Physical understanding of the behavior of silver thick-film contacts on n-type silicon under annealing conditions

Solar Energy Materials and Solar Cells

Volumn 93, Issue 9, 2009, Pages 1630-1635

  Kontermann, S ^a   Horteis M ^a   Kasemann, M ^a   Grohe, A ^a   Preu, R ^a   Pink, E ^b   Trupke, T ^b,c  

^a FRAUNHOFER INSTITUTE FOR SOLAR ENERGY SYSTEMS ISE   (Germany)

^b UNIVERSITY OF NEW SOUTH WALES   (Australia)

^c NONE   (Australia)

Author keywords

Contact resistance; Post metallization annealing; Scanning electron microscopy; Silicon solar cells; Spatially resolved series resistance

Indexed keywords

ANNEALING CONDITION; CONTACT INTERFACE; CURRENT FLOWS; HIGH EFFICIENCY; INDUSTRIAL ENVIRONMENTS; METALLIZATION; N TYPE SILICON; POST METALLIZATION ANNEALING; REAR SIDE; SCREEN-PRINTED; SEM; SPATIALLY RESOLVED SERIES RESISTANCE; THICK-FILM CONTACT;

ANNEALING; CONTACT RESISTANCE; ELECTRON MICROSCOPES; MACHINE DESIGN; METALLIZING; MICROCRYSTALLINE SILICON; PASSIVATION; PHOTOVOLTAIC CELLS; PNEUMATIC CONTROL EQUIPMENT; SCANNING ELECTRON MICROSCOPY; SILICON SOLAR CELLS; SILVER; SOLAR CELLS;

SCANNING;

EID: 67649401681     PISSN: 09270248     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.solmat.2009.04.019     Document Type: Article

References (29)

