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Exciton binding energies and band gaps in GaN bulk crystals
被引:29
|作者:
Reimann, K
[1
]
Steube, M
Frohlich, D
Clarke, SJ
机构:
[1] Univ Dortmund, Inst Phys, D-44221 Dortmund, Germany
[2] Cornell Univ, Dept Chem, Ithaca, NY 14853 USA
关键词:
gallium nitride;
two-photon spectroscopy;
photoluminescence;
excitons;
electronic band structure;
D O I:
10.1016/S0022-0248(98)00236-X
中图分类号:
O7 [晶体学];
学科分类号:
0702 ;
070205 ;
0703 ;
080501 ;
摘要:
Photoluminescence and two-photon measurements were performed on hexagonal bulk GaN. From photoluminescence we have obtained the energies of free 1S excitons, from two-photon spectroscopy the energies of 2P excitons. These results together allow an accurate determination of exciton binding energies and band gaps. (C) 1998 Elsevier Science B.V. All rights reserved.
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页码:652 / 655
页数:4
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