半导体器件第5-12部分:光电子器件发光二极管LED效率的试验方法

[中文适用范围]： 本技术报告讨论不含荧光粉的单颗发光二极管 (LED) 芯片或封装的光电效率的术语和测量方法。白光照明用 LED 不在本部分范围内。本技术报告提供以下方面的指导：不含荧光粉的单颗 LED 芯片或封装的光电效率（如功率效率 PE、外部量子效率 EQE、电压效率 VE、光提取效率 LEE、内部量子效率 IQE、注入效率 IE 和辐射效率 RE）的术语；PE、EQE、VE、LEE 和 IQE 的测试方法；关于 IQE 测量方法的现有报告的回顾，侧重于准确性和实际适用性；基于变温电致发光 (TDEL) 的 LED IQE 测量方法；基于室温参考点法 (RTRM) 的 LED IQE 测量方法；LED 辐射电流和非辐射电流的测量方法；IQE 与 VE 之间的关系，由此引入了 LED 效率的新概念——有源效率 (AE)，定义为 AE = VE × IQE。 [外文原描述]： IEC TR 60747-5-12:2021(E) discusses the terminology and the measuring methods of optoelectronic efficiencies of single light emitting diode (LED) chip or package without phosphor. White LEDs for lighting applications are out of the scope of this part. This technical report provides guidance on - terminology of optoelectronic efficiencies of single LED chip or package without phosphor, such as the power efficiency (PE), the external quantum efficiency (EQE), the voltage efficiency (VE), the light extraction efficiency (LEE), the internal quantum efficiency (IQE), the injection efficiency (IE), and the radiative efficiency (RE); - test methods of optoelectronic efficiencies of the PE, the EQE, the VE, the LEE, and the IQE; - review of various IQE measurement methods reported so far in view of accuracy and practical applicability; - the measuring method of the LED IQE based on the temperature-dependent electroluminescence (TDEL); - the measuring method of the LED IQE based on the room-temperature reference-point method (RTRM); - the measuring method of the radiative and nonradiative currents of an LED; - the relationship between the IQE and the VE, which leads to introduction of a new LED efficiency, the active efficiency (AE) as AE = VE × IQE.