Optical study of back-contacted CIGS solar cells

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Optical study of back-contacted CIGS solar cells

Journal Article (2019)

Author(s)

Nasim Rezaei (TU Delft - Photovoltaic Materials and Devices)

Olindo Isabella (TU Delft - Photovoltaic Materials and Devices)

P. Moya (TU Delft - Photovoltaic Materials and Devices)

Z. Vroon (TNO - Brightlands Materials Center)

M. Zeman (TU Delft - Photovoltaic Materials and Devices)

Research Group

Photovoltaic Materials and Devices

DOI related publication

https://doi.org/10.1364/OE.27.00A269

To reference this document use:

https://resolver.tudelft.nl/uuid:2707ec4c-1983-4d0b-bfd5-e24d7127ecc0

More Info

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Publication Year

2019

Language

English

Research Group

Photovoltaic Materials and Devices

Issue number

8

Volume number

27

Pages (from-to)

A269-A279

Abstract

A novel back-contacted solar cell based on a submicron copper indium gallium (di)selenide (CIGS) absorber is proposed and optically investigated. First, charge carrier collection feasibility is studied by band diagram analysis. Then, two back-contacted configurations are suggested and optimized for maximum current production. The results are compared with a reference front/back-contacted CIGS solar cell with a 750-nm-thick absorber. Current density production of 38.84 mA/cm ² is predicted according to our simulations for a realistic front-side texturing. This shows more than 38% improvement in optical performance compared to the reference cell and only 7.7% deviation from the theoretical Green absorption benchmark.

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