[1] [1] F. Yan, X. Xin, S. Aslam, Y. Zhao, D. Franz, J. H. Zhao, and M. Weiner, IEEE J. Quantum Electron. 40, 1315 (2004).

[2] [2] Y. Zhou, Y. Zhang, Y. Zhang, and X. Meng, Acta Phys. Sin. (in Chinese) 53, 3710 (2004).

[3] [3] D. M. Brown, E. T. Downey, M. Ghezzo, J. W. Kretchmer, R. J. Saia, Y. S. Liu, J. A. Edmond, G. Gati, J. M. Pimbley, and W. E. Schneider, IEEE Trans. Electron Devices 40, 325 (1993).

[4] [4] X. Xin, F. Yan, T. W. Koeth, C. Joseph, J. Hu, J. Wu, and J. H. Zhao, Electron. Lett. 41, 1192 (2005).

[5] [5] C. K. Wang, S. J. Chang, Y. K. Su, Y. Z. Chiou, S. C. Chen, C. S. Chang, T. K. Lin, H. L. Liu, and J. J. Tang, IEEE Trans. Electron Devices 53, 38 (2006).

[6] [6] X. Yang, B. Liu, Y. Ma, B. Zhao, Y. Zhang, T. Yang, H. Yang, W. Li, D. Liu, and G. Du, Chin. J. Luminescence (in Chinese) 25, 156 (2004).

[7] [7] T. O. Korner, P. Regli, U. Krumbein, and W. Fichtner, in Proceedings of 1996 Lasers and Electro-Optics Society Annual Meeting 1, TuG3, 186 (1996).

[8] [8] X. Chen, “The research and fabrication of GaN-based materials and MSM UV-photodetectors" Master's Degree Thesis (Xiamen University, 2002) p.23.

[9] [9] L. Liu, “Study of ohmic contact and MSM UV detector based on GaN" Master's Degree Thesis (Zhejiang University, 2004) p.43.

[10] [10] Avant Corporation, TCAD Business Unit, Avant Corporation Medici User's Manual (1998).

[11] [11] J. Zhang, Y. Yang, Y. Lu, L. Lou, and Y. Zhao, Chinese J. Lasers (in Chinese) 35, 509 (2008).

[12] [12] M. Mosca, J.-L. Reverchon, N. Grandjean, and J.-Y. Duboz, IEEE J. Sel. Top. Quantum Electron. 10, 752 (2004).

[13] [13] Z. Wu, X. Xin, F. Yan, and J. Zhao, Chin. J. Quantum Electron. (in Chinese) 21, 269 (2004).