Alloying from screen-printed aluminum pastes containing boron additives

IEEE Journal of Photovoltaics

Volumn 3, Issue 1, 2013, Pages 206-211

  Rauer, Michael ^a   Schmiga, Christian ^a   Glatthaar, Markus ^a   Glunz, Stefan W ^a  

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

Author keywords

Aluminum boron codoping; aluminum boron paste; coalloying; silicon solar cells

Indexed keywords

ACCEPTOR CONCENTRATIONS; ALUMINUM DIBORIDE; ALUMINUM PASTE; ALUMINUM-BORON PASTE; B ATOMS; BACK-SURFACE FIELD; BORON TRIOXIDE; CO-DOPING; COALLOYING; MINORITY CARRIER LIFETIMES; SATURATION CURRENT DENSITIES; SCREEN-PRINTED;

ALLOYING; ALUMINUM; BORIDES; BORON; SILICON; SILICON SOLAR CELLS; SURFACE DEFECTS;

ALUMINUM ALLOYS;

EID: 84871785270     PISSN: 21563381     EISSN: None     Source Type: Journal    
DOI: 10.1109/JPHOTOV.2012.2217113     Document Type: Article

References (25)

1. B. Hallam, S. Wenham, A. Sugianto, L. Mai, C. Chong, M. Edwards, D. Jordan, and P. P. Fath, "Record large-area p-type Cz production cell efficiency of 19. 3% based on LDSE technology," IEEE J. Photovoltaics, vol. 1, no. 1, pp. 43-48, Jul. 2011.
2. B. Tjahjono, H. Haverkamp, V. Wu, H. T. Anditsch, W.-H. Jung, J. Cheng, J. Ting, M. J. Yang, D. Habermann, T. Sziptalak, C. Buchner, C. Schmid, B. Beilby, and K.-C. Hsu, "Optimizing selective emitter technology in one year of full scale production," in Proc. 26th Eur. Photovoltaic Solar Energy Conf. Exhib., Hamburg, Germany, 2011, pp. 901-905.
3. D. L. Meier, H. P. Davis, R. A. Garcia, J. Salami, A. Rohatgi, A. Ebong, and P. Doshi, "Aluminum alloy back p-n junction dendritic web silicon solar cell," Sol. Energy Mater. Sol. Cells, vol. 65, pp. 621-627, 2001.
4. C. Schmiga, H. Nagel, and J. Schmidt, "19% efficient n-type Czochralski silicon solar cells with screen-printed aluminium-alloyed rear emitter," Progr. Photovoltaic: Res. Appl., vol. 14, pp. 533-539, 2006. (Pubitemid 44372425)
5. C. Schmiga, M. Rauer, M. R̈udiger, K. Meyer, J. Lossen, H.-J. Krokoszinski, M. Hermle, and S. W. Schmiga, "Aluminium-doped p+ silicon for rear emitters and back surface fields: Results and potentials of industrial n-and p-type solar cells," in Proc. 25th Eur. Photovoltaic Solar Energy Conf. Exhib., Valencia, Spain, 2010, pp. 1163-1168.
6. F. Book, T. Wiedenmann, G. Schubert, H. Plagwitz, and G. Hahn, "Influence of the front surface passivation quality on large area n-type silicon solar cells with Al-alloyed rear emitter," Energy Procedia, vol. 8, pp. 487-492, 2011.
7. M. P. Godlewski, C. R. Baraona, and H. W. Brandhorst, "Low high junction theory applied to solar cells," in Proc. 10th IEEE Photovoltaic Spec. Conf., Palo Alto, CA, 1973, pp. 40-49.
8. M. Rauer, C. Schmiga, M. Hermle, and S. W. Glunz, "Passivation of screen-printed aluminium-alloyed emitters for back junction n-type silicon solar cells," in Proc. 24th Eur. Photovoltaic Solar Energy Conf. Exhib., Hamburg, Germany, 2009, pp. 1059-1062.
9. M. Rauer, C. Schmiga, M. Hermle, and S. W. Glunz, "Effectively surfacepassivated aluminium-doped p+ emitters for n-type silicon solar cells," Phys. Status Solidi A, vol. 207, no. 5, pp. 1249-1251, 2010.
