Nitrogen-related local vibrational modes in ZnO:N
Nitrogen-related local vibrational modes in ZnO:N
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DOI：
10.1063/1.1461903
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发表时间：
2002-03-18
影响因子：
4
通讯作者：
Meyer, BK
中科院分区：
文献类型：
--
作者：
Kaschner, A;Haboeck, U;Meyer, BK
我们研究了氧化锌中潜在的受主氮对氧化锌晶格动力学的影响。用二次离子质谱仪(SIMS)研究了含不同氮浓度的化学气相沉积(CVD)生长的一系列样品。拉曼光谱显示，除了氧化锌的主声子外，还存在275、510、582、643和856 cm(-1)处的振动模式。这些附加模式的强度与氮的浓度呈线性相关，可以用来定量测量氧化锌中的氮。这些模式被解释为局部振动模式。此外，SIMS还显示了氮气掺杂浓度和无意氢气浓度之间的相关性，类似于金属有机CVD过程中p掺杂镁和氢在GaN中的掺杂。(C)2002年美国物理研究所。
We study the influence of nitrogen, a potential acceptor in ZnO, on the lattice dynamics of ZnO. A series of samples grown by chemical vapor deposition (CVD) containing different nitrogen concentrations, as determined by secondary ion mass spectroscopy (SIMS), was investigated. The Raman spectra revealed vibrational modes at 275, 510, 582, 643, and 856 cm(-1) in addition to the host phonons of ZnO. The intensity of these additional modes correlates linearly with the nitrogen concentration and can be used as a quantitative measure of nitrogen in ZnO. These modes are interpreted as local vibrational modes. Furthermore, SIMS showed a correlation between the concentration of incorporated nitrogen and unintentional hydrogen, similar to the incorporation of the p-dopant magnesium and hydrogen in GaN during metalorganic CVD. (C) 2002 American Institute of Physics.