An Efficient Ray Tracing Algorithm for the Simulation of Light Trapping Effects in Si Solar Cells with Textured Surfaces

Title
An Efficient Ray Tracing Algorithm for the Simulation of Light Trapping Effects in Si Solar Cells with Textured Surfaces
Authors
변석용변석주이장교김재완이택성신동우조규만탁성주김동환김원목
Keywords
Ray Tracing; Light Confinement; Texturing; Si Solar Cells
Issue Date
2012-04
Publisher
Journal of nanoscience and nanotechnology
Citation
VOL 12, NO 4, 3224-3227
Abstract
Optimizing the design of the surface texture is an essential aspect of Si solar cell technology as it can maximize the light trapping efficiency of the cells. The proper simulation tools can provide efficient means of designing and analyzing the effects of the texture patterns on light confinement in an active medium. In this work, a newly devised algorithm termed Slab-Outline, based on a ray tracing technique, is reported. The details of the intersection searching logic adopted in Slab- Outline algorithm are also discussed. The efficiency of the logic was tested by comparing the computing time between the current algorithm and the Constructive Solid Geometry algorithm, and its superiority in computing speed was proved. The validity of the new algorithm was verified by comparing the simulated reflectance spectra with the measured spectra from a textured Si surface.
URI
http://pubs.kist.re.kr/handle/201004/42707
ISSN
15334880
Appears in Collections:
KIST Publication > Article
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