The optical properties of ZnO sheets electrodeposited on ITO glass

被引：60
作者：
Wang, Feifei
Liu, Ruibin
Pan, Anlian
Cao, Li
Cheng, Ke
Xue, Bofei
Wang, Geng
Meng, Qingbo
Li, Jinghong
Li, Qi
Wang, Yanguo
Wang, Taihong
Zou, Bingsuo
机构：
[1] Chinese Acad Sci, Inst Phys, Beijing 100080, Peoples R China
[2] Hunan Univ, MicroNano Technol Res Ctr, Changsha 410082, Peoples R China
[3] Tsinghua Univ, Dept Chem, Beijing 100084, Peoples R China
来源：
MATERIALS LETTERS | 2007年 / 61卷 / 10期
基金：
中国国家自然科学基金;
关键词：
ZINC-OXIDE; ROOM-TEMPERATURE; ELECTROCHEMICAL GROWTH; LASER-EMISSION; SOLAR-CELLS; FILMS; DEPOSITION; ARRAYS; LIGHT; PHOTOLUMINESCENCE;
D O I：
10.1016/j.matlet.2006.08.007
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Large-scale hexagonal ZnO sheets were grown on ITO glass by cathodic electrodeposition in an aqueous zinc nitrate/potassium chloride solution at 60 degrees C and annealing at 350 degrees C for an hour. The sheets are about 3 mu m in dimension and 100-300 nm in thickness. The ZnO sheets show many nano-pits on the surface and produce intense green luminescence at room temperature under femtosecond (fs) pulse ultraviolet (UV) light excitation. Both power-dependent photoluminescence spectra and time-resolved spectra were measured with varied excitation powers. Lasing phenomena occur at above 500 PJ/cm(2) and the stimulated emission occurs with lifetime of less than 30 ps over 600 mu J/cm(2). Additionally, the open-circuit photovoltage spectra indicate that the light-absorbing dye of RuL2(NCS)(2)(N3) can be well adsorbed on the surface of ZnO sheets, which is useful for the dye-sensitized solar cells(DSSC). (c) 2006 Elsevier B.V. All rights reserved.
引用
收藏
页码：2000 / 2003
页数：4
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