[1] Solar Frontier Achieves World Record Thin-Film Solar Cell Efficiency of 22.9%, http://www.solar-frontier. com/eng/news/2017/1220_press.html.
[2] M. Gloeckler and J.R. Sites, J. Appl. Phys. 98, 103703 (2005).
[3] N. Amin, P. Chelvanathan， M.I. Hossain and K. Sopian, Energy Procedia. 15, 291(2012).
[4] P. Reinhard, F. Pianezzi, L. Kranz, S. Nishiwaki, A.Chirila, S. Buecheler and A.N. Tiwati, Prog. Photo-volt: Res. Appl. 23, 281 (2015).
[5] E. Jarzembowski, B. Fuhrmann, H. Leipner, W. Franzel and R. Scheer, Thin Solid Films 633, 61 (2017).
[6] E. Jarzembowski, F. Syrowatka, K. Kaufmann, W. Franzel, T. Holscher and R. Scheer, Appl. Phys. Lett. 107, 051601 (2015).
[7] J.H. Yoon, J.H. Kim, W.M. Kim, J.K. Park, Y.J. Baik, T.Y. Seong and J.H. Jeong, Prog. Photovolt: Res. Appl. 22, 90 (2014).
[8] R. Caballero, M. Nichterwitz, A. Steigert, A. Eicke, I. Lauermann, H.W. Schock and C.A. Kaufmann, Acta Mater. 63, 54 (2014).
[9] X.L. Zhu, Z. Zhou, Y.M. Wang, L. Zhang, A.M. Li and F.Q. Huang, Sol. Energy Mater. Sol. Cells 101, 57 (2012).
[10] J.H. Yoon, W.M. Kim, J.K. Park, Y.J. Baik, T.Y. Seong and J.H. Jeong, Prog. Photovolt: Res. Appl. 22, 69 (2014).
[11] P. Jackson, R. Wuerz, D. Hariskos, E. Lotter, W. Witte and M. Powalla, Phys. Status Solidi (RRL)-Rapid Res. Lett. 10, 583 (2016).
[12] J.H. Yoon, T.Y. Seong and J.H. Jeong, Prog. Photovolt: Res. Appl. 21, 58 (2013).
[13] K. Granath, M. Bodegard and L. Stolt. Huang, Sol. Energy Mater. Sol. Cells 60, 279 (2000).
[14] J. Joel, B. Vermang, J. Larsen, O.D. Gargand and M. Edoff, Phys. Status Solidi RRL 9, 288 (2015).
[15] B. Vermang, J.T. Watigen, V. Fjallstrom, F. Rostvall, M. Edoff, R. Kotipalli, F. Henry and D. Flandre, Prog. Photovolt: Res. Appl. 22, 1023 (2014).
[16] V. Nadenau, U. Rau, A. Jasenek and H.W. Schock, J. Appl. Phys. 87, 584 (2000).
[17] T. Mise, S. Tajima, T. Fukano, K. Higuchi, T. Wasgio, K. Jimbo and H. Katagiri, Prog. Photovolt: Res. Appl. 24, 1009 (2016).
[18] S.S. Hegedus and W.N. Shafarman, Prog. Photovolt: Res. Appl. 12, 155 (2004).
