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Broadband and omnidirectional light harvesting enhancement of fluorescent SiC

Ou Y, Jokubavicius V, Hens P, Kaiser M, Wellmann P, Yakimova R, Syväjärvi M, Ou H (2012)

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Publication Language: English

Publication Status: Published

Publication Type: Journal article

Publication year: 2012

Journal

Publisher: Optical Society of America

Book Volume: 20

Pages Range: 7575-7579

Journal Issue: 7

DOI: 10.1364/OE.20.007575

Abstract

In the present work, antireflective sub-wavelength structures have been fabricated on fluorescent 6H-SiC to enhance the white light extraction efficiency by using the reactive-ion etching method. Broadband and omnidirectional antireflection characteristics show that 6H-SiC with antireflective sub-wavelength structures suppress the average surface reflection significantly from 20.5 % to 1.01 % over a wide spectral range of 390-784 nm. The luminescence intensity of the fluorescent 6H-SiC could be enhanced in the whole emission angle range. It maintains an enhancement larger than 91 % up to the incident angle of 70 degrees, while the largest enhancement of 115.4 % could be obtained at 16 degrees. The antireflective sub-wavelength structures on fluorescent 6H-SiC could also preserve the luminescence spectral profile at a large emission angle by eliminating the Fabry-Perot microcavity interference effect. (C) 2012 Optical Society of America

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How to cite

APA:

Ou, Y., Jokubavicius, V., Hens, P., Kaiser, M., Wellmann, P., Yakimova, R.,... Ou, H. (2012). Broadband and omnidirectional light harvesting enhancement of fluorescent SiC. Optics Express, 20(7), 7575-7579. https://dx.doi.org/10.1364/OE.20.007575

MLA:

Ou, Yiyu, et al. "Broadband and omnidirectional light harvesting enhancement of fluorescent SiC." Optics Express 20.7 (2012): 7575-7579.

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