Improved quantum efficiency in semipolar (1101) InGaN/GaN quantum wells grown on gan prepared by lateral epitaxial overgrowth

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	Improved quantum efficiency in semipolar (1101) InGaN/GaN quantum wells grown on gan prepared by lateral epitaxial overgrowth
	Zhu, Lihong ; Zeng, Fanming ; Liu, Wei ; Feng, Zhechuan ; Liu, Baolin ; Lu, Yijun ; Gao, Yulin ; Chen, Zhong ; Zhu LH(朱丽虹) ; Chen Z(陈忠)
刊名	http://dx.doi.org/10.1109/TED.2013.2282233
	2013
关键词	Epitaxial growth Gallium nitride Metallorganic chemical vapor deposition Optical properties Photoluminescence Quantum efficiency Scanning electron microscopy
英文摘要	We investigated the comparative structural and optical properties of semipolar InGaN/GaN multiple quantum wells (MQWs) grown on the (11ˉ01) facet GaN/sapphire substrate by metal-organic chemical vapor deposition using lateral epitaxial overgrowth. The scanning electron microscopy (SEM), photoluminescence (PL), and temperature-varying time-resolved photoluminescence measurement were performed to investigate the structure and optical properties. The cross-sectional SEM image shows that the stripe triangular structure of the QW with semipolar (11) planes is obtained as sidewall facets with the mask stripes aligned along the GaN a-axis. The structural and optical advantages of semipolar orientations were confirmed by a modurate shift of the PL peak energy, higher internal quantum efficiency, and lower radiative recombination lifetime than the MQWs on (0001) GaN grown by conventional methods. The results were obtained because of the reduced polarization fields in semipolar InGaN/GaN MQWs comparing with that in polar (0001) MQWs. ? 1963-2012 IEEE.
语种	英语
出版者	Institute of Electrical and Electronics Engineers Inc.
内容类型	期刊论文
源URL	[http://dspace.xmu.edu.cn/handle/2288/91971]
专题	物理技术－已发表论文
推荐引用方式 GB/T 7714	Zhu, Lihong,Zeng, Fanming,Liu, Wei,et al. Improved quantum efficiency in semipolar (1101) InGaN/GaN quantum wells grown on gan prepared by lateral epitaxial overgrowth[J]. http://dx.doi.org/10.1109/TED.2013.2282233,2013.
APA	Zhu, Lihong.,Zeng, Fanming.,Liu, Wei.,Feng, Zhechuan.,Liu, Baolin.,...&陈忠.(2013).Improved quantum efficiency in semipolar (1101) InGaN/GaN quantum wells grown on gan prepared by lateral epitaxial overgrowth.http://dx.doi.org/10.1109/TED.2013.2282233.
MLA	Zhu, Lihong,et al."Improved quantum efficiency in semipolar (1101) InGaN/GaN quantum wells grown on gan prepared by lateral epitaxial overgrowth".http://dx.doi.org/10.1109/TED.2013.2282233 (2013).