Analysis of radiation resistance control and evaluation methods in terms of model (Zn-O)-GaP LEDs Introduction and problem statement

Authors

  • O. R. Abdullaiev Optron, Moscow
  • I. V. Ryzhikov Moscow State University of Instrument Engineering and Computer Science, Moskow
  • N. M. Rudenko National Technical University of Ukraine, Kyiv Politechnic Institute, Kiev
  • Yu. F. Adamenko National Technical University of Ukraine, Kyiv Politechnic Institute, Kiev http://orcid.org/0000-0003-0452-6301

DOI:

https://doi.org/10.20535/RADAP.2014.56.112-120

Keywords:

(Zn-O)-GaP LED, damage constant, neutron irradiation, light intensity

Abstract

Introduction and problem statement. Research relevance of most important parameters of LEDs — resistance to ionizing radiation — for their use in civilian hardware, aerospace, nuclear and radioelectronics onboard equipment is shown. Samples and experimental technique. Samples obtaining method for studying of neutron irradiation influence on the LEDs is indicated. The neutron irradiation influence on the basic characteristics (light intensity) given current and voltage is investigated. Experimental results interpretation shows that for this model current radiative component associated with electrons injection in the optically active p-region. Radiative excitons recombination occurs at the (Zn-O)-complexes, the concentration of which is a linear function. An experimental study light intensity dependences of fluens and damage constant finding. Theoretically and experimentally investigated the light intensity dependence of neutron irradiation fluens at given current. The (IV0/IV) dependencies from fluens neutrons with energy >= 0,1 MeV and fixed voltage of 1,65 V is presented. It shown that light intensity reduction while irradiation at the fixed current is much faster than at the fixed voltage. The calculation formula and (IV0/IV) dependence from neutrons fluens for set of 25 LEDs at nominal current 10 mA are received. Conclusions. The neutron irradiation influence with energy above 0,1 and 2,65 MeV on the light intensity red glow (Zn-O)-LEDs is indicated. It shown that damage constant is proportional to the neutrons momentum. The calculated light intensity dependence from fluens at given current is received.

Author Biographies

O. R. Abdullaiev, Optron, Moscow

Cand. of Sci. (Techn)

I. V. Ryzhikov, Moscow State University of Instrument Engineering and Computer Science, Moskow

Doc. of Sci. (Techn), Prof.

N. M. Rudenko, National Technical University of Ukraine, Kyiv Politechnic Institute, Kiev

Cand. of Sci. (Techn), Assoc. Prof.

Yu. F. Adamenko, National Technical University of Ukraine, Kyiv Politechnic Institute, Kiev

Assistant of Prof.

References

Перелік посилань

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References

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Published

2014-04-10

How to Cite

Абдуллаєв, О., Рижиков, І., Руденко, Н. and Адаменко, Ю. (2014) “Analysis of radiation resistance control and evaluation methods in terms of model (Zn-O)-GaP LEDs Introduction and problem statement”, Visnyk NTUU KPI Seriia - Radiotekhnika Radioaparatobuduvannia, 0(56), pp. 112-120. doi: 10.20535/RADAP.2014.56.112-120.

Issue

No. 56 (2014)

Section

Theory and Practice of Radio Measurements

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