The effect of growth temperature on structural quality of AlInGaN/AlN/GaN heterostructures grown by MOCVD

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Title:	The effect of growth temperature on structural quality of AlInGaN/AlN/GaN heterostructures grown by MOCVD
Authors:	駱佳納;Loganathan, R.;Balaji, M.;Prabakaran, K.;Ramesh, R.;Jayasakthi, M.;Arivazhagan, P.;Singh, Shubra;Baskar, K.
Contributors:	資訊電機學院電機工程學系
Keywords:	Characterization and Evaluation of Materials;Chemistry and Materials Science;Gallium nitrides;Indium gallium nitrides;Materials Science;Maxima;Optical and Electronic Materials;Photoluminescence;Pits;Roughness;Spectrometers
Date:	2015-07-24
Issue Date:	2026-04-23 14:46:51 (UTC+8)
Publisher:	Springer New York;New York: Springer US
Abstract:	摘要： In this paper, the influence of the growth temperature on the structural quality of AlInGaN epilayer on the GaN/sapphire substrate grown by metal–organic chemical vapor deposition has been studied. The AlInGaN epilayers has been characterized by high-resolution X-ray diffractometer, atomic force microscopy, photoluminescence spectra and Raman scattering spectrometer. The growth temperature is believed to have a direct influence on the quality of the AlInGaN epilayer. Upon optimizing the growth temperature, at 890 °C a high crystalline quality with a full width at half maxima for the (0004) and (10–15) planes are 312 and 618 arc-sec, respectively has been achieved. It has been found that the number of V-defect pits at high growth temperature can be minimized. The AlInGaN also revealed atomic level step with a root mean square roughness of 0.13 nm. Other than the AlInGaN related room temperature photoluminescence peak, two emissions originate from InGaN-like clusters and the AlInGaN random matrix, respectively. In the Raman spectra, the mode at 748 cm −1 is attributed to the A 1 (LO) mode of AlInGaN. The mode at 680 cm −1 is attributed to InGaN clustering and assigned as A 1 (LO) mode. 其他題名： J Mater Sci: Mater Electron 出版者： New York: Springer US 出版日期： 2015-07-01 出處： Journal of materials science. Materials in electronics, 2015-07, Vol.26 (7), p.5373-5380 資源來源： EBSCOhost OmniFile Full Text Select 版權： Springer Science+Business Media New York 2015 識別號： ISSN: 0957-4522 識別號： EISSN: 1573-482X 識別號： DOI: 10.1007/s10854-015-3082-4
Appears in Collections:	[Department of Electrical Engineering] journal & Dissertation

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