Visible photoluminescence of ultrathin ZnO nanowire at room temperature

被引:37
作者
Lin, Yan-Ru [1 ]
Yang, Shang-Shian
Tsai, Song-Yeu
Hsu, Hao-Cheng
Wu, Shinn-Tyan
Chen, I-Cherng
机构
[1] Ind Technol Res Inst, Photovolta Technol Ctr, Hsinchu 31040, Taiwan
[2] Natl Tsing Hua Univ, Dept Mat Sci & Engn, Hsinchu 30043, Taiwan
[3] Ind Technol Res Inst, Mat & Chem Res Labs, Hsinchu 31040, Taiwan
关键词
GROWTH; ARRAYS; NANORODS;
D O I
10.1021/cg050416u
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Zinc oxide (ZnO) nanowire (NW) was grown on a ZnO-buffered silicon substrate by a hydrothermal method in an aqueous solution that contained methenamine (C6H12N4) and zinc nitrate hexahydrate (Zn(NO3)(2)center dot 6H(2)O). The concentration of the zinc nitrate is the main factor that governed the morphology of the NW. As the concentration was reduced gradually, the diameter of the NW became smaller, and an ultrathin (<= 10 nm) single crystal of ZnO NW emerged. The sample of ultrathin NW contains many dislocations and exhibits an unusual characteristic photoluminescence (PL) spectrum in the visible light region.
引用
收藏
页码:1951 / 1955
页数:5
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