| LED梯度折射率封装结构的蒙特卡罗模拟 |
| |
| 引用本文： | 余仁勇,金尚忠,梁培,岑松原,王乐.LED梯度折射率封装结构的蒙特卡罗模拟[J].光子学报,2014,39(12):2200-2203. |
| |
| 作者姓名： | 余仁勇 金尚忠 梁培 岑松原 王乐 |
| |
| 作者单位： | （中国计量学院 光学与电子科技学院,杭州 310018） |
| |
| 基金项目： | 国家高技术研究发展计划重点项目（2006AA03A130）和浙江省科技计划项目（2009C33104）资助 |
| |
| 摘 要： | 针对封装胶中掺杂纳米颗粒以及采用梯度折射率的LED封装模式,用蒙特卡罗方法模拟光在胶体中的传播,分析散射系数对透光率的影响.结果表明,透光率随散射系数增大而减小.对于固定的封装层数,各层均采取最佳折射率值时,透光率可以达到最大.梯度折射率值逐渐减小的多层纳米掺杂封装结构,透光率高于传统的封装模式,能够提高LED的出光效率.
|
| 关 键 词： | 发光二极管(LED) 梯度折射率 蒙特卡罗模拟 纳米颗粒 封装胶 |
| 收稿时间： | 2010-04-12 |
Monte Carlo Simulation on LEDs Graded-Refractive-Index-Encapsulation |
| |
| YU Ren-yong,JIN Shang-zhong,LIANG Pei,CEN Song-yuan,WANG Le.Monte Carlo Simulation on LEDs Graded-Refractive-Index-Encapsulation[J].Acta Photonica Sinica,2014,39(12):2200-2203. |
| |
| Authors: | YU Ren-yong JIN Shang-zhong LIANG Pei CEN Song-yuan WANG Le |
| |
| Institution: | (Institute of Optical and Electronic Technology,China Jiliang University,Hangzhou 310018,China) |
| |
| Abstract: | 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 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,transmittance will be higher than in traditional non-graded encapsulants,and will improve light extraction efficiency of LED. |
| |
| Keywords: | Light-Emitting Diode (LED) Graded refractive index Monte Carlo simulation Nanoparticle Encapsulant |
|
| 点击此处可从《光子学报》浏览原始摘要信息 |
| 点击此处可从《光子学报》下载免费的PDF全文 |
|
