Hardware-Software Complex for the Investigation of the Dynamic Characteristics of Separate Spectral Components of the Emission Spectrum of Leds
- Авторы: Radaev О.1,2, Sergeev V.1,2, Frolov I.1
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Учреждения:
- Ulyanovsk Branch, Kotelnikov Institute of Radio Engineering and Electronics, Russian Academy of Sciences
- Ulyanovsk State Technical University
- Выпуск: Том 62, № 8 (2019)
- Страницы: 708-713
- Раздел: Article
- URL: https://journals.rcsi.science/0543-1972/article/view/246767
- DOI: https://doi.org/10.1007/s11018-019-01683-1
- ID: 246767
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Аннотация
We present the description of an automated hardware-software complex intended for measuring the 3 dB frequency of modulation and evaluation of the quantum efficiency of separate spectral components of the full spectrum of electroluminescence of light-emitting diodes, including the range of low levels of excitation. The principle of operation of this complex is based on measuring the spectrum of radiation of a light-emitting diode with the help of an OceanOptics USB2000+ spectrometer in the signal-accumulation mode in the course of transmission of current pulses with given amplitude and repetition frequency through the light-emitting diode with subsequent selection of separate spectral components from the full spectrum of radiation. We present the results of testing the hardware-software complex performed by measuring, as an example, the frequency characteristics of separate spectral components of the full electroluminescence spectrum of commercial InGaN green light-emitting diodes. The analyzed hardware-software complex can be used for the diagnostics of the quality of light-emitting heterostructures with quantum wells.
Об авторах
О. Radaev
Ulyanovsk Branch, Kotelnikov Institute of Radio Engineering and Electronics, Russian Academy of Sciences; Ulyanovsk State Technical University
Автор, ответственный за переписку.
Email: oleg.radaev.91@mail.ru
Россия, Ulyanovsk; Ulyanovsk
V. Sergeev
Ulyanovsk Branch, Kotelnikov Institute of Radio Engineering and Electronics, Russian Academy of Sciences; Ulyanovsk State Technical University
Автор, ответственный за переписку.
Email: sva@ulstu.ru
Россия, Ulyanovsk; Ulyanovsk
I. Frolov
Ulyanovsk Branch, Kotelnikov Institute of Radio Engineering and Electronics, Russian Academy of Sciences
Email: sva@ulstu.ru
Россия, Ulyanovsk