Publications

J. Hofstetter

29

Evolution of LeTID defects in p-type multicrystalline silicon during degradation and regeneration

M.A. Jensen, A.E. Morishige, J. Hofstetter, D. Berney Needleman, and T. Buonassisi
IEEE Journal of Photovoltaics 7, 980-987 (2017)
28

Engineering solutions and root-cause analysis for light-induced degradation in p-type multicrystalline silicon PERC modules

K. Nakayashiki, J. Hofstetter, A.E. Morishige, T.-T.A. Li, D. Berney Needleman, M.A. Jensen, and T. Buonassisi
IEEE Journal of Photovoltaics DOI: 10.1109/JPHOTOV.2016.2556981 (2016)
27

Synchrotron-based investigation of transition-metal getterability in n-type multicrystalline silicon

A.E. Morishige, M.A. Jensen, J. Hofstetter, P.X.T. Yen, C. Wang, B. Lai, D.P. Fenning, and T. Buonassisi
Applied Physics Letters 108, 202104 (2016)
26

High-performance and traditional multicrystalline silicon: Comparing gettering responses and lifetime-limiting defects

S. Castellanos, K.E. Ekstrøm, A. Autruffe, M.A. Jensen, A.E. Morishige, J. Hofstetter, P.X.T. Yen, B. Lai, G. Stokkan, C. del Cañizo, and T. Buonassisi
IEEE Journal of Photovoltaics 6, 632-640 (2016)
25

Exceptional gettering response of epitaxially grown kerfless silicon

D.M. Powell, V.P. Markevich, J. Hofstetter, M.A. Jensen, A.E. Morishige, S. Castellanos, B. Lai, A.R. Peaker, and T. Buonassisi
Journal of Applied Physics 119, 065101 (2016)
24

Material requirements for the adoption of unconventional silicon crystal and wafer growth techniques for high-efficiency solar cells

J. Hofstetter, C. del Cañizo, H. Wagner, S. Castellanos, and T. Buonassisi
Progress in Photovoltaics 24, 122–132 (2016)
23

Combined impact of heterogeneous lifetime and gettering on solar cell performance

A.E. Morishige, H. Wagner, J. Hofstetter, I. Avci, C. del Cañizo, and T. Buonassisi
Energy Procedia 77, 119-128 (2015)
22

Two-step annealing study of cuprous oxide for photovoltaic applications

M. Lloyd, S.C. Siah, R.E. Brandt, J. Serdy, S.W. Johnston, J. Hofstetter, Y.S. Lee, B. McCandless, and T. Buonassisi
IEEE Journal of Photovoltaics 5, 1476–1481 (2015)
21

Building intuition of iron evolution during solar cell processing through analysis of different process models

A.E. Morishige, H.S. Laine, J. Schön, A. Haarahiltunen, J. Hofstetter, C. del Cañizo, M.C. Schubert, and T. Buonassisi
Applied Physics A 120, 1357 (2015)
20

Synchrotron-based analysis of chromium distributions in multicrystalline silicon for solar cells

M.A. Jensen, J. Hofstetter, A.E. Morishige, G. Coletti, B. Lai, D.P. Fenning, and T. Buonassisi
Applied Physics Letters 106, 202104 (2015)
19

Sorting metrics for customized phosphorus diffusion gettering

J. Hofstetter, D.P. Fenning, D.M. Powell, A.E. Morishige, H. Wagner, and T. Buonassisi
IEEE Journal of Photovoltaics 4, 1421 (2014)
18

Investigation of lifetime-limiting defects after high-temperature phosphorus diffusion in high-iron content multicrystalline silicon

D.P. Fenning, A.S. Zuschlag, A. Frey, J. Hofstetter, M.I. Bertoni, G. Hahn, and T. Buonassisi
IEEE Journal of Photovoltaics 4, 866–873 (2014)
17

Effective lifetimes exceeding 300 μs in gettered p-type epitaxial kerfless silicon for photovoltaics

D.M. Powell, J. Hofstetter, D.P. Fenning, R. Hao, T.S. Ravi, and T. Buonassisi
Applied Physics Letters 103, 263902 (2013)
16

Iron management in multicrystalline silicon through predictive simulation: point defects, precipitates, and structural defect interactions

J. Hofstetter, D.P. Fenning, D.M. Powell, A.E. Morishige, and T. Buonassisi
Solid State Phenomena 205–206, 15–25 (2013)
15

