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Monte Carlo Simulation on LED Graded-refractive-index Multilayer Encapsulation Structure 被引量:1

Monte Carlo Simulation on LED Graded-refractive-index Multilayer Encapsulation Structure
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摘要 Light propagation in nanoparticle-loaded encapsulants is simulated based on the method of Monte Carlo,referring to the multilayer graded-refractive-index structure for LED encapsulants.And the influence of scattering coefficient on the transmittance is analyzed.The results show that the transmittance decreases with scattering coefficient.For a given number of layers,the encapsulants will yield maximum transmittance if the refractive index value of each layer is optimized.The nanoparticle-loaded encapsulant consists of multiple layers with refractive-index values that gradually decrease.The transmittance will be higher than that of traditional non-graded encapsulants,and will improve light extraction efficiency of LED. Light propagation in nanoparticle-loaded encapsulants is simulated based on the method of Monte Carlo, referring to the multilayer graded-refractive-index structure for LED encapsulants. And the influence of scattering coefficient on the transmittance is analyzed. The results show that the transmittance decreases with scattering coefficient. For a given number of layers, the encapsulants will yield maximum transmittance if the refractive index value of each layer is optimized. The nanoparticle-loaded encapsulant consists of multiple layers with refractive-index values that gradually decrease. The transmittance will be higher than that of traditional non-graded encapsulants, and will improve light extraction efficiency of LED.
出处 《Semiconductor Photonics and Technology》 CAS 2010年第2期73-77,共5页 半导体光子学与技术(英文版)
基金 National High-tech R&D Programof China "863" Program(2006AA03A130)
关键词 light-emitting diode(LED) graded refractive index Monte Carlo simulation light-emitting diode(LED) graded refractive index Monte Carlo simulation
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参考文献12

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