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2020

M. Winter, S. Bordihn, R. Peibst, R. Brendel, and J. Schmidt

Degradation and Regeneration of n+-Doped Poly-Si Surface Passivation on p-Type and n-Type Cz-Si Under Illumination and Dark Annealing Artikel

IEEE Journal of Photovoltaics 10 (2), 423-430, (2020), ISSN: 2156-3403.

Abstract | Links | BibTeX | Schlagwörter: Carrier lifetime, Degradation, Poly-Si, Poly-Si on oxide (POLO), silicon, surface passivation

2019

M. Winter, D. Walter, D. Bredemeier, and J. Schmidt

Light-induced lifetime degradation effects at elevated temperature in Czochralski-grown silicon beyond boron-oxygen-related degradation Artikel

Solar Energy Materials and Solar Cells 201 , 110060, (2019), ISSN: 0927-0248.

Abstract | Links | BibTeX | Schlagwörter: boron-oxygen defect, Carrier lifetime, Czochralski-grown silicon, LeTID

D. Bredemeier, D. C. Walter, R. Heller, and J. Schmidt

Impact of Hydrogen-Rich Silicon Nitride Material Properties on Light-Induced Lifetime Degradation in Multicrystalline Silicon Artikel

physica status solidi (RRL) – Rapid Research Letters 13 (8), 1900201, (2019).

Abstract | Links | BibTeX | Schlagwörter: Carrier lifetime, Hydrogen, LeTID defects, light-induced lifetime degradation, silicon nitride, ulticrystalline silicon

2018

D. Bredemeier, D. C. Walter, and J. Schmidt

Possible Candidates for Impurities in mc-Si Wafers Responsible for Light-Induced Lifetime Degradation and Regeneration Artikel

Solar RRL 2 (1), 1700159, (2018), ISSN: 2367-198X.

Abstract | Links | BibTeX | Schlagwörter: Carrier lifetime, Degradation, diffusion, Multicrystalline silicon

B. Veith-Wolf, R. Witteck, A. Morlier, H. Schulte-Huxel, M. R. Vogt, and J. Schmidt

Spectra-Dependent Stability of the Passivation Quality of Al2O3/c-Si Interfaces Artikel

IEEE Journal of Photovoltaics 8 (1), 96-102, (2018), ISSN: 2156-3381.

Abstract | Links | BibTeX | Schlagwörter: Accelerated testing, Al2O3, Aluminum oxide, Carrier lifetime, crystalline silicon, Degradation, Long-term stability, silicon nitride (SiNx), surface passivation, ultraviolet (UV) stability

2017

D. C. Walter, R. Falster, V. V. Voronkov, and J. Schmidt

On the equilibrium concentration of boron-oxygen defects in crystalline silicon Artikel

Solar Energy Materials and Solar Cells 173 , 33-36, (2017), ISBN: 0927-0248, (Proceedings of the 7th international conference on Crystalline Silicon Photovoltaics).

Abstract | Links | BibTeX | Schlagwörter: boron-oxygen, Carrier lifetime, Czochralski silicon

J. Krügener, F. Haase, M. Rienäcker, R. Brendel, H. J. Osten, and R. Peibst

Improvement of the SRH bulk lifetime upon formation of n-type POLO junctions for 25% efficient Si solar cells Artikel

Solar Energy Materials and Solar Cells 173 , 85-91, (2017), ISSN: 0927-0248, (Proceedings of the 7th international conference on Crystalline Silicon Photovoltaics).

Abstract | Links | BibTeX | Schlagwörter: Carrier lifetime, Gettering, passivating contact, POLO, polysilicon, Silicon solar cell, solar cell

D. Bredemeier, D. Walter, and J. Schmidt

Light-induced lifetime degradation in high-performance multicrystalline silicon: Detailed kinetics of the defect activation Artikel

Solar Energy Materials and Solar Cells 173 , 2-5, (2017), ISSN: 0927-0248, (Proceedings of the 7th international conference on Crystalline Silicon Photovoltaics).

