Publications

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2017

B. Min, M. Müller, H. Wagner, G. Fischer, R. Brendel, P. P. Altermatt, and H. Neuhaus

A Roadmap Toward 24 % Efficient PERC Solar Cells in Industrial Mass Production Journal Article

IEEE Journal of Photovoltaics 7 (6), 1541-1550, (2017), ISSN: 2156-3381.

Abstract | Links | BibTeX | Tags: Conductivity, Mass production, metallization, Passivated emitter and rear cell (PERC) solar cells, Photovoltaic cells, roadmap, Semiconductor device modeling, silicon, silicon solar cells

M. Rienäcker, M. Bossmeyer, A. Merkle, U. Römer, F. Haase, J. Krügener, R. Brendel, and R. Peibst

Junction resistivity of carrier-selective polysilicon on oxide junctions and its impact on solar cell performance Journal Article

IEEE Journal of Photovoltaics 7 (1), 11-18, (2017), ISSN: 2156-3381.

Abstract | Links | BibTeX | Tags: Aluminum, Back-junction back-contact (BJBC) cells, boron, Conductivity, contact resistivity, Current density, Junctions, Photovoltaic cells, polysilicon, polysilicon on oxide (POLO) junctions, recombination, selective contacts, selectivity

2016

J. Krügener, D. Tetzlaff, Y. Larionova, Y. Barnscheidt, S. Reiter, M. Turcu, R. Peibst, J. -D. Kähler, and T. Wietler

Electrical deactivation of boron in p+-poly/SiOx/crystalline silicon passivating contacts for silicon solar cells Inproceedings

IEEE (Ed.): Proceedings of the 21st International Conference on Ion Implantation Technology (IIT), Tainan, Taiwan, (2016), ISBN: 978-1-5090-2025-6.

Abstract | Links | BibTeX | Tags: Annealing, boron, Conductivity, Junctions, Resistance, silicon, Temperature measurement

F. Kiefer, J. Krügener, F. Heinemeyer, H. J. Osten, R. Brendel, and R. Peibst

Structural investigation of printed Ag/Al contacts on silicon and numerical modeling of their contact recombination Journal Article

IEEE Journal of Photovoltaics 6 (5), 1175-1182, (2016).

Abstract | Links | BibTeX | Tags: Ag/Al paste, boron emitters, Conductivity, Current density, Doping, metallization, Metals, Photovoltaic cells, screen-print contact, silicon, Surface treatment

R. Witteck, D. Hinken, M. R. Vogt, J. Müller, S. Blankemeyer, H. Schulte-Huxel, M. Köntges, K. Bothe, and R. Brendel

Optimized interconnection of passivated emitter and rear cells by experimentally verified modeling Journal Article

IEEE Journal of Photovoltaics 6 (2), 432-439, (2016).

Abstract | Links | BibTeX | Tags: cell interconnection, Conductivity, Optical device fabrication, Optical variables measurement, passivated emitter and rear cells (PERC), Photovoltaic cells, Resistance, Silicon solar cell, solar module, Thyristors, Wires

N. Wehmeier, B. Lim, A. Merkle, A. Tempez, S. Legendre, H. Wagner, A. Nowack, T. Dullweber, and P. P. Altermatt

PECVD BSG diffusion sources for simplified high-efficiency n-PERT BJ and BJBC solar cells Journal Article

IEEE Journal of Photovoltaics 6 (1), 119-125, (2016).

Abstract | Links | BibTeX | Tags: Back-junction back-contact (BJBC) cell, boron, boron diffusion source, codiffusion, Conductivity, Fabrication, Furnaces, n-PERT solar cell, Photovoltaic cells, Plasma measurements, plasma-enhanced chemical vapor deposition (PECVD) boron silicate glass (BSG), silicon, simulation model

2015

H. Mäckel, and P. P. Altermatt

Current Transport Through Lead-Borosilicate Interfacial Glass Layers at the Screen-Printed Silver-Silicon Front Contact Journal Article

IEEE Journal of Photovoltaics 5 (4), 1034-1046, (2015), ISSN: 2156-3381.

Links | BibTeX | Tags: Conductivity, Contact resistance, Electrical resistance measurement, Glass, Lead, silicon, Silicon solar cell, Silver, solar cell metallization, Tunneling

2014

R. Gogolin, M. Turcu, R. Ferré, J. Clemens, N. -P. Harder, R. Brendel, and J. Schmidt

Analysis of series resistance losses in a-Si:H/c-Si heterojunction solar cells Journal Article

IEEE Journal of Photovoltaics 4 (5), 1169-1176, (2014).

