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Realistic simulation of polycrystalline CIGS absorbers and experimental verification

Published online by Cambridge University Press:  20 March 2013

C. Maragliano ,
M. Stefancich ,
S. Rampino  and
L. Colace
C. Maragliano
Affiliation:
NooEL-Nonlinear Optics and OptoElectronics Lab., Department of Electronic Engineering, INFN, CNISM, University “Roma Tre,” Via della Vasca Navale 84, 00146 Rome, Italy
M. Stefancich*
Affiliation:
CNR-IMEM, Parco Area delle Scienze 37/A - 43124 Parma, Italy - Phone: +39052126911 - Fax +390521269206 Masdar Institute of Science and Technology, Masdar City, Abu Dhabi, United Arab Emirates
S. Rampino
Affiliation:
CNR-IMEM, Parco Area delle Scienze 37/A - 43124 Parma, Italy - Phone: +39052126911 - Fax +390521269206
L. Colace
Affiliation:
NooEL-Nonlinear Optics and OptoElectronics Lab., Department of Electronic Engineering, INFN, CNISM, University “Roma Tre,” Via della Vasca Navale 84, 00146 Rome, Italy
*
*[email protected]
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Abstract

Cu(InGa)Se2 solar cells modeling is challenging due to their complex electronic structure, to the presence of interface states between layer and grains and to the microcrystalline structure of the absorber. Here we present a ISE-TCAD based realistic absorber 3D model, with the specific objective to take into account, among several effects, these challenging aspects. The CdS/Cu(InGa)Se2 solar cell is modeled as an array of columnar microcells, connected in parallel, mimicking the polycrystalline nature of the absorber. The model optical and electrical parameters are optimized based on a review of available experimental material characterization and realization results. Simulation outcomes are compared with experimental data in order to validate the model.

Keywords

thin filmphotovoltaicsimulation
Type
Articles
Information
MRS Online Proceedings Library (OPL) , Volume 1493: Symposium E/H – Photovoltaic Technologies, Devices and Systems Based on Inorganic Materials, Small Organic Molecules and Hybrids , 2013 , pp. 153 - 160
Copyright
Copyright © Materials Research Society 2013 

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