Effect of additional HCl flow on the surface morphology of GaN grown on sapphire by HVPE

The effect of additional HCl on the surface morphology of HVPE GaN was investigated. The introduction of additional HCl to the growth zone altered the polar growth direction at the initial growth stage, and finally the Ga-face polarity GaN films with smooth surface were obtained.

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Hauptverfasser: Xiangqian Xiu, Rong Zhang, Dianqing Lu, Shulin Gu, Bo Shen, Yi Shi, Zheng Youdou
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creator Xiangqian Xiu
Rong Zhang
Dianqing Lu
Shulin Gu
Bo Shen
Yi Shi
Zheng Youdou
description The effect of additional HCl on the surface morphology of HVPE GaN was investigated. The introduction of additional HCl to the growth zone altered the polar growth direction at the initial growth stage, and finally the Ga-face polarity GaN films with smooth surface were obtained.
doi_str_mv 10.1109/ICSICT.2001.982113
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source IEEE Electronic Library (IEL) Conference Proceedings
subjects Etching
Gallium nitride
Human computer interaction
Optical devices
Optical films
Rough surfaces
Scanning electron microscopy
Substrates
Surface morphology
Surface roughness
title Effect of additional HCl flow on the surface morphology of GaN grown on sapphire by HVPE
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