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Updated: May 24, 2026

Fabrication of Fully Solution Processed Inorganic Nanocrystal Photovoltaic Devices
Published on: July 8, 2016
Effect of aperiodicity on the broadband reflection of silicon nanorod structures for photovoltaics
Chenxi Lin1, Ningfeng Huang, Michelle L Povinelli
1Ming Hsieh Department of Electrical Engineering and Center for Energy Nanoscience, University of Southern California, Los Angeles, CA, USA. chenxil@usc.edu
Abstract:
We carry out a systematic numerical study of the effects of aperiodicity on silicon nanorod anti-reflection structures. We use the scattering matrix method to calculate the average reflection loss over the solar spectrum for periodic and aperiodic arrangements of nanorods. We find that aperiodicity can either improve or deteriorate the anti-reflection performance, depending on the nanorod diameter. We use a guided random-walk algorithm to design optimal aperiodic structures that exhibit lower reflection loss than both optimal periodic and random aperiodic structures.

