[1] Gessmarnn T and Schubert E F, J. Appl. Phys. 95, 2203 (2004).

[2] Li G, Wang W, Yang W, Lin Y, Wang H and Lin Z, Reports on Progress in Physics Physical Society 79, 056501 (2016).

[3] Shervin S, Kim S-H, Asadirad M, Karpov SY, Zimina D and Ryou J-H, ACS Photonics 3, 486 (2016).

[4] Kim M S, Lee H K and Yu J S, Semicond. Sci. Technol. 28, 2 (2013).

[5] Horng R H, Wu B R, Weng C F, Ravadgar P, Wu T M, Wang S P, Yang J H, Chen Y M, Hsu T C, Liu A S and Wuu D S, Opt. Express 21, 19668 (2013).

[6] Li X F, Budai J D, Liu F, Howe J Y, Zhang J H, Wang X J, Gu Z J, Sun C J, Meltzer R S and Pan Z W, Light: Science & Applications 2, e50–1 (2013).

[7] Pan J W and Tsaiet P J, Applied Optics 52, 1358 (2013).

[8] Lee ATL, Chen H, Tan S-C and Hui SYR, IEEE Transactions on Power Electronics 31, 65 (2016).

[9] Tao X and Yang B, Journal of Power Electronics 16, 815 (2016).

[10] Xu M, Mu Q, Xiao L, Zhou Q, Wang H and Ji Z, Materials Express 6, 205 (2016).

[11] Chang S J, Zeng X F, Shei S C and Li S, IEEE J. Topics Quantum Electron 49, 846 (2013).

[12] Lee H K, Kim M S and Yu J S, Microelectronic Engineering 104, 29 (2013).

[13] Li K H and Cheung Y F, IEEE Photonics Technology Letters 25, 374 (2013).

[14] Kim H, Cho J, Lee J W, Yoon S, Kim H, Sone C and Park Y, Appl. Phys. Lett. 90, 063510 (2007).

[15] Kim H, Lee J M, Huh C, Kim S W, Kim D J, Park S J and Hwang H, Appl. Phys. Lett. 77, 1903 (2000).

[16] Kim H, Park S J and Hwang H, IEEE Trans. Electron Devices 48, 1065 (2001).

[17] Chang S J, Kuo C H, Su Y K, Wu L W, Sheu J K, Wen T C, Lai W C, Chen J F and Tsai J M, IEEE J. Sel. Topics Quantum Electron 8, 744 (2002).

[18] Ryu H Y and Shim J I, Opt. Express 19, 2886 (2011).

[19] Tian P F, Jonathan J D M, Gong Z, Guilhabert B, Watson I M, Gu E, Chen Z Z, Zhang G Y and Dawson M D, Appl. Phys. Lett. 101, 231110 (2012).

[20] Tian C, Wang W B, Liang J Q, Liang Z Z, Qin Y X and Lv J G, AIP Advance 5, 041309 (2015).

[21] Dai Q, Shan Q F and Wang J, Appl. Phys. Lett. 97, 133507 (2010).