{"title":"LED 内部量子效率测量仪","authors":"V. A. Sergeev, O. A. Radaev, I. V. Frolov","doi":"10.1134/S0020441223060076","DOIUrl":null,"url":null,"abstract":"<p>A description and characteristics of the developed internal quantum efficiency (IQE) meter for InGaN LEDs are presented. The meter allows one to determine the IQE of LEDs in the current range up to 25 mA by measuring the watt-ampere characteristic and solving a system of equations relating the values of the radiation power of the LED at two currents with an approximating function obtained on the basis of the ABC model (models of recombination of charge carriers in a light-emitting heterostructure, where A, B, and C are the coefficients of nonradiative, radiative, and Auger recombination, respectively). Unlike the well-known Russian and foreign analogues, the IQE meter is characterized by simplicity of hardware implementation and allows determining the IQE of LEDs at room temperature. The operation of the meter was tested on the example of measuring the IQE of commercial green and blue InGaN LEDs. The meter can be used in scientific laboratories as well as in the input control of enterprises–manufacturers of LED products.</p>","PeriodicalId":587,"journal":{"name":"Instruments and Experimental Techniques","volume":null,"pages":null},"PeriodicalIF":0.4000,"publicationDate":"2023-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"LED Internal Quantum Efficiency Meter\",\"authors\":\"V. A. Sergeev, O. A. Radaev, I. V. Frolov\",\"doi\":\"10.1134/S0020441223060076\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>A description and characteristics of the developed internal quantum efficiency (IQE) meter for InGaN LEDs are presented. The meter allows one to determine the IQE of LEDs in the current range up to 25 mA by measuring the watt-ampere characteristic and solving a system of equations relating the values of the radiation power of the LED at two currents with an approximating function obtained on the basis of the ABC model (models of recombination of charge carriers in a light-emitting heterostructure, where A, B, and C are the coefficients of nonradiative, radiative, and Auger recombination, respectively). Unlike the well-known Russian and foreign analogues, the IQE meter is characterized by simplicity of hardware implementation and allows determining the IQE of LEDs at room temperature. The operation of the meter was tested on the example of measuring the IQE of commercial green and blue InGaN LEDs. The meter can be used in scientific laboratories as well as in the input control of enterprises–manufacturers of LED products.</p>\",\"PeriodicalId\":587,\"journal\":{\"name\":\"Instruments and Experimental Techniques\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.4000,\"publicationDate\":\"2023-12-04\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Instruments and Experimental Techniques\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://link.springer.com/article/10.1134/S0020441223060076\",\"RegionNum\":4,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"ENGINEERING, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Instruments and Experimental Techniques","FirstCategoryId":"5","ListUrlMain":"https://link.springer.com/article/10.1134/S0020441223060076","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"ENGINEERING, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
摘要
本文介绍了所开发的 InGaN LED 内部量子效率 (IQE) 测量仪的描述和特性。通过测量功率-安培特性，并求解 LED 在两个电流下的辐射功率值与根据 ABC 模型（发光异质结构中电荷载流子的重组模型，其中 A、B 和 C 分别为非辐射、辐射和奥格重组系数）获得的近似函数之间的方程组，就能确定 LED 在最大 25 mA 电流范围内的 IQE。与著名的俄罗斯和外国同类产品不同，IQE 计的特点是硬件实施简单，可在室温下确定 LED 的 IQE。以测量商用绿色和蓝色 InGaN LED 的 IQE 为例，测试了测量仪的运行情况。该测量仪既可用于科学实验室，也可用于 LED 产品生产企业的输入控制。
A description and characteristics of the developed internal quantum efficiency (IQE) meter for InGaN LEDs are presented. The meter allows one to determine the IQE of LEDs in the current range up to 25 mA by measuring the watt-ampere characteristic and solving a system of equations relating the values of the radiation power of the LED at two currents with an approximating function obtained on the basis of the ABC model (models of recombination of charge carriers in a light-emitting heterostructure, where A, B, and C are the coefficients of nonradiative, radiative, and Auger recombination, respectively). Unlike the well-known Russian and foreign analogues, the IQE meter is characterized by simplicity of hardware implementation and allows determining the IQE of LEDs at room temperature. The operation of the meter was tested on the example of measuring the IQE of commercial green and blue InGaN LEDs. The meter can be used in scientific laboratories as well as in the input control of enterprises–manufacturers of LED products.
期刊介绍：
Instruments and Experimental Techniques is an international peer reviewed journal that publishes reviews describing advanced methods for physical measurements and techniques and original articles that present techniques for physical measurements, principles of operation, design, methods of application, and analysis of the operation of physical instruments used in all fields of experimental physics and when conducting measurements using physical methods and instruments in astronomy, natural sciences, chemistry, biology, medicine, and ecology.
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