Photoluminescence properties of ZnO nanoneedles grown by metal organic chemical vapor deposition
Photoluminescence properties of ZnO nanoneedles grown by metal organic chemical vapor deposition
复制标题
金属有机化学气相沉积法生长的ZnO纳米针的光致发光特性
DOI:
10.1063/1.2980335
复制
发表时间:
2008-09
影响因子:
3.2
通讯作者:
Lin, Shisheng
中科院分区:
文献类型:
--
作者:
He, Haiping;Zhao, Binghui;Huang, Jingyun;Ye, Zhizhen;Zhu, Liping;Lin, Shisheng
The authors report on growth of ZnO nanoneedles (NNs) by metal organic chemical vapor deposition (MOCVD). Photoluminescence spectra of the NNs at 20 K are dominated by a surface excitonic (SX) emission at 3.367 eV. Temperature-dependent PL reveals the activation energies for the quenching of SX (∼11.2 meV) and donor bound excition (∼21 meV) are close to their localization energies. From 20 K to room temperature, no obvious green emission is observed. These characteristics demonstrate that the surface of NNs grown by MOCVD are not necessarily subjected to nonradiative or deep-level defects on the surface of ZnO nanorods grown by vapor transport method. Furthermore, using three different expressions, we fit the data of temperature dependent A free exciton energy (FXA) transition energy and the results are described and compared. The Debye and Einstein temperatures are found to be 660 and 238 K, respectively. The dependence of the full width at half maximum of the FXA peak as a function of temperature is inv...
登录
查看更多内容
影响因子:
1.2
作者:
A. Manoogian;J. Woolley
通讯作者:
A. Manoogian;J. Woolley
影响因子:
3.5
作者:
L. Wischmeier;T. Voss;I. Rückmann;J. Gutowski
通讯作者:
L. Wischmeier;T. Voss;I. Rückmann;J. Gutowski
影响因子:
4
作者:
Z. Ye;Jianguo Lu;Yinzhu Zhang;Yujia Zeng;Lujian Chen;F. Zhuge;G. Yuan;Haiping He;Luming Zhu;Jun Huang;Binghui Zhao
通讯作者:
Z. Ye;Jianguo Lu;Yinzhu Zhang;Yujia Zeng;Lujian Chen;F. Zhuge;G. Yuan;Haiping He;Luming Zhu;Jun Huang;Binghui Zhao
影响因子:
4
作者:
Y. Ryu;J. Lubguban;Tae-Seok Lee;H. White;T. Jeong;C. Youn;Bongjin Kim
通讯作者:
Y. Ryu;J. Lubguban;Tae-Seok Lee;H. White;T. Jeong;C. Youn;Bongjin Kim
影响因子:
3.2
作者:
Wang, LJ;Giles, NC
通讯作者:
Giles, NC