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Abstract:
采用金属有机化学气相沉积(MOCVD)技术在Si(111)衬底上外延Ga N薄膜,对高温Al N(HT-Al N)缓冲层在小范围内低生长压力(6.7~16.6 k Pa)条件下对Ga N薄膜特性的影响进行了研究。研究结果表明Ga N外延层的表面形貌、结构和光学性质对HT-Al N缓冲层的生长压力有很强的的依赖关系。增加HT-Al N缓冲层的生长压力,Ga N薄膜的光学和形貌特性均有明显改善,当HT-Al N缓冲层的生长压力为13.3 k Pa时,得到无裂纹的Ga N薄膜,其(002)和(102)面的X射线衍射峰值半高宽分别为735 arcsec和778 arcsec,由拉曼光谱计算得到的张应力...
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发光学报
Year: 2018
Issue: 09
Volume: 39
Page: 1285-1290
Cited Count:
WoS CC Cited Count: 0
SCOPUS Cited Count:
ESI Highly Cited Papers on the List: 0 Unfold All
WanFang Cited Count:
Chinese Cited Count:
30 Days PV: 8
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