Pyramidal light-trapping structures of a range of length scales — and both periodic and random arrangements — are shown to yield similarly high absorption in thin film crystalline silicon photovoltaics. Through the combination of results from experiment and simulation, the trade-off between absorption effectiveness and ease of fabrication of various pyramidal light-trapping structures is investigated for application in thin-film crystalline silicon solar cells.
Branham, M. S., Hsu, W. C., Yerci, S., Loomis, J., Boriskina, S. V., Hoard, B. R., … Chen, G. (2016). Empirical Comparison of Random and Periodic Surface Light-Trapping Structures for Ultrathin Silicon Photovoltaics. Advanced Optical Materials, 4(6), 858–863. https://doi.org/10.1002/adom.201500667