Growth of 4H-SiC on AIN/Si(100) complex substrate by chemical vapor deposition

被引:0
作者
Qin, Z [1 ]
Han, P [1 ]
Han, TT [1 ]
Yan, B [1 ]
Shi, J [1 ]
Zhu, J [1 ]
Li, ZB [1 ]
Liu, CX [1 ]
Fu, K [1 ]
Gu, SL [1 ]
Zhang, R [1 ]
Zheng, YD [1 ]
机构
[1] Nanjing Univ, Jiangsu Prov Key Lab Photon & Elect Mat Sci & Tec, Nanjing 210093, Peoples R China
来源
SMIC-XIII: 2004 13th International Conference on Semiconducting & Insulating Materials | 2004年
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中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
Using chemical vapor deposition method, 4H-SiC films were grown on AlN/Si(100) complex substrates at the relatively low temperature (< 1100 degrees C). The results show that there are Al and N present in the SiC film due to the thermal diffusion of Al and N from the substrate. Two photoluminescence peaks, being located at 3.01 eV and 3.17 eV respectively, have been observed at the room temperature. The lower energetic peak is related to Al acceptor and the higher energetic peak to N shallow donor The ionization energy of A 1 acceptor level and N donor level is then obtained to be 0.21 eV and 0.06 eV respectively. The photoluminescence peak located at 3.36 eV corresponds to the secondary conduction band of 4H-SiC at M point, and the gap between the lowest and the secondary conduction band is deduced as 0.125 eV.
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页码:53 / 56
页数:4
相关论文
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