Abstract
A polyimide substrate was used for the fabrication of flexible Cu(In,Ga)Se2 (CIGS) thin-film solar cells. To deposit a stable Mo layer on a flexible substrate, we measured the residual stress in the polyimide film after the deposition of a Mo layer by varying the process pressure. A CIGS absorber was deposited on a Mo layer at a growth temperature below 500℃ by using a Se thermal cracker and various cracking zone temperatures (T C ) to improve the reactivity of Se due to the low process temperature. To investigate the effect of Na on the efficiency of a flexible CIGS solar cell, we deposited a Mo:Na layer as a source of Na between the Mo layer and the polyimide substrate. In case of the flexible CIGS solar cell fabricated under the condition of a T C of 800℃ with a Mo:Na layer, the highest cell efficiency was achieved at 10.76% without an anti-reflection coating, which is significantly increased by 4% compared to the efficiency of a solar cell without the Mo:Na layer.
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References
M. Pagliaro, G. Palmisano and R. Ciriminna, Flexible Solar Cells (Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim, 2008).
A. Shah, P. Torres, R. Tscharner, N. Wyrsch and H. Keppner, Science 285, 692 (1999).
A. Chirila, S. Buecheler, F. Pianezzi, P. Bloesch, C. Gretener, A. R. Uhl, C. Fella, L. Kranz, J. Renoud, S. Seyrling, R. Verma, S. Nishiwaki, Y. E. Romanyuk, G. Bilger G and A. N. Tiwari, Nat. Mater. 10, 857 (2011).
F. Kessler and D. Rudmann, Sol. Energy 77, 685 (2004).
S. Niki, M. Contreras, I. Repins, M. Powalla, K. Kushiya, S. Ishizuka and K. Matsubara, Prog. Photovolt: Res. Appl. 18, 453 (2010).
P. Jackson, D. Hariskos, E. Lotter, S. Paetel, R. Wuerz, R. Menner, W. Wischmann and M. Powalla, Prog. Photovolt: Res. Appl. 19, 894 (2011).
M. Kawamura, T. Fujita, A. Yamada and M. Konagai, J. Cryst. Growth 311, 753 (2009).
S. J. Park, D. H. Cho, J. H. Kim, Y. S. Cho, J. M. Yoon and Y. D. Chung, 22th International Photovoltaic Science and Engineering Conference and Exhibition (PVSEC) (Hangzhou, Nov., 2012).
K. H. Kim, K. H. Yun, J. H. Kim and B. T. Ahn, Electrochem. Solid-State Lett. 9, A382 (2006).
S. H. Wei, S. B. Zhang and A. Zunger, J. Appl. Phys. 85, 7214 (1999).
S. Ishizuka, A. Yamada, M. M. Islam, H. Shibata, P. Fons, T. Sakurai, K. Akimoto and S. Niki, J. Appl. Phys. 106, 034908 (2009).
K. Granath, M. Bodegard and L. Stolt, Sol. Energy Mater. Sol. Cells 60, 279 (2000).
R. Kimura, T. Nakada, P. Fons, A. Yamada, S. Niki, T. Matsuzawa, K. Takahashi and A. Kunioka, Sol. Energy Mater. Sol. Cells 67, 289 (2001).
Y. D. Chung, D. H. Cho, H. W. Choi, K. S. Lee, B. J. Ahn, J. H. Song and J. Kim, J. Korean Phys. Soc. 61, 1623 (2012).
H. A. Al-Thani, F. S. Hasoon, J. L. Alleman and M. M. Al-Jassim, Sharjah Solar Energy Conference (Sharjah, Feb., 2001).
X. Feng, Y. Huang and A. J. Rosakis, J. Appl. Mech. 74, 6 (2007).
J. H. Scofield, A. Dudaa, D. Albina, B. L. Ballardb and P. K. Predeckib, Thin Solid Films 260, 1 (1995).
T. Nakada, T. Kuraishi, T. Inoue and T. Mise, 35th IEEE Photovoltaic Specialists Conference (PVSC) (Honolulu, June, 2010).
D. H. Cho, K. S. Lee, Y. D. Chung, J. H. Kim, S. J. Park and J. Kim, Appl. Phys. Lett. 101, 023901 (2012).
J. T. Heath, J. D. Cohen, W. N. Shafarman, D. X. Liao and A. Rockett, J. Appl. Phys. 80, 24 (2002).
E. S. Mungan, X. Wang and M. A. Alam, IEEE J. Photovolt. 3, 1 (2013).
O. Lundberg, M. Edoff and L. Stolt, Thin Solid Films 480, 1 (2004).
B. Li, Y. Zhang, B. Wang, J. He, L. Wu and Y. Sun, Semicond. Sci. Technol. 27, 065007 (2012).
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Park, SJ., Chung, YD., Lee, WJ. et al. Flexible solar cells with a Cu(In,Ga)Se2 absorber grown by using a Se thermal cracker on a polyimide substrate. Journal of the Korean Physical Society 66, 76–81 (2015). https://doi.org/10.3938/jkps.66.76
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DOI: https://doi.org/10.3938/jkps.66.76