Abstract | Links | BibTeX | Schlagwörter: Carrier lifetime, Degradation, Multicrystalline silicon

V. Steckenreiter, D. C. Walter, and J. Schmidt

Two-stage permanent deactivation of the boron-oxygen-related recombination center in crystalline silicon Artikel

Energy Procedia 124 (Supplement C), 799-805, (2017), ISSN: 1876-6102, (7th International Conference on Silicon Photovoltaics, SiliconPV 2017, 3-5 April 2017, Freiburg, Germany).

Abstract | Links | BibTeX | Schlagwörter: boron-oxygen defect, Carrier lifetime, Czochralski silicon, Permanent deactivation

2016

V. Steckenreiter, J. Hensen, A. Knorr, R. Niepelt, R. Brendel, and S. Kajari-Schröder

Thermomechanical Spalling of Epitaxially Grown Silicon from Porosified Substrates Artikel

Energy Procedia 92 , 873-879, (2016), ISSN: 1876-6102, (Proceedings of the 6th International Conference on Crystalline Silicon Photovoltaics (SiliconPV 2016)).

Abstract | Links | BibTeX | Schlagwörter: Carrier lifetime, exfoliation, kerf-free, layer transfer, spalling, stress-indusing layer

B. Veith-Wolf, R. Witteck, A. Morlier, H. Schulte-Huxel, and J. Schmidt

Effect of UV illumination on the passivation quality of AlOx/c-Si interfaces Inproceedings

IEEE (Hrsg.): 2016 IEEE 43rd Photovoltaic Specialists Conference (PVSC), 1173-1178, Portland, OR, USA, (2016), ISBN: 978-1-5090-2725-5.

Abstract | Links | BibTeX | Schlagwörter: Aluminum oxide, Annealing, Carrier lifetime, crystalline silicon, Degradation, Firing, Glass, Lifetime estimation, Lighting, passivation, silicon nitride, surface passivation, UV stability

V. Steckenreiter, J. Hensen, A. Knorr, S. Kajari-Schröder, and R. Brendel

Reuse of substrate wafers for the porous silicon layer transfer Artikel

IEEE Journal of Photovoltaics 6 (3), 783-790, (2016).

Abstract | Links | BibTeX | Schlagwörter: Carrier lifetime, charge carrier lifetime, Contamination, Epitaxial growth, epitaxial layer, Epitaxial layers, layer transfer, Photovoltaic systems, porous silicon (PSI) process, silicon, substrate reuse, Substrates

2014

D. C. Walter, B. Lim, K. Bothe, R. Falster, V. V. Voronkov, and J. Schmidt

Lifetimes exceeding 1 ms in 1-Ohm cm boron-doped Cz-silicon Artikel

Solar Energy Materials and Solar Cells 131 , 51-57, (2014), (SiliconPV 2014).

Links | BibTeX | Schlagwörter: boron-oxygen defect, Carrier lifetime, permanent recovery, Rapid thermal annealing, RTA, silicon

R. Niepelt, J. Hensen, A. Knorr, V. Steckenreiter, S. Kajari-Schröder, and R. Brendel

High-quality Exfoliated Crystalline Silicon Foils for Solar Cell Applications Artikel

Energy Procedia 55 , 570-577, (2014), ISSN: 1876-6102, (Proceedings of the 4th International Conference on Crystalline Silicon Photovoltaics (SiliconPV 2014)).

Links | BibTeX | Schlagwörter: Carrier lifetime, exfoliation, kerf-free, layer transfer, photovoltaic, spalling, wafering

2013

S. Herlufsen, D. Hinken, M. Offer, J. Schmidt, and K. Bothe

Validity of calibrated photoluminescence lifetime measurements of silicon wafers for arbitrary lifetime and injection ranges Artikel

IEEE Journal of Photovoltaics 3 (1), 381-386, (2013).

Links | BibTeX | Schlagwörter: calibration, Carrier lifetime, Charge carrier density, charge carrier lifetime, crystalline silicon wafers, Density measurement, Imaging, photoconductance (PC), photoluminescence, photoluminescence (PL), Photonics, silicon

2012

M. Ernst, U. Zywietz, and R. Brendel

Point contact openings in surface passivated macroporous silicon layers Artikel

Solar Energy Materials and Solar Cells 105 , 113-118, (2012).

