 nm. An enhancement of the incident photon-to-current conversion efficiency (IPCE) in the range of 380-520 nm and 550-750 nm was observed. An 8% overall conversion efficiency has been achieved. The results of the stability test indicated that the solar cell fabricated by the nitrogen-doped titania exhibited great stability.

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页码：2543 / 2547

页数：5

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