Skip to Main content Skip to Navigation
Journal articles

Advanced light management based on periodic textures for Cu(In,Ga)Se$_2$ thin-film solar cells

Abstract : We have used 3-D optical modelling to investigate light management concepts based on periodic textures and material optimization for photovoltaic devices based on Cu(In,Ga)Se$_2$ (CIGS) absorber material. At first, calibration of the software based on the characterization of a reference (1500-nm thick) CIGS device was carried out. The effects of 1-D and 2-D symmetric gratings on the cell were then investigated, showing significant improvement in anti-reflection effect and in absorptance in the active layer, achieved by excitation of guided modes in the absorber. In addition, device configurations endowed with alternative back reflector and front transparent conductive oxide (TCO) were tested with the goal to quench parasitic absorption losses at front and back side. The use of In$_2$O$_3$:H (IOH) as front and back TCO, combined with an optimized 2-D grating structure, led to a 25% increase of the optical performance with respect to an equally-thick flat device. Most of the performance increase was kept when the absorber thickness was reduced from 1500 nm to 600 nm.
Complete list of metadata

Cited literature [16 references]  Display  Hide  Download
Contributor : Louis Grenet Connect in order to contact the contributor
Submitted on : Tuesday, September 29, 2020 - 2:07:05 PM
Last modification on : Monday, December 13, 2021 - 9:42:32 AM
Long-term archiving on: : Wednesday, December 30, 2020 - 6:44:16 PM


16 Onwudinanti - Advanced ligh...
Files produced by the author(s)




Chidozie Onwudinanti, Robin Vismara, Olindo Isabella, Louis Grenet, Fabrice Emieux, et al.. Advanced light management based on periodic textures for Cu(In,Ga)Se$_2$ thin-film solar cells. Optics Express, Optical Society of America - OSA Publishing, 2016, 24 (6), pp.A693. ⟨10.1364/OE.24.00A693⟩. ⟨cea-02952505⟩



Record views


Files downloads