10. M. R̈udiger, C. Schmiga, M. Rauer, M. Hermle, and S. W. Glunz, "Optimization of industrial n-type silicon solar cells with aluminum-alloyed rear emitter by means of 2D numerical simulation," in Proc. 25th Eur. Photovoltaic Solar Energy Conf. Exhib., Valencia, Spain, 2010, pp. 2280-2286.
11. J. M̈uller, K. Bothe, S. Gatz, H. Plagwitz, G. Schubert, and R. Brendel, "Contact formation and recombination at screen-printed local aluminumalloyed silicon solar cell base contacts," IEEE Trans. Electron Devices, vol. 58, no. 10, pp. 3239-3245, Oct. 2011.
12. J. Krause, R. Woehl, M. Rauer, C. Schmiga, J. Wilde, and D. Biro, "Microstructural and electrical properties of different-sized aluminum-alloyed contacts and their layer system on silicon surfaces," Sol. Energy Mater. Sol. Cells, vol. 95, no. 8, pp. 2151-2160, 2011.
13. F. Huster, "Investigation of the alloying process of screen-printed aluminium pastes for the BSF formation on silicon solar cells," in Proc. 20th Eur. Photovoltaic Solar Energy Conf. Exhib., Barcelona, Spain, 2005, pp. 1466-1469.
14. P. L̈olgen, W. C. Sinke, C. Leguijt, A. W. Weeber, P. F. A. Alkemade, and L. A. Verhoef, "Boron doping of silicon using coalloying with aluminium," Appl. Phys. Lett., vol. 65, no. 22, pp. 2792-2794, 1994.
15. T. Yoshikawa and M. Kazuki, "Solid solubilities and thermodynamic properties of aluminum in solid silicon," J. Electrochem. Soc., vol. 150, pp. G465-G468, 2003.
16. D. Nobili, "Solubility of B in Si," Properties of Silicon, p. 384, 1987.
17. M. R̈udiger, M. Rauer, C. Schmiga, and M. Hermle, "Effect of incomplete ionization for the description of highly aluminum-doped silicon," J. Appl. Phys., vol. 110, pp. 024508-1-024508-7, 2011.
18. J. Schmidt, B. Veith, and R. Brendel, "Effective surface passivation of crystalline silicon using ultrathin Al2O3 films and Al2O3/SiNx stacks," Phys. Status Solidi RRL, vol. 3, no. 9, pp. 287-289, 2009.
19. A. Richter, J. Benick, M. Hermle, and S. W. Glunz, "Excellent silicon surface passivationwith 5 °A thinALD Al2O3 layers: Influence of different thermal post-deposition treatments," Phys. Status Solidi RRL, vol. 5, no. 5-6, pp. 202-204, 2011.
20. F. Huster and G. Schubert, "ECVdoping profile measurement of aluminum alloyed back surface fields," in Proc. 20th Eur. Photovoltaic Solar Energy Conf. Exhib., Barcelona, Spain, 2005, pp. 1462-1465.
21. R. Bock, P. Altermatt, J. Schmidt, and R. Brendel, "Formation of aluminum-oxygen complexes in highly aluminum-doped silicon," Semicond. Sci. Technol., vol. 25, 105007 (4 pp. ), 2010.
22. H. L. Lukas, "Aluminium-Boron-Silicon," in Ternary Alloy Systems. G. Effenberg and S. Ilyenko, Eds., vol. 11, Berlin, Germany: Springer, 2009, pp. 33-40.
23. T. Yoshikawa and K. Morita, "Thermodynamic property of B in molten Si and phase relations in the Si-Al-B system," Mater. Trans., vol. 46, no. 6, pp. 1335-1340, 2005. (Pubitemid 41118557)
24. M. Rauer, C. Schmiga, M. Glatthaar, and S. W. Glunz, "Theoretical and experimental investigation of aluminum-boron-codoping of silicon, to be published
25. J. Gr̈obner, D. Mirkovic, and R. Schmid-Fetzer, "Thermodynamic aspects of grain refinement of Al-Si alloying using Ti and B," Mater. Sci. Eng. A, vol. 395, pp. 10-21, 2005. (Pubitemid 40334956)