A study on the optics of copper indium gallium (di)selenide (CIGS) solar cells with ultra-thin absorber layers | Zendy

Man Xu | Zendy; Arthur J. H. Wachters | Zendy; J. van Deelen | Zendy; Maurice C. D. Mourad | Zendy; Pascal Buskens | Zendy

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A study on the optics of copper indium gallium (di)selenide (CIGS) solar cells with ultra-thin absorber layers

Author(s) -

Man Xu,

Arthur J. H. Wachters,

J. van Deelen,

Maurice C. D. Mourad,

Pascal Buskens

Publication year - 2014

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.22.00a425

Subject(s) - copper indium gallium selenide solar cells , gallium , materials science , indium , optoelectronics , layer (electronics) , absorption (acoustics) , optics , selenide , zinc selenide , thin film , cadmium sulfide , solar cell , selenium , nanotechnology , metallurgy , composite material , physics

We present a systematic study of the effect of variation of the zinc oxide (ZnO) and copper indium gallium (di)selenide (CIGS) layer thickness on the absorption characteristics of CIGS solar cells using a simulation program based on finite element method (FEM). We show that the absorption in the CIGS layer does not decrease monotonically with its layer thickness due to interference effects. Ergo, high precision is required in the CIGS production process, especially when using ultra-thin absorber layers, to accurately realize the required thickness of the ZnO, cadmium sulfide (CdS) and CIGS layer. We show that patterning the ZnO window layer can strongly suppress these interference effects allowing a higher tolerance in the production process.

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