Solar energy paper index
Optimization of broadband omnidirectional reflector based on aperiodic order for thermophotovoltaic device by means of genetic algorithm
One-line summary
A solar energy research paper on Optimization of broadband omnidirectional reflector based on aperiodic order for thermophotovoltaic device by means of genetic algorithm.
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Chinese explanation / 中文解读
中文解读待补充：本站会优先为光伏效率、钙钛矿太阳能电池、储能技术、太阳能热利用、BIPV、并网技术等高价值论文补充中文说明。
Original abstract
Abstract An optimization strategy based on a genetic algorithm (GA) is proposed to design a broad omnidirectional reflector of a thermophotovoltaic system. It is composed by chirped multilayers forming a discrete set of sub-mirrors, each of them has a high reflectivity in a limited range around a central wavelength that, in turn, has been given by a Padé-based centralwavelength distribution. Two sub-mirror architectures, Thue-Morse (ThMo) and Fibonacci (FB), has been investigated. In the first stage, a GA, based on a set of integer parameters, optimizes the central-wavelength distribution, the number of sub-mirrors, and the size of single sub-mirror. In the second stage, GA explores the parameter space of layer thicknesses to further enhance the figure of merit (FoM) that is defined as the percentage of total irradiance power reflected. Electromagnetic simulations are carried out using the scattering-matrix method. The best result corresponds to a 30-layer FB broadband omnidirectional reflector, yielding a FoM of 99.58%, over the 1240-7000 nm for all incidence angles and both polarizations.
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