The phosphor temperature measurement of white light-emitting diodes based on magnetic nanoparticle thermometer
The phosphor temperature measurement of white light-emitting diodes based on magnetic nanoparticle thermometer
复制标题
基于磁性纳米粒子温度计的白光发光二极管荧光粉温度测量
DOI：
10.1063/1.4998728
复制
发表时间：
2018-09-01
影响因子：
1.6
通讯作者：
Liu, Wenzhong
中科院分区：
文献类型：
--
作者：
Du, Zhongzhou;Sun, Yi;Liu, Wenzhong
关于在白色发光二极管（LED）中结温或磷光体温度是否更高存在很多争论。主要原因是结温和荧光粉温度无法使用传统的温度测量工具直接测量。在这项研究中，磁性纳米颗粒温度计，一个无损和精确的温度测量工具，介绍和详细描述。描述了模型、测量原理和实验装置。利用磁性纳米颗粒温度计直接测量了白色LED中荧光粉层和P-N结顶面的温度，结果表明，在不同的输入电压下，荧光粉层温度均高于芯片顶面温度，为相关研究人员提供了参考。出版社：AIP Publishing
There is much debate about whether the junction temperature or phosphor temperature is higher in white light-emitting diodes (LEDs). The main reason is that the junction and phosphor temperatures cannot be measured directly using traditional temperature measurement tools. In this study, a magnetic nanoparticle thermometer, a nondestructive and precise temperature measurement tool, is introduced and described in detail. The model, measurement principle, and experimental setup are described. The temperature of the phosphor layer and the top surface of the P-N junction in white LEDs was measured directly using the magnetic nanoparticle thermometer, and the results show that the phosphor layer temperature was higher than the chip top surface temperature at different input voltages, providing a reference for relative researchers. Published by AIP Publishing.