On the determination of the emitter saturation current density from lifetime measurements of silicon devices

H Mäckel, K Varner - Progress in Photovoltaics: Research and …, 2013 - Wiley Online Library
Contactless photoconductance measurements are commonly used to extract the emitter
saturation current density (Joe) for crystalline silicon samples containing an emitter on the …

Enhanced lateral current transport via the front N+ diffused layer of n‐type high‐efficiency back‐junction back‐contact silicon solar cells

F Granek, M Hermle, DM Huljić… - Progress in …, 2009 - Wiley Online Library
N‐type back‐contact back‐junction solar cells were processed with the use of industrially
relevant structuring technologies such as screen‐printing and laser processing. Application …

Modeling and optimization study of industrial n-type high-efficiency back-contact back-junction silicon solar cells

S Kluska, F Granek, M Rüdiger, M Hermle… - Solar Energy Materials …, 2010 - Elsevier
The knowledge of the loss mechanisms in industrial back-contact back-junction (BC BJ)
silicon solar cells and their dependence on geometrical and substrate parameters provides …

High efficiency n-type emitter-wrap-through silicon solar cells

F Kiefer, C Ulzhöfer, T Brendemühl… - IEEE Journal of …, 2011 - ieeexplore.ieee.org
In the ALBA-II project, Q-Cells SE, Bitterfeld-Wolfen, Germany, and the Institute for Solar
Energy Research Hamelin, Emmerthal, Germany, are developing high-efficiency emitter …

Comparison of emitter saturation current densities determined by injection‐dependent lifetime spectroscopy in high and low injection regimes

C Reichel, F Granek, J Benick… - Progress in …, 2012 - Wiley Online Library
The determination of the emitter saturation current density J0e of symmetrical test structures,
analyzed by injectiondependent lifetime spectroscopy (IDLS), in high as well as in low …

Simplified process for high efficiency, self-aligned IBC c-Si solar cells combining ion implantation and epitaxial growth: Design and fabrication

A Ingenito, O Isabella, M Zeman - Solar Energy Materials and Solar Cells, 2016 - Elsevier
Front and rear contacted wafer-based c-Si solar cells characterized by P-diffused emitter
and Al-based back surface field currently constitute the dominant solar cell architecture in …

Back-contact back-junction silicon solar cells under UV illumination

F Granek, C Reichel - Solar energy materials and solar cells, 2010 - Elsevier
The performance of n-type Si back-contact back-junction (BC-BJ) solar cells under
illumination with high energy ultraviolet (UV) photons was investigated. The impact of the …

Positive effects of front surface field in high-efficiency back-contact back-junction n-type silicon solar cells

F Granek, M Hermle, C Reichel, A Grohe… - 2008 33rd IEEE …, 2008 - ieeexplore.ieee.org
The role of the phosphorus-doped front surface field (FSF) in n-type back-contact back-
junction silicon solar cells was analyzed. The FSF improves the quality of the front surface …

Analysis of the diffused front surface field of n-type silicon solar cells with a-Si/c-Si heterojunction rear emitter

M Bivour, M Rüdiger, C Reichel, KU Ritzau, M Hermle… - Energy Procedia, 2011 - Elsevier
In this work, we focus on the optimization of small-area n+ np+ n-type silicon solar cells
featuring an amorphous/crystalline silicon heterojunction (a-Si: H/c-Si SHJ) rear emitter. For …

Analysis of selective phosphorous laser doping in high-efficiency solar cells

D Kray, KR McIntosh - IEEE Transactions on Electron Devices, 2009 - ieeexplore.ieee.org
This paper focuses on the analysis of local phosphorous laser doping in high-efficiency
solar cells. Those so-called selective emitters are intended to reduce the contact …