Publications

characterization

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In-situ stage development for high-temperature X-ray nanocharacterization of defects in solar cells

S. Gangam, A. Jeffries, D.P. Fenning, B. Lai, T. Buonassisi, C. Honsberg, and M.I. Bertoni
Proc. 39th IEEE Photovoltaic Specialists Conference, Tampa, FL, USA (2013)
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Decoupling surface- and bulk-limited lifetimes in 100-μm thin silicon using transient absorption pump-probe spectroscopy

S.C. Siah, C.B. Simmons, J. Hofstetter, M.T. Winkler, and T. Buonassisi
Proc. 39th IEEE Photovoltaic Specialists Conference, Tampa, FL, USA (2013)
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Co-optimizing crystalline silicon solar cell throughput and efficiency using continuously ramping phosphorus diffusion profiles

A.E. Morishige, D.P. Fenning, J. Hofstetter, and T. Buonassisi
Materials Research Society Fall Meeting & Exhibit, Boston, MA (2012)
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Synchrotron-based characterization of solar cell nanodefects

M.I. Bertoni, D.P. Fenning, V. Rose, M. Holt, J. Maser, and T. Buonassisi
Proc. 37th IEEE Photovoltaic Specialists Conference, Seattle, WA, USA (2011)
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Impact of defect type on hydrogen passivation effectiveness in multicrystalline silicon solar cells

M.I. Bertoni, S. Hudelson, B.K. Newman, S. Bernardis, D.P. Fenning, H.F.W. Dekkers, E. Cornagliotti, A.S. Zuschlag, G. Micard, G. Hahn, G. Coletti, B. Lai, and T. Buonassisi
Proc. 35th IEEE Photovoltaic Specialists Conference Honolulu, HI (2010)
See also: Journal Article
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Quantitative stress measurements of bulk microdefects in multicrystalline silicon

S. Schoenfelder, A. Sampson, V. Ganapati, R. Koepge, S. Castellanos, S. Oener, and T. Buonassisi
Proc. 24th European Photovoltaic Solar Energy Conference, Hamburg, Germany; pp.977-980. (2009)
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Luminescence imaging

T. Trupke, R.A. Bardos, M.D. Abbott, E. Pink, Y. Augarten, F.W. Chen, J.E. Cotter, M. Kasemann, M.C. Schubert, M. The, S.W. Glunz, W. Warta, M. Rüdiger, E. Schäffer, P. Würfel, D. Macdonald, J. Tan, A. Cuevas, J. Bauer, O. Breitenstein, T. Buonassisi, A.M. Lorenz, and H.P. Hartmann
Proc. 22nd European Photovoltaic Solar Energy Conference and Exhibition, Milan, Italy (2007)
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Intermetallic phases and transition metal interaction in mc-silicon

M. Heuer, S. Langkau, T. Buonassisi, A.A. Istratov, A. Minor, and E.R. Weber
Proc. 22nd European Photovoltaic Solar Energy Conference and Exhibition, Milan, Italy (2007)
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Evolution of stresses in wafer bulks and edges during industrial solar cell processing

T. Buonassisi, S. Reitsma, R. Sweeney, M.D. Pickett, W. Huang, J. Lesniak, and M.L. Spencer
Proc. 22nd European Photovoltaic Solar Energy Conference and Exhibition, Milan, Italy (2007)
See also: Presentation
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From understanding towards engineering metal impurities in multicrystalline silicon

T. Buonassisi, A.A. Istratov, M. Heuer, M.D. Pickett, M.A. Marcus, B. Lai, S.M. Heald, and E.R. Weber
Proc. 21st European Photovoltaic Solar Energy Conference and Exhibition, Dresden, Germany; pp.696-699 (2006)
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Transition metal interaction and formation of intermetallic phases in multicrystalline silicon

M. Heuer, T. Buonassisi, M.A. Marcus, A.A. Istratov, M.D. Pickett, A. Minor, B. Lai, and E.R. Weber
Proc. 21st European Photovoltaic Solar Energy Conference and Exhibition, Dresden, Germany; pp.1105–1107 (2006)
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Distinguishing the impacts of individual metal species on multicrystalline silicon performance in a multiple metal environment

T. Buonassisi, A.A. Istratov, M. Heuer, M.D. Pickett, and E.R. Weber
Proc. 20th European Photovoltaic Solar Energy Conference, Barcelona, Spain (2005)
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Synchrotron-based investigations into metallic impurity distribution and defect engineering in multicrystalline silicon via thermal treatments

T. Buonassisi, A.A. Istratov, M.A. Marcus, S. Peters, C. Ballif, M. Heuer, T.F. Ciszek, Z. Cai, B. Lai, R. Schindler, and E.R. Weber
Proc. 31st IEEE Photovoltaic Specialists Conference, Lake Buena Vista, USA; pp.1027–1030 (2005)
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Impact of iron contamination in multicrystalline silicon solar cells: Origins, chemical states, and device impacts

T. Buonassisi, M. Heuer, A.A. Istratov, M.A. Marcus, R. Jonczyk, B. Lai, Z. Cai, J. Isenberg, W. Warta, R. Schindler, and E.R. Weber
Proc. 19th European Photovoltaic Solar Energy Conference, Paris, France; pp.488–491 (2004)
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Defects in the deteriorated border layer of block-cast multicrystalline silicon ingots

