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1. 天津中环新光科技有限公司
2. 北京凝聚态物理国家实验室, 中国科学院物理研究所 清洁能源实验室, 北京 100190
收稿:2011-03-08,
修回:2011-4-26,
网络首发:2011-09-22,
纸质出版:2011-09-22
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陈耀, 王文新, 黎艳, 江洋, 徐培强, 马紫光, 宋京, 陈弘. 国产SiC衬底上利用AlN缓冲层生长高质量GaN外延薄膜[J]. 发光学报, 2011,32(9): 896-901
CHEN Yao, WANG Wen-xin, LI Yan, JIANG Yang, XU Pei-qiang, MA Zi-guang, SONG Jing, CHEN Hong. High Quality GaN Layers Grown on SiC Substrates with AlN Buffers by Metalorganic Chemical Vapor Deposition[J]. Chinese Journal of Luminescence, 2011,32(9): 896-901
陈耀, 王文新, 黎艳, 江洋, 徐培强, 马紫光, 宋京, 陈弘. 国产SiC衬底上利用AlN缓冲层生长高质量GaN外延薄膜[J]. 发光学报, 2011,32(9): 896-901 DOI:
CHEN Yao, WANG Wen-xin, LI Yan, JIANG Yang, XU Pei-qiang, MA Zi-guang, SONG Jing, CHEN Hong. High Quality GaN Layers Grown on SiC Substrates with AlN Buffers by Metalorganic Chemical Vapor Deposition[J]. Chinese Journal of Luminescence, 2011,32(9): 896-901 DOI:
采用高温AlN作为缓冲层在国产SiC衬底上利用金属有机物化学气相外延技术生长GaN外延薄膜。通过优化AlN缓冲层的生长参数得到了高质量的GaN外延薄膜
其对称(0002)面和非对称(101 2)面X射线衍射摇摆曲线的半峰宽分别达到130 arcsec和252 arcsec
这是目前报道的在国产SiC衬底上生长GaN最好的结果。文中研究了AlN缓冲层生长参数对GaN晶体质量的影响
还利用拉曼散射研究了GaN外延薄膜中的应力
发现具有越小X射线衍射摇摆曲线半峰宽的GaN外延薄膜受到的张应力也越小。
paper
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