Optical properties of indium doped ZnO planar superlattice nanoribbons
Optical properties of indium doped ZnO planar superlattice nanoribbons
复制标题
铟掺杂ZnO平面超晶格纳米带的光学性质
DOI:
10.1016/j.physe.2017.02.011
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发表时间:
2017-05
影响因子:
3.3
通讯作者:
Guanzhong Wang
中科院分区:
文献类型:
--
作者:
Qianhui Yang;Liren Lou;Guanzhong Wang
The indium-doped zinc-oxide (IZO) planar superlattice nanoribbons were synthesized by a chemical vapor transport method. The x-ray diffraction pattern and high resolution transmission electron microscopy image indicate that the synthesized nanoribbons have planar superlattice structures formulated as In-2 O-3 (ZnO), with small m (m = 3, 5). The Photoluminescence (PL) spectrum of the planar superlattice nanoribbons (NRs) shows only one dominant broad asymmetric excitonic emission with a peak at 3.371 eV, which is about 14 meV higher than the bound exciton emission in pure ZnO. The PL blueshift observed in NRs was attributed to the quantum confinement effect due to small thickness of the In/Zn-O slab. From the temperature dependence of the PL intensity, the activation energy of donor bound exciton bound to In donors in IZO was derived to be around 18.3-25.7 meV. We also obtained the shrinkage parameters of the band gap of the NRs, alpha = 1.0-1.2 meV/K and beta = 500 520 K, by using the Varshni empirical formula.
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影响因子:
1.7
作者:
L. Xin;Huang Dong-Liang;Wu Lili;Zhang Xitian;Zhang Wei-guang
通讯作者:
L. Xin;Huang Dong-Liang;Wu Lili;Zhang Xitian;Zhang Wei-guang
DOI:
10.1088/0022-3727/41/19/195406
发表时间:
2008-10
期刊:
J. Phys. D: Appl. Phys.
影响因子:
--
作者:
张喜田
通讯作者:
张喜田
影响因子:
1.2
作者:
A. Manoogian;J. Woolley
通讯作者:
A. Manoogian;J. Woolley
影响因子:
3.1
作者:
张喜田
通讯作者:
张喜田
影响因子:
6.7
作者:
K. Wu;Haiping He;Yangfan Lu;Jingyun Huang;Z. Ye
通讯作者:
K. Wu;Haiping He;Yangfan Lu;Jingyun Huang;Z. Ye