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Optical Properties of Y2O3:Eu3+ Thin-Film Phosphors Coated with 2D SiNx/Air Photonic Crystal Layers
We determined the effects of varying the array lattice parameters of the nanorods of a two-dimensional (2D) SiNx photonic crystal (PC) layer on the efficiency of extraction of photoluminescence (PL) of the Y2O3:Eu3+ thin films, in which the interface between the phosphor layer and the air was modifi...
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Published in: | Electrochemical and solid-state letters 2007-01, Vol.10 (3), p.H82-H84 |
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Main Authors: | , , , , , |
Format: | Article |
Language: | English |
Online Access: | Get full text |
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Summary: | We determined the effects of varying the array lattice parameters of the nanorods of a two-dimensional (2D) SiNx photonic crystal (PC) layer on the efficiency of extraction of photoluminescence (PL) of the Y2O3:Eu3+ thin films, in which the interface between the phosphor layer and the air was modified with a 2D SiNx PC pattern. The PL extraction was improved by a factor of over 3.7 compared to that of a conventional Y2O3:Eu3+ thin film by adding a PC array with a lattice constant of 600nm, a height of 200nm, and a filling ratio of 0.27. This improvement arises from the liberation of the photons trapped in the high-index guiding layers of the Y2O3:Eu3+ thin films. |
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ISSN: | 1099-0062 |
DOI: | 10.1149/1.2424270 |