Influence of preliminary irradiation by gamma-quanta on development of catastrophic failures during operation of IR-LEDs

Influence of preliminary irradiation by gamma-quanta on development of catastrophic failures during operation of IR-LEDs

Bibliographic Details
Parent link:Journal of Physics: Conference Series
Vol. 830 : Energy Fluxes and Radiation Effects 2016.— 2017.— [012132, 8 p.]
Main Author: Gradoboev A. V. Aleksandr Vasilyevich
Corporate Author: Национальный исследовательский Томский политехнический университет (ТПУ) Юргинский технологический институт (филиал) (ЮТИ) Кафедра сварочного производства (КСП)
Other Authors: Simonova A. V.
Summary:Title screen
We have considered the influence of preliminary irradiation by {60}Co gamma quanta on development of catastrophic failure during long-term operation of IR-LEDs based upon dual AlGaAs heterostructures. Irradiation was realized in passive power mode of the LEDs prior to aging. Two specific doses of irradiation were used. The first irradiation dose corresponded to the first stage of emission power drop of the LEDs irradiated by gamma-quanta, which is attributed to the radiation-stimulated reconstruction of the initial defect structure of the LED crystal. The second dose corresponded to the second stage of emission power drop, which is attributed solely to the introduction of radiation defects. Aging under long operating time conditions was simulated by a step-stress approach. We have established that the preliminary irradiation by gamma-quanta can be used in manufacturing technology of LEDs to improve their operating parameters on condition that irradiation doses are chosen in strictly provide area of the radiation-stimulated reconstruction of the initial defect structure.
Language:English
Published: 2017
Series:Radiation physics and chemistry of condensed matter
Subjects:
электронный ресурс
труды учёных ТПУ
облучение
гамма-кванты
отказы
светодиоды
инфракрасные светоизлучающие диоды
радиационные дефекты
Online Access:http://dx.doi.org/10.1088/1742-6596/830/1/012132
http://earchive.tpu.ru/handle/11683/39505
Format: Electronic Book Chapter
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=654949

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