Located in Slovenia, the University of Ljubljana is the largest and oldest university in the country. Always aiming forward to progress, the university has been both a participant and coordinator of a number of projects within the EC’s Framework Programmes for research, technological development and dissemination.
Considered as a crucial part of the university, the Laboratory of Photovoltaics and Optoelectronics (LPVO), at the Faculty of Electrical Engineering, is the central research group for photovoltaics (PV) and optoelectronics in Slovenia. Many important kinds of research are being done at LPVO, e.g. optical and electrical modelling and simulations of PV devices, light management strategies, including nano- and macro-textures and nanostructures for an optimal confinement of light in solar cell structures, optical characterization of films and devices, light scattering characterization, optical constants determination via R&T, detection and analysis of defects and inhomogeneities on small and large area devices (such as PV modules) using electroluminescence and light beam induced current techniques along with three-dimensional electrical modelling and outdoor PV monitoring.
UL/LPVO main goal for ARCIGS-M is related to optical and electrical modelling and simulation of the solar cell structures within a feedback loop with sample preparation, optical and electrical characterization. They also intend to explore rigorous approaches (FEM, RCWA) in combination with thin-film optics and geometrical optics. This will be applied to analyse and optimise light in-coupling nanostructures, select materials and thicknesses of the layers, determine most promising wavelength-selective intermediate reflectors between the top and the bottom cell and establish efficient light trapping strategies for high optical absorption in the top and the bottom cell. Detailed electrical simulations of the devices will be performed using 1-D and 2-D numerical simulator ASPIN for the selective back contact schemes.
The ARCIGS-M project offers international cooperation of distinguished partners in the field of CIGS PV technology. It is a strategic opportunity to strengthen R&D activities in the technology across Europe and for UL/LPVO it gives a unique opportunity with a direct access to prove the advanced concepts of light management using a closed loop design and optimisation between the experimental and simulation part of R&D.
Dr Marko Topic, Professor at the University of Ljubljana and the Head of Laboratory of Photovoltaics and Optoelectronics and Dr Janez Krč, full Professor at the University of Ljubljana, will work directly on ARCIGS-M project.
Know more about the University of Ljubljana here.