Technology adjustment for manufacturing of flexible thin-film CdTe/CdS photovoltaic structures K. Znajdek, M. Sibiñski and Z. Lisik 2018/04/20

Abstract

The paper presents the results of the investigation on flexible photovoltaic structures based on CdTe/CdS semiconductor compounds. The aim of conducted research was focused on adjusting of manufacturing technology used for rigid CdTe/CdS solar cells for flexible substrates requirements. The production technology of cadmium telluride based photovoltaic cells, used by authors previously for rigid cells, requires high temperatures which are not acceptable for standard flexible substrates. Thus, the technology process parameters must have been changed in order to match the temperature resistance of the substrate. Additionally, this technology change must include the conservation of obtained layers’ parameters. After a lot of experiments, such a compromise has been finally achieved.

Authors and affiliations

K. Znajdek1, M. Sibiñski1 and Z. Lisik1
1. Department of Semiconductor and Optoelectronic Devices. Faculty of Electrical, Electronic, Computer and Control Engineering, Lodz University of Technology. Lodz (Poland)

Key words

Flexible photovoltaic structures, thin-film solar cells, cadmium telluride, cadmium sulfide

References

[1] R. Bube, „Photovoltaic materials“, Imperial College Press Londyn, 135-136, (1998).
[2] J. McClure, V.Singh, G. Lush “Foil mounted thin film solar cells for space and terrestrial applications”, Solar Energy
Materials & Solar Cells 60, 78-84, (2000).
[3] A. Niemegeers, M. Burgelman, „Effects of the Au/CdTe back contact on IV and CV characteristics ofAu/CdTe/CdS/TCO solar cells”, Journal of Applied Physics 81 (6) , 2881-2886, (1997).
[4] A. Alnajjar, S. Abdul Jawad, N. Yusuf, „Investigation of ohmic contact to p-type CdTe:P using AC and DC techniques”,
Renwable Energy 27, 417-425, (2002).
[5] H. Hartmann, R. Mach, B. Selle, „Wide bandgap II-VI compounds as electronic materials“, Current Topics in Materials
Science, Amsterdam, 1-414, (1981).
[6] D. Levi, „Back contact effects on junction photoluminescence In CdTe/CdS solar cells”, 26 th IEEE Photovoltaic Specialists Conference, Anheim, 351-354, (1997).
[7] C. Ferekides, D. Marinskiy, V. Viswanathan, B. Tetali, V. Palekis, P.Selvaraj, D. Morel, „High efficiency CSS CdTe solar cells”, Thin Solid Films Vol. 361-362, 520-526, (2000).
[8] H. Hartmann, R. Mach, B. Selle, „Wide bandgap II-VI compounds as electronic materials“, Current Topics in Materials
Science, Amsterdam, 1-414, (1981).
[9] K. Goliszewska, E. Kamiñska, A. Piotrkowska, J. Rutkowski, E. Kowalczyk, E. Papis, R. Kruszka, T. Piotrkowski, A. Wawro, „Transparent ohmic contacts to GaSb/In(Al)GaAsSb photovoltaic cells”, 8th Expert Evaluation and Control of Compound Semiconductor Materials and Technology, EXMATEC 2006, Kadyks, 133, (2006).
[10] B. Depuydt, I Clemminck, M. Burgelman, M. Casteleyn, „Solar Cells with screen-printed and sintered CdTe layers on
CdS/TCO substrates”, 12th EPSEC Stephens & Associates, 1554-1556, (1994).
[11] J. Perrenoud, S. Buecheler, A. N. Tiwari, „Flexible CdTe solar cells and modules: challenges and prospects”, Proc. SPIE 7409, Thin Film Solar Technology, (2009).
[12] J. Perrenoud, „Low temperature grown CdTe thin film solar cells for the application on flexible substrates”, rozprawa
doktorska, ETH No. 20460, (2012).
[13] J. Schaffner, M. Motzko, A. Tueschen, A. Swirschuk, H. J. Schimper, A. Klein, T. Modes, O. Zywitzki, W. Jaegermann,
„12% efficient CdTe/CdS thin film solar cells deposited by lowtemperature close space sublimation”, Journal of Applied Physics 110, 064508 (2011).
[14] A. Tiwari, A. Romeo, D. Baetzner, H. Zogg, „Flexible CdTe Solar Cells on Polymer Films”, Progress in Photovoltaics:
Research and Applications, 9, 211-215, (2001).