Electric-Field-Assisted Growth of Ga-Doped ZnO Nanorods Arrays for Dye-Sensitized Solar Cells

• 作者: Hao Wang Jinghua Hu Jinxia Duan Qiu Xiong
• 来源期刊: 电力能源(英文)
• 学科: 工学
• 关键词: Ga-Doped ZnO Electric-Field-Assisted WET Chemical Method DYE-SENSITIZED Solar Cells
• 年，卷（期）: 2015,（12）
• 页码范围: 11-18
• 页数: 8页
• 分类号: TB3

摘要

A photoanode with Ga-doped ZnO nanorods has been prepared on F-doped SnO2 (FTO) coated glass substrate and its application in dye-sensitized solar cells (DSSCs) has been investigated. Ga-doped ZnO nanorods have been synthesized by an electric-field-assisted wet chemical approach at 80?C. Under a direct current electric field, the nanorods predominantly grow on cathodes. The results of the X-ray photoelectron spectroscopy and photoluminescence verify that Ga dopant is successfully incorporated into the ZnO wurtzite lattice structure. Finally, employing Ga-doped ZnO nanorods with the length of ~5 μm as the photoanode of DSSCs, an overall energy conversion efficiency of 2.56% is achieved. The dramatically improved performance of Ga-doped ZnO based DSSCs compared with that of pure ZnO is due to the higher electron conductivity.