Links | BibTeX | Tags: Amorphous silicon, Conductivity, Contact resistance, heterojunctions, Hydrogen, Indium tin oxide, Photovoltaic cells, Resistance, Series Resistance, Silicon heterojunction solar cells

S. Eidelloth, and R. Brendel

Analytical theory for extracting specific contact resistances of thick samples from the transmission line method Journal Article

IEEE Electron Device Letters 35 (1), 9-11, (2014).

Links | BibTeX | Tags: Conductivity, Conformal mapping, Contact resistance, Finite element analysis, Geometry, Mathematical model, Photovoltaic cells, Resistance, silicon

M. Müller, P. P. Altermatt, H. Wagner, and G. Fischer

Sensitivity Analysis of Industrial Multicrystalline PERC Silicon Solar Cells by Means of 3-D Device Simulation and Metamodeling Journal Article

IEEE Journal of Photovoltaics 4 (1), 107-113, (2014), ISSN: 2156-3381.

Links | BibTeX | Tags: 3-D device simulation, Analytical models, Computational modeling, Conductivity, Crystalline Si solar cells, Indexes, Metals, Metamodeling, passivated emitter and rear cell (PERC), Photovoltaic cells, sensitivity analysis

2013

T. Dullweber, C. Kranz, U. Baumann, R. Hesse, D. Walter, J. Schmidt, P. Altermatt, and R. Brendel

Silicon wafer material options for highly efficient p-type PERC solar cells Inproceedings

IEEE (Ed.): 2013 IEEE 39th Photovoltaic Specialists Conference (PVSC) , 3074-3078, Tampa, FL, USA, (2013), ISBN: 978-1-4799-3299-3.

Links | BibTeX | Tags: charge carrier lifetime, Conductivity, Degradation, light-induced degradation, PERC, Photovoltaic cells, Semiconductor device modeling, silicon, silicon solar cells

2012

J. H. Petermann, T. Ohrdes, P. P. Altermatt, S. Eidelloth, and R. Brendel

19% efficient thin-film crystalline silicon solar cells from layer transfer using porous silicon: a loss analysis by means of three-dimensional simulations Journal Article

IEEE Transactions on Electron Devices 59 (4), 909-917, (2012).

Links | BibTeX | Tags: Conductivity, kerfless, layer transfer, loss analysis, metallization, Photovoltaic cells, porous silicon (PSI), Resistance, silicon, Solid modeling, Surface treatment

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 Journal Article

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

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

S. Gatz, T. Dullweber, and R. Brendel

Evaluation of Series Resistance Losses in Screen-Printed Solar Cells With Local Rear Contacts Journal Article

IEEE Journal of Photovoltaics 1 (1), 37-42, (2011), ISSN: 2156-3381.

Links | BibTeX | Tags: Conductivity, Electrical resistance measurement, metallization, passivation, Photovoltaic cells, photovoltaics, Resistance, silicon, Solar Cells

2009

E. G. Rojas, C. Hampe, H. Plagwitz, and R. Brendel

Formation of mesoporous gallium arsenide for lift-off processes by electrochemical etching Inproceedings

IEEE (Ed.): 2009 34th IEEE Photovoltaic Specialists Conference (PVSC), 001086-001089, Philadelphia, PA, USA, (2009), ISSN: 0160-8371.

Links | BibTeX | Tags: Conductive films, Conductivity, Epitaxial growth, Etching, Gallium arsenide, Glass, Mesoporous materials, Molecular beam epitaxial growth, Substrates, X-ray scattering

2008

B. Hoex, J. Schmidt, M. C. M. van de Sanden, and W. M. M. Kessels

Crystalline silicon surface passivation by the negative-charge-dielectric Al2O3 Inproceedings

IEEE (Ed.): 2008 33rd IEEE Photovoltaic Specialists Conference, 1-4, San Diego, CA, USA, (2008), ISSN: 0160-8371.

Links | BibTeX | Tags: atomic layer deposition, Conductivity, Crystallization, Doping, passivation, Photovoltaic cells, Plasma temperature, silicon, Substrates, Velocity measurement

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