Links | BibTeX | Schlagwörter: Carrier lifetime, Carrier transport, Macroporous Si, modeling, Numerical modeling, Porous Si

2011

J. Muller, K. Bothe, S. Gatz, H. Plagwitz, G. Schubert, and R. Brendel

Contact Formation and Recombination at Screen-Printed Local Aluminum-Alloyed Silicon Solar Cell Base Contacts Artikel

IEEE Transactions on Electron Devices 58 (10), 3239-3245, (2011), ISSN: 0018-9383.

Links | BibTeX | Schlagwörter: Carrier lifetime, Conductivity, Geometry, Laser ablation, local back surface field (LBSF), metallization, Scanning electron microscopy, silicon, silicon solar cells, Spontaneous emission

J. Müller, K. Bothe, S. Gatz, H. Plagwitz, G. Schubert, and R. Brendel

Recombination at local aluminum-alloyed silicon solar cell base contacts by dynamic infrared lifetime mapping Artikel

Energy Procedia 8 , 337-342, (2011), ISSN: 1876-6102, (Proceedings of the SiliconPV 2011 Conference (1st International Conference on Crystalline Silicon Photovoltaics)).

Links | BibTeX | Schlagwörter: Carrier lifetime, Laser ablation, local back surface field, silicon solar cells

M. Ernst, and R. Brendel

Modeling effective carrier lifetimes of passivated macroporous silicon layers Artikel

Solar Energy Materials and Solar Cells 95 (4), 1197-1202, (2011), ISSN: 0927-0248.

Links | BibTeX | Schlagwörter: Carrier lifetime, Carrier transport, Macroporous Si, modeling, Porous Si

2010

R. Gogolin, N. P. Harder, and R. Brendel

Trapping-related recombination of charge carriers in silicon Inproceedings

IEEE (Hrsg.): 2010 35th IEEE Photovoltaic Specialists Conference, 000443-000446, Honolulu, HI, USA, (2010), ISSN: 0160-8371.

Links | BibTeX | Schlagwörter: Carrier lifetime, elemental semiconductors, silicon

K. Bothe, R. Krain, R. Falster, and R. Sinton

Determination of the bulk lifetime of bare multicrystalline silicon wafers Artikel

Progress in Photovoltaics: Research and Applications 18 (3), 204-208, (2010), ISSN: 1099-159X.

Links | BibTeX | Schlagwörter: Carrier lifetime, Multicrystalline, QSSPC, silicon, solar cell, wafer

2009

K. Ramspeck, K. Bothe, J. Schmidt, and R. Brendel

Dynamic ILM – An Approach to Infrared-Camera Based Dynamical Lifetime Imaging Inproceedings

WIP (Hrsg.): 24th European Photovoltaic Solar Energy Conference, 871-876, Hamburg, Germany, (2009), ISBN: 3-936338-25-6.

Links | BibTeX | Schlagwörter: Carrier lifetime, Imaging, Multicrystalline, Silicon (Si), Thermography

J. Schmidt, N. Thiemann, R. Bock, and R. Brendel

Lifetimes in aluminum-doped silicon Inproceedings

IEEE (Hrsg.): 2009 34th IEEE Photovoltaic Specialists Conference (PVSC), 001732-001735, Philadelphia, PA, USA, (2009), ISSN: 0160-8371.

Links | BibTeX | Schlagwörter: aluminium, Carrier lifetime, elemental semiconductors, silicon

2008

K. Ramspeck, K. Bothe, J. Schmidt, and R. Brendel

Correlation between spatially resolved solar cell efficiency and carrier lifetime of multicrystalline silicon Artikel

Journal of Materials Science: Materials in Electronics 19 (1), 4-8, (2008), ISSN: 1573-482X.

Links | BibTeX | Schlagwörter: Carrier lifetime, maximum power point, multricrystalline silicon, solar cell, solar cell efficiency

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