1. E. Schneiderlöchner, A. Grohe, B. Fleischhauer, M. Hofmann, S.W. Glunz, R. Preu, G. Willeke, Status and advancement in transferring the laser-fired contact technology to screen-printed silicon solar cells, in: Proceedings of the 22nd European Photovoltaic Solar Energy Conference Barcelona, Spain, 2005, pp. 785-788.
2. Aberle A.G. Surface passivation of crystalline silicon solar cells: a review. Progress in Photovoltaics 8 (2000) 473-487
3. 2-Si structures. Journal of the Electrochemical Society 116 (1969) 997-1005
4. Cuevas A., Basore P.A., Giroult-Matlakowski G., and Dubois C. Surface recombination velocity of highly doped n-type silicon. Journal of Applied Physics 80 (1996) 3370-3375
5. 2 interfacetrap annealing. Journal of Applied Physics 63 (1988) 5776-5793
6. S. Glunz, Master Thesis, Albert-Ludwigs Universität Freiburg, 1991.
7. Schultz O., Glunz S.W., and Willeke G.P. Multicrystalline silicon solar cells exceeding 20% efficiency, progress in photovoltaics. Research and Applications 12 (2004) 553-558
8. G. Schubert, J. Horzel, S. Ohl, Investigations on the mechanism behind the beneficial effect of a forming gas anneal on solar cells with silver thick film contacts, In: Proceedings of the 21st EUPVSEC, Dresden, Germany, 2006, pp. 1460-1466.
9. S. Kontermann, A. Grohe, D. Erath, R. Preu, G. Willeke, Investigations on the influence of different annealing steps on silicon solar cells with silver thick film contacts, in: Proceedings of the 22nd European Photovoltaic Solar Energy Conference Milan, Italy, 2007, pp. 1556-1559.
10. Rohatgi A., Narasimha S., Ebong A.U., and Doshi P. Understanding and implementation of rapid thermal technologies for high-efficiency silicon solar cells. IEEE Transactions on Electron Devices 46 (1999) 1970-1977
11. S. Kontermann, A. Grohe, R. Preu, Detailed analysis of annealing silver front side contacts on silicon solar cells, in: Proceedings of the 33rd IEEE PVSC, San Diego, California, USA, 2008, article no. 441.
12. A.G. Aberle, S.R. Wenham, M.A. Green, A new method for accurate measurements of the lumped series resistance of solar cells, in: Proceedings of the 23rd IEEE Photovoltaic Specialists Conference, Louisville, Kentucky, USA, 1993, pp. 133-139.
13. J. Dicker, Dissertation Thesis, Albert-Ludwigs-Universität Freiburg, 1998.
14. S. Glunz, Dissertation Thesis, Albert-Ludwigs-Universität Freiburg, 1995.
15. Trupke T., Pink E., Bardos R.A., and Abbott M.D. Spatially resolved series resistance of silicon solar cells obtained from luminescence imaging. Applied Physics Letters 90 (2007) 093506-1-093506-3
16. E. Pink, T. Trupke, R.A. Bardos, M.D. Abbott, Y. Augarten, S. Kontermann, Fast series resistance imaging using photoluminescence, in: Proceedings of the 22nd European Photovoltaic Solar Energy Conference, Milan, Italy, 2007 pp. 381-385.
17. A. Goetzberger, B. Voß, J. Knobloch, Sonnenenergie: Photovoltaik, Teubner Studienbücher Physik, Stuttgart, 1994.
18. Berger H.H. Models for contacts to planar devices. Solid-State Electronics 15 (1972) 145-158
19. Reeves G.K., and Harrison H.B. Obtaining the specific contact resistance from transmission line model measurements. IEEE Electron Device Letters 3 (1982) 111-113
20. G. Schubert, Dissertation Thesis, Universität Konstanz, 2006.
21. D.M. Huljic, C. Ballif, A. Hessler-Wyser, G. Willeke, Microstructural analyses of Ag thick-film contacts on n-type silicon emitters, in: Proceedings of the 3rd World Conference on Photovoltaic Energy Conversion, Osaka, Japan, 2003, pp. 83-86.
22. Ballif C., Huljic D.M., Willeke G., and Hessler-Wyser A. Silver thick-film contacts on highly doped n-type silicon emitters: structural and electronic properties of the interface. Applied Physics Letters 82 (2003) 1878-1880
23. M.M. Hilali, B. To, A. Rohatgi, A review and understanding of screen-printed contacts and selective-emitter formation, in: Proceedings of the 14th Workshop on Crystalline Silicon Solar Cells and Modules NREL, Winter Park, Colorado, USA, 2004, pp. 109-116.
24. G. Grupp, D. Biro, G. Emanuel, R. Preu, F. Schitthelm, G. Willeke, Analysis of silver thick-film contact formation on industrial silicon solar cells, in: Proceedings of the 31st IEEE Photovoltaics Specialists Conference (PVSEC), Orlando, Florida, 2005, pp. 927-930.
25. K. Firor, S.J. Hogan, J.M. Barrett, R.T. Coyle, Series resistance associated with thick-film contacts to solar cells, in: Proceedings of the 16th IEEE Photovoltaic Specialists Conference, San Diego, California, USA, 1982, pp. 824-827.
26. Gzowski O., Murawski L., and Trzebiatowski K. The surface conductivity of lead glasses. Journal of Physics D (Applied Physics) 15 (1982) 1097-1101
27. Chen L., Zeng Y., Nyugen P., and Alford T.L. Silver diffusion and defect formation in Si (1 1 1) substrate at elevated temperatures. Materials Chemistry and Physics 76 (2002) 224-227
28. Hiraki A., Lugujjo E., Nicolet M.A., and Mayer J.W. Low-temperature migration of silicon through metal films-importance of silicon-metal interface. Physica Status Solidi A 79 (1971) 401-406
29. Weber L. Equilibrium solubility of silicon in silver. Metallurgical and Materials Transactions A Physical Metallurgy and Science 33 (2002) 1145-1150