首页|Monte Carlo Simulation on LED Graded-refractive-index Multilayer Encapsulation Structure
Monte Carlo Simulation on LED Graded-refractive-index Multilayer Encapsulation Structure
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Light propagation in nanoparticle-loaded encapsulants is simulated based on the method of Monte Carlo, referring to the muhilayer 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-emitting diode(LED)graded refractive indexMonte Carlo simulation
YU Renyong、JIN Shangzhong、LIANG Pei、CEN Songyuan
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Institute of Optical and Electronic Technology, China Jiliang University, Hangzhou 310018, CHN
National High-tech R&D Program of China "863" Program
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