M. Rinio, C. Ballif, T. Buonassisi, and D. Borchert
Proc. 19th European Photovoltaic Solar Energy Conference, Paris, France; pp.762–765 (2004)
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Application of x-ray synchrotron techniques to the characterization of the chemical nature and recombination activity of grown-in and process-induced defects and impurities in solar cells

T. Buonassisi, O.F. Vyvenko, A.A. Istratov, E.R. Weber, and R. Schindler
MRS Symposium Proceedings 719, 179 (2002)
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Electrical and mechanical defects in solar cell materials and devices

S. Hudelson, K. Hartman, Y.S. Lee, and T. Buonassisi

4th Workshop on the Future Direction of Photovoltaics, Japanese Society for the Promotion of Science, Tokyo, Japan (2008). Read the PDF
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Synchrotron-based infrared spectromicroscopy of oxygen gettering by grain boundaries in multicrystalline silicon

M.D. Pickett, T. Buonassisi, A.A. Istratov, R.F. Clark, S. Narayanan, and E.R. Weber

15th workshop on Crystalline Silicon Solar Cells & Modules: Materials and Processes, Editor: B.L.Sopori, NREL, Golden, CO, pp.178-181 (2005).
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Synchrotron-based spectrally-resolved X-ray beam induced current: a technique to quantify the effect of metal-rich precipitates on minority carrier diffusion length in multicrystalline silicon

T. Buonassisi, A.A. Istratov, M.D. Pickett, M.A. Marcus, G. Hahn, S. Riepe, J. Isenberg, W. Warta, G. Willeke, T.F. Ciszek, and E.R. Weber

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EXAFS studies on Ni11.6Fe2.8Cu0.4Si27.6 precipitates in multicrystalline silicon

M. Heuer, T. Buonassisi, M.A. Marcus, A.A. Istratov, M.D. Pickett, and E.R. Weber

15th workshop on Crystalline Silicon Solar Cells & Modules: Materials and Processes, Editor: B.L.Sopori, NREL, Golden, CO, pp.158-161 (2005).
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Neutron activation analysis study of metal content of multicrystalline silicon for cost-efficient solar cells

A.A. Istratov, T. Buonassisi, R.J. McDonald, A.R. Smith, R. Schindler, J.A. Rand, J.P. Kalejs, and E.R. Weber

Proc. 13th workshop on crystalline silicon solar cell materials and processes, B. L. Sopori, Editor, NREL, Vail, CO, pp.158-161 (2003).
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Experimental procedure for determination of the depth of metal clusters in XBIC/µ-XRF mapping of metal clusters in silicon solar cells

O.F. Vyvenko, T. Buonassisi, A.A. Istratov, and E.R. Weber

Proc. 13th workshop on crystalline silicon solar cell materials and processes, B. L. Sopori, Editor, NREL, Vail, CO, pp.102-105 (2003).
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Statistically meaningful data on the chemical state of iron precipitates in processed multicrystalline silicon using synchrotron-based x-ray absorption spectroscopy

T. Buonassisi, M. Heuer, A.A. Istratov, E.R. Weber, Z. Cai, B. Lai, M.A. Marcus, J. Lu, G.A. Rozgony, R. Schindler, R. Jonczyk, and J. Rand

Proc. 13th workshop on crystalline silicon solar cell materials and processes, B. L. Sopori, Editor, NREL, Vail, CO, pp.96-101 (2003).
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Application of synchrotron radiation based x-ray microprobe techniques for the analysis of recombination activity of metals precipitated at Si/SiGe misfit dislocations

O.F. Vyvenko, T. Buonassisi, A.A. Istratov, E.R. Weber, M. Kittler, and W. Seifert

Proc. 12th workshop on crystalline silicon solar cell materials and processes, B. L. Sopori, Editor, NREL, Breckenridge, CO, pp.111-116 (2002).
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Application of x-ray fluorescence technique to studies of aluminum gettering in silicon


Proc. 12th workshop on crystalline silicon solar cell materials and processes, B. L. Sopori, Editor, NREL, Breckenridge, CO, pp.271-274 (2002).
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Analysis of shunts in multicrystalline silicon solar cells using microprobe x-ray fluorescence technique

T. Buonassisi, O.F. Vyvenko, A.A. Istratov, E.R. Weber, R. Schindler, and G. Hahn

Proc. 12th workshop on crystalline silicon solar cell materials and processes, B. L. Sopori, Editor, NREL, Breckenridge, CO, pp.266-270 (2002).
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Application of x-ray fluorescence microprobe technique for the analysis of fully processed solar cells

O.F. Vyvenko, A.A. Istratov, T. Buonassisi, E.R. Weber, and R. Schindler

Proc. 11th workshop on crystalline silicon solar cell materials and processes, B. L. Sopori, Editor, NREL, Golden, CO, pp.172-176 (2001).
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The bright future of silicon-based photovoltaics


Invited talk at the Intersolar North America Conference, San Francisco, California, USA (2008). Read the PDF
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Electrical and mechanical defects in solar cell materials and devices


Invited talk at the 4th Workshop on the Future Direction of Photovoltaics, Japanese Society for the Promotion of Science, Tokyo, Japan (2008). Read the PDF
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Evolution of stresses in wafer bulks and edges during industrial solar cell processing

T. Buonassisi, S. Reitsma, M.D. Pickett, W. Huang, J. Lesniak, and M.L. Spencer

Plenary presentation at the 22nd European Photovoltaic Solar Energy Conference and Exhibition, Milan, Italy (2007). Read the PDF