Photoluminescence Analysis of Energy Level on Li-Doped ZnO Nanowires Grown by a Hydrothermal Method
Photoluminescence Analysis of Energy Level on Li-Doped ZnO Nanowires Grown by a Hydrothermal Method
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DOI：
10.1143/apex.5.095002
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发表时间：
2012-09-01
影响因子：
2.3
通讯作者：
Hong, Jin Pyo
中科院分区：
文献类型：
--
作者：
Lee, Sang Hyo;Lee, Jun Seok;Hong, Jin Pyo
本文报道了通过水热法生长的锂掺杂 ZnO 纳米线的光学和结构特性。低温和温度依赖性光致发光光谱清楚地表现出发射峰，证实了作为受体掺杂剂的锂杂质的存在。特别是，根据 PL 光谱估计 Li 掺杂剂的受体能级为 121 meV。该值还可以从 A 度 X 发射的积分 PL 强度作为温度的函数的阿伦尼乌斯图来指示。这些结果与之前在其他研究中报道的 p 型掺杂剂的理论和实验结果一致。 (C) 2012 日本应用物理学会
The optical and structural properties of Li-doped ZnO nanowires grown by a hydrothermal method are reported herein. The low-temperature and temperature-dependent photoluminescence spectra clearly exhibited emission peaks that confirmed the presence of a lithium impurity as an acceptor dopant. Particularly, the acceptor energy level of the Li dopant was estimated to be 121 meV from the PL spectra. This value was also indicated from an Arrhenius plot of the integrated PL intensity of the A degrees X emission as a function of temperature. These results are in agreement with theoretical and experimental results of previously considered p-type dopants reported in other studies. (C) 2012 The Japan Society of Applied Physics