云斯宁 Likes:

Affiliation of Author(s):

材料科学与工程学院

Journal:

Journal of Physics and Chemistry of Solids

Key Words:

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

Abstract:

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.

Note:

云斯宁

Co-author:

JuneyoungLee,JooyoungChung,SangwooLim

First Author:

yunsining

Indexed by:

Journal paper

Volume:

卷：

Issue:

期：71

Page Number:

页：1724-1731

Translation or Not:

no

Date of Publication:

2010-08-01