Light trapping in thin crystalline silicon solar cells

4 December 2002

conference paper
Published by Institute of Electrical and Electronics Engineers (IEEE)

p. 263-268 vol.1
https://doi.org/10.1109/pvsc.1990.111628

Abstract

Optimally designed thin crystalline silicon solar cells (<50- mu m thick) have performance and cost advantages over conventional thick devices. The modeling and fabrication of light-trapping devices are described. Thin (30- mu m-thick) Si-film layers are formed on textured silicon substrates. The back surface of the thin Si film layers are passivated with SiO/sub 2/ coatings. Long-wavelength light is confined through total internal reflections. The analysis of fabricated devices reveals the presence of the enhanced absorption predicted by the light-trapping model. Efficiencies for these structures reach 9.4%, among the highest reported for crystalline silicon devices of this thickness.

Keywords

This publication has 2 references indexed in Scilit:

Numerical modeling of textured silicon solar cells using PC-1D
IEEE Transactions on Electron Devices, 1990
Silicon as a mechanical material
Proceedings of the IEEE, 1982