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http://dx.doi.org/10.3807/KJOP.2010.21.1.001

Enhanced Absorption Efficiency of Solar Cells Using Guided-mode Resonance  

Kim, Doo-Sung (Department of Electronic Engineering, Ajou University)
Kim, Sang-In (Department of Electronic Engineering, Ajou University)
Lee, Jae-Jin (Department of Electronic Engineering, Ajou University)
Lim, Han-Jo (Department of Electronic Engineering, Ajou University)
Publication Information
Korean Journal of Optics and Photonics / v.21, no.1, 2010 , pp. 1-5 More about this Journal
Abstract
In this study, we propose a grating structure using guided-mode resonance (GMR) to increase the absorption efficiency of a silicon solar cell. The proposed solar cell design consists of a one-dimensional diffraction grating and a planar waveguide layer of poly-silicon deposited on a silver reflector. We investigate the influence of structure parameters such as grating period, waveguide thickness, grating width and grating depth. Optimal parameters are found using the particle swarm optimization (PSO) algorithm. In the optimized GMR-assisted solar cell, absorption efficiency up to 65.8% is achieved in the wavelength range of 300 nm~750 nm.
Keywords
Guided mode; Solar cell; Absorption efficiency; Periodic structure;
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