@inproceedings{857a112ff51a4003af498080fab84f91,
title = "Two-layer anti-reflection coatings with optimized sub-bandgap reflection for solar modules",
abstract = "The efficiency of a crystalline silicon solar module decreases as its operating temperature rises. Module cooling is possible via selective reflection of sub-bandgap photons so that they are not parasitically absorbed. Selecting from a library of common dielectrics, we numerically optimize the design of two-layer mirrors at the outer glass surface of a crystalline Si solar cell module. The mirrors are designed to maximize the annual energy yield of a module by both reflecting light below the bandgap and enhancing the transmission of light above the bandgap. Combined ray-tracing and finite element simulations determine the power output and temperature of the module over time. Since any two-layer mirror would replace a conventional single-layer glass anti-reflection coating on the module glass, we study the ability of a two-layer structure to improve on a single-layer coating. The best two-layer designs improve the annual energy yield over a module with a glass anti-reflection coating and reduce the module operating temperature.",
keywords = "Anti-reflection, Cooling, Photonic structures, Selective reflection, Solar cells, Solar modules, Solar thermal management",
author = "Slauch, {Ian M.} and Deceglie, {Michael G.} and Silverman, {Timothy J.} and Ferry, {Vivian E.}",
year = "2018",
month = jan,
day = "1",
doi = "10.1117/12.2323145",
language = "English (US)",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
publisher = "SPIE",
editor = "Munday, {Jeremy N.} and Kempe, {Michael D.} and Peter Bermel",
booktitle = "New Concepts in Solar and Thermal Radiation Conversion and Reliability",
address = "United States",
note = "New Concepts in Solar and Thermal Radiation Conversion and Reliability 2018 ; Conference date: 19-08-2018 Through 21-08-2018",
}