Light management is important for improving the performance of thin-film solar cells. Advanced concepts of efficient light scattering and trapping inside the cell structures need to be investigated. An important tool for design and optimisation of the concepts present optical modelling and simulation. In the article a model of light scattering at textured surfaces, which is based on first order Born approximation and the Fraunhofer diffraction, is presented. Another approach presents rigorous solving of Maxwell's equations for electromagnetic waves in two- or three-dimensions. An example of a three-dimensional simulation, employing the finite element method, of an amorphous silicon solar cell with periodically textured interfaces is shown. The second part of the article focuses on experimental results related to three advanced light management approaches: i) modulated surface morphologies for enhanced scattering and anti-reflection, ii) metal nano-particles introducing plasmonic scattering, and iii) one-dimensional photonic crystals (Bragg stacks) for back reflectors. Improvements in output performance of amorphous silicon solar cells are demonstrated and discussed.
B.04 Guest lecture
COBISS.SI-ID: 9351508As every second year we organized the 4th Slovenian Photovoltaic Conference that was held at University of Ljubljana Faulty of Electrical Engineering on 20-21 Jun 2012. Conference Chairman (and Programme Committee Chairman): Marko Topič Organising Committee Chairman: Boštjan Glažar
B.01 Organiser of a scientific meeting
At the 27th European Photovoltaic Solar Energy Conference (EU-PVSEC-27, 24.-28. 9. 2012) with over 4000 participants, 300 oral and 1100 visual presentations in 6 sections, our contribution 3DV.1.62 Benjamin Lipovšek, Janez Krč, Marko Topič DESIGN AND OPTIMISATION OF THIN-FILM SILICON PV MODULES WITH SURFACE-TEXTURED FRONT GLASS BY USING A COMBINED GEOMETRIC OPTICS / WAVE OPTICS MODEL received an award for the best visual presentation in section "Thin Film Solar Cells".
E.02 International awards