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首页> 外文期刊>Journal of Physics, D. Applied Physics: A Europhysics Journal >Gas phase optical emission spectroscopy during remote plasma chemical vapour deposition of GaN and relation to the growth dynamics
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Gas phase optical emission spectroscopy during remote plasma chemical vapour deposition of GaN and relation to the growth dynamics

机译:GaN的远程等离子体化学气相沉积过程中的气相发射光谱及其与生长动力学的关系

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摘要

A remote plasma chemical vapour deposition (RPCVD) system for the growth of gallium nitride (GaN) thin films is investigated using optical emission spectroscopy (OES). The intensities of the various excited species in pure nitrogen as well as nitrogen/hydrogen plasmas are correlated with GaN film growth characteristics. We show a correlation between the plasma source spectrum, the downstream spectrum where trimethylgallium is introduced and the GaN film quality. In particular, we investigate the addition of hydrogen, which greatly affects the gas phase species and the GaN film characteristics. OES is demonstrated to be a valuable monitoring tool in a RPCVD system for optimization of GaN growth.
机译:使用光发射光谱法(OES)研究了用于生长氮化镓(GaN)薄膜的远程等离子体化学气相沉积(RPCVD)系统。纯氮以及氮/氢等离子体中各种激发物质的强度与GaN薄膜的生长特性相关。我们显示了等离子体源光谱,引入三甲基镓的下游光谱与GaN膜质量之间的相关性。特别是,我们研究了氢的添加,这极大地影响了气相种类和GaN膜的特性。 OES被证明是RPCVD系统中用于优化GaN生长的有价值的监测工具。

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