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A conceptual model of light coupling by pillar diffraction gratings

Catchpole, K. R.; Green, M. A.


Diffractivestructures such as pillar gratings are a promising way of coupling light into or out of thin semiconductor devices, for applications in thin film solar cells and light-emitting diodes. In this paper we show that the diffuse transmittance behavior of pillar gratings can be understood using the concept of grating mode interference and that the optimum heights of the grating and an estimate of the optimum period can be predicted with the effective index method. Furthermore, the method...[Show more]

CollectionsANU Research Publications
Date published: 2007-03-20
Type: Journal article
Source: Journal of Applied Physics
DOI: 10.1063/1.2710765


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