Estimation Carrier Concentration of Light-Emitting Diode via Electrical–Thermal Characteristics
Estimation Carrier Concentration of Light-Emitting Diode via Electrical–Thermal Characteristics
复制标题
DOI：
10.1109/ted.2015.2436823
复制
发表时间：
2015-06
影响因子：
3.1
通讯作者：
Huanting Chen;Xiaofang Zhou;Jiahao Cai;Shuo Lin
中科院分区：
文献类型：
--
作者：
Huanting Chen;Xiaofang Zhou;Jiahao Cai;Shuo Lin
本文介绍了利用电容估算发光二极管（LED）载流子浓度的方法。该模型将载流子浓度与正向电流、LED器件的热阻、LED器件、器件封装以及器件的其他物理参数（如带隙能量、串联电阻和理想因子）、电流系数以及温度对表观电容的影响联系起来。它可以为分析LED器件提供一个框架。估算方法包括简单的电气测量程序，易于LED器件制造商和系统设计人员遵循。所提出的模型已与LED器件进行了测试，理论和实际结果之间有相当好的一致性。
With the use of the capacitance, estimation techniques for the carrier concentration of the light-emitting diodes (LEDs) are introduced in this paper. The proposed model relates the carrier concentration to the forward current, the thermal resistance of the heatsink, the LED device, the device package, and the other physical parameters of the device (such as the bandgap energy, series resistance, and ideality factor), coefficients for the current, and temperature effect on the apparent capacitance altogether. It could provide a framework for analyzing LED devices. The estimation methods consist of simple procedures for electrical measurements, which are easy for LED device manufacturers and system designers to follow. The proposed model has been tested with LED devices, with reasonably good agreement between theoretical and practical results.