The impact of dislocation structure on impurity decoration of dislocation clusters in multicrystalline silicon

M.M. Kivambe, G. Stokkan, T. Ervik, S. Castellanos, J. Hofstetter, and T. Buonassisi
Solid State Phenomena 205–206, 71–76 (2013)
14

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)
13

Precipitated iron: A limit on gettering efficacy in multicrystalline silicon

D.P. Fenning, J. Hofstetter, M.I. Bertoni, G. Coletti, B. Lai, C. del Cañizo, and T. Buonassisi
Journal of Applied Physics 113, 044521 (2013)
12

Dislocation density reduction during impurity gettering in multicrystalline silicon

H.J. Choi, M.I. Bertoni, J. Hofstetter, D.P. Fenning, D.M. Powell, S. Castellanos, and T. Buonassisi
IEEE Journal of Photovoltaics 3, 189-198 (2013)
11

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)
10

Engineering metal precipitate size distributions to enhance gettering in multicrystalline silicon

J. Hofstetter, D.P. Fenning, J. Lelièvre, C. del Cañizo, and T. Buonassisi
Physica Status Solidi A 209, 1861-1865 (2012)
9

Simulated co-optimization of crystalline silicon solar cell throughput and efficiency using continuously ramping phosphorus diffusion profiles

A.E. Morishige, D.P. Fenning, J. Hofstetter, D.M. Powell, and T. Buonassisi
Proc. 38th IEEE Photovoltaic Specialists Conference, Austin, TX, USA (2012)


8

Towards the tailoring of P diffusion gettering to as-grown silicon material properties

J. Hofstetter, J.-F. Lelièvre, D.P. Fenning, M.I. Bertoni, T. Buonassisi, and C. del Cañizo
Solid State Phenomena 178–179, 158–165 (2011)
7

Iron distribution in silicon after solar cell processing: Synchrotron analysis and predictive modeling

D.P. Fenning, J. Hofstetter, M.I. Bertoni, S. Hudelson, M. Rinio, J.-F. Lelièvre, B. Lai, C. del Cañizo, and T. Buonassisi
Applied Physics Letters 98, 162103 (2011)
6

Enhanced iron gettering by short, optimized low-temperature annealing after phosphorus emitter diffusion for industrial silicon solar cell processing

J. Hofstetter, J. Lelièvre, D.P. Fenning, M.I. Bertoni, T. Buonassisi, A. Luque, and C. del Cañizo
Physica Status Solidi (c) 3, 759–762 (2011)
5

Impurity-to-efficiency simulator: Predictive simulation of silicon solar cell performance based on iron content and distribution

J. Hofstetter, D.P. Fenning, M.I. Bertoni, J.-F. Lelièvre, C. del Cañizo, and T. Buonassisi
Progress in Photovoltaics 19, 487–497 (2011)

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Online Tool
Featured in MIT News

4

Impurity-to-efficiency simulator: Predictive simulation of solar cell efficiencies based on measured metal distribution and cell processing conditions

J. Hofstetter, D.P. Fenning, M.I. Bertoni, J.-F. Lelièvre, T. Buonassisi, and C. del Cañizo
Proc. 25th European Photovoltaic Solar Energy Conference, Valencia, Spain (2010)

See also: Journal Article

3

Synchrotron-based microanalysis of iron distribution after thermal processing and predictive modeling of resulting solar cell efficiency

D.P. Fenning, J. Hofstetter, M.I. Bertoni, J. Lelièvre, C. del Cañizo, and T. Buonassisi
Proc. 35th IEEE Photovoltaic Specialists Conference, Honolulu, HI, USA (2010)
2

Simulating the evolution of the impurity content and distribution in a mc-Si wafer during solar cell processing

J. Hofstetter, C. del Cañizo, T. Buonassisi, D.P. Fenning, M.I. Bertoni, J. Lelièvre, and A. Luque
Proc. 24th European Photovoltaic Solar Energy Conference, Hamburg, Germany; pp.2019-2022 (2009)
1

Co-optimizing the phosphorous diffusion time-temperature profile for gettering and throughput

A.E. Morishige, D.P. Fenning, J. Hofstetter, and T. Buonassisi

5th International Workshop on Crystalline Silicon Solar Cells – CSSC-5 , Boston, USA 1–3 November (2011)