An Illumination- and Temperature-Dependent Analytical Model for Copper Indium Gallium Diselenide (CIGS) Solar Cells

Journal Article · Mon Jul 18 00:00:00 EDT 2016 · IEEE Journal of Photovoltaics

DOI:https://doi.org/10.1109/JPHOTOV.2016.2583790· OSTI ID:1376668

Sun, Xingshu ^[1]; Silverman, Timothy ^[2]; Garris, Rebekah ^[2]; Deline, Chris ^[2]; Alam, Muhammad Ashraful ^[1]

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1. Purdue Univ., West Lafayette, IN (United States)
2. National Renewable Energy Lab. (NREL), Golden, CO (United States)

In this study, we present a physics-based analytical model for copper indium gallium diselenide (CIGS) solar cells that describes the illumination- and temperature-dependent current-voltage (I-V) characteristics and accounts for the statistical shunt variation of each cell. The model is derived by solving the drift-diffusion transport equation so that its parameters are physical and, therefore, can be obtained from independent characterization experiments. The model is validated against CIGS I-V characteristics as a function of temperature and illumination intensity. This physics-based model can be integrated into a large-scale simulation framework to optimize the performance of solar modules, as well as predict the long-term output yields of photovoltaic farms under different environmental conditions.

• Research Organization: National Renewable Energy Lab. (NREL), Golden, CO (United States)
• Sponsoring Organization: USDOE Office of Energy Efficiency and Renewable Energy (EERE), Renewable Power Office. Solar Energy Technologies Office
• Grant/Contract Number: AC36-08GO28308
• OSTI ID: 1376668
• Report Number(s): NREL/JA-5J00-66398
• Journal Information: IEEE Journal of Photovoltaics, Vol. 6, Issue 5; ISSN 2156-3381
• Publisher: IEEE
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
analytical model
compact model
copper indium gallium diselenide (CIGS)
heterojunction
illumination dependent
temperature dependent