Memorias de investigación
Communications at congresses:
Combined impact of heterogeneous lifetime and gettering on solar cell performance
Year:2015
Research Areas
  • Silicon,
  • Solar cells
Information
Abstract
We couple numerical process and device simulations to provide a framework for understanding the combined effects of as-grown wafer impurity distribution, processing parameters, and solar cell architecture. For this study, we added the Impurity-to-Efficiency simulator to Synopsys. Sentaurus Process software using the Alagator Scripting Language. Our results quantify how advanced processing can eliminate differences in efficiency due to different as-grown impurity concentrations and due to different area fractions of defective wafer regions. We identify combinations of as-grown impurity distributions and process parameters that produce solar cells limited by point defects and those that are limited by precipitated impurities. Gettering targeted at either point defect or precipitate reduction can then be designed and applied to increase cell efficiency. We also visualize the post-processing iron and total recombination distributions in 2D maps of the wafer cross-section. PV researchers and companies can input their initial iron distributions and processing parameters into our software and couple the resulting process simulation results with a solar cell device design of interest to conduct their own analyses. The Alagator scripts we developed are freely available online at http://pv.miteduimpurity-to-efficiency-i2e-simulator-for-sentaurus-tcad/.
International
Si
Congress
5th International Conference on Silicon Photovoltaics, Siliconpv 2015
960
Place
Konstanz (Alemania)
Reviewers
Si
ISBN/ISSN
1876-6102
10.1016/j.egypro.2015.07.019
Start Date
23/03/2015
End Date
25/03/2015
From page
119
To page
128
Energy Procedia - Special Issue. Vol 77
Participants
  • Autor: A.E. Morishige
  • Autor: H. Wagner
  • Autor: J. Hofstetter
  • Autor: I. Avci
  • Autor: Carlos del Cañizo Nadal UPM
  • Autor: T. Buonassisi
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Silicio y Nuevos Conceptos para Células Solares
  • Centro o Instituto I+D+i: Instituto de Energía Solar
  • Departamento: Electrónica Física