Abschlussarbeiten - Master
Photonic nanostructures for advanced light trapping in thin crystalline-silicon solar cells
Art der Abschlussarbeit
Master
Autoren
- Liu, Xingyu
Betreuer
- Prof. Dr. rer. nat. Johann Wolfgang Bartha
- Dr.-Ing Matthias Albert
Weitere Betreuer
Dr. Valerie Depauw (IMEC)
Abstract
Crystalline solar cells have always dominated the photovoltaic (PV) industry and the technology still has today a dominant market share of 90%. Since the cost of silicon material is about 50% of the total cost during module fabrication, thinner silicon solar cells have become a major trend for cost reduction. But with such thin silicon solar wafers, they suffer from a lower energy conversion efficiency due to incomplete light absorption, especially in the longer wavelength range (900-1170 nm).
Light-management schemes based on photonic nanostructures are particularly promising to improve the light absorption. In contrast to the standard micron-scale random pyramids, their fabrication minimizes the loss of material, and their light-wavelength-scale introduces richer interactions with light. In this thesis nanostructures will be introduced on the front surface of solar cells in order to enhance their light absorption, with particular attention to the longer wavelengths.
This thesis focuses on the fabrication of photonic nanostructures as well as their optical, morphological and electrical characterization, and their integration of into 40-
Light-management schemes based on photonic nanostructures are particularly promising to improve the light absorption. In contrast to the standard micron-scale random pyramids, their fabrication minimizes the loss of material, and their light-wavelength-scale introduces richer interactions with light. In this thesis nanostructures will be introduced on the front surface of solar cells in order to enhance their light absorption, with particular attention to the longer wavelengths.
This thesis focuses on the fabrication of photonic nanostructures as well as their optical, morphological and electrical characterization, and their integration of into 40-
Schlagwörter
-
Berichtsjahr
2016