所属单位：材料科学与工程学院

发表刊物：Journal of Physics and Chemistry of Solids

关键字：中文关键字：电性能，英文关键字：Nanostructures；Semiconductors；Chemical synthesis；E

摘要：The current study investigates the performance of dye-sensitized solar cells (DSSCs) based on Al-doped and undoped ZnO nanorod arrays synthesized by a simple hydrothermal method. Current density– voltage (J–V) characterizations indicate that Al-doping in ZnO crystal structure can significantly improve current densities and the energy conversion efficiency (Z) of ZnO nanorod-based DSSCs. The maximum Z, 1.34%, was achieved in DSSC when Al-doped ZnO nanorod arrays were grown in 0.04 M zinc acetate dihydrate solution with 5 mMaluminum nitrate nonahydrate. This result represents a large increase of Z in Al-doped ZnO nanorod-based DSSCs as compared to undoped (0.05%). The improved DSSC photovoltaic performance can be attributed to two main factors: (1) increased light harvesting efficiency due to a large amount of N719 adsorbed on the large surface area of Al-doped ZnO nanorod arrays, and (2) increased electrical conductivity due to A13+ ion doped into the ZnO lattice at the divalent Zn2+ site, allowing electrons to move easily into the Al-doped ZnO conduction band.

备注：云斯宁

合写作者：JuneyoungLee,JooyoungChung,SangwooLim

第一作者：云斯宁

论文类型：期刊论文

卷号：卷：

期号：期：71

页面范围：页：1724-1731

是否译文：否

发表时间：2010-08-01