Title
A study on the optics of copper indium gallium (di)selenide (CIGS) solar cells with ultra-thin absorber layers
Author
Xu, M.
Wachters, A.J.H.
van Deelen, J.
Mourad, M.C.D.
Buskens, P.J.P.
Publication year
2014
Abstract
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. © 2014 Optical Society of America.
Subject
Physics & Electronics Mechanics, Materials and Structures
OPT - Optics TFT - Thin Film Technology MIP - Materials for Integrated Products
TS - Technical Sciences
High Tech Systems & Materials
Electronics
Industrial Innovation
Cadmium sulfide
Copper
Gallium
Indium
Interference suppression
Production engineering
Solar cells
Absorption characteristics
CIGS solar cells
Interference effects
Layer thickness
Production process
Simulation program
Systematic study
Zinc oxide (ZnO)
To reference this document use:
http://resolver.tudelft.nl/uuid:7a0955c7-9ffb-4394-b073-934b86057f63
TNO identifier
492955
Publisher
Optical Society of America
ISSN
1094-4087
Source
Optics Express, 22 (5), A425-A437
Document type
article