title: Design of wavelength selective concentrator for micro PV/TPV systems using evolutionary algorithm.
abstract: This paper describes the results of exploring photonic structures that behave as wavelength selective concentrators (WSCs) of solar/thermal radiation. An evolutionary algorithm was combined with the finite-difference time-domain method (EA-FDTD) to determine the optimum photonic structure that can concentrate a designated wavelength range of beam solar radiation and diffusive thermal radiation in such a manner that the range matches the photosensitivity of micro photovoltaic and thermophotovoltaic cells. Our EA-FDTD method successfully generated a photonic structure capable of performing wavelength selective concentration close to the theoretical limit. Our WSC design concept can be successfully extended to three-dimensional structures to further enhance efficiency.
authors: Department of Mechanical Engineering, Nagaoka University of Technology, Nagaoka, Japan. noboru@nagaokaut.ac.jp
authors: Noboru
authors: N
authors: Yamada
authors: Toshikazu
authors: T
authors: Ijiro
mesh_terms: D000465:Algorithms; D017076:Computer-Aided Design; D004867:Equipment Design; D019544:Equipment Failure Analysis; D007909:Lenses; D008904:Miniaturization; D012993:Solar Energy