The morphology of high-current electron-beam-initiated fractures in InGaN/GaN heterostructures

Bibliographic Details
Parent link:Technical Physics Letters: Scientific Journal
Vol. 41, iss. 8.— 2015.— [P. 750-752]
Main Author: Oleshko V. I. Vladimir Ivanovich
Corporate Author: Национальный исследовательский Томский политехнический университет (ТПУ) Институт физики высоких технологий (ИФВТ) Кафедра лазерной и световой техники (ЛиСТ)
Other Authors: Gorina S. G. Svetlana Gennadievna
Summary:Title screen
The morphology of fractures in InGaN/GaN heterostructures on sapphire substrates under mul tipulse irradiation by a highcurrent electron beam is experimentally investigated. It is established that exci tation of samples by an electron beam with the threshold density from the heterostructure side leads to the formation of microfractures the number, size, and shape of which change during irradiation and are deter mined by individual properties of investigated samples. In heterostructures with stimulated luminescence, at the instant of the excitation pulse, bright microregions were detected against a background of homogeneous cathodoluminescence. The spatial positions of these microregions coincide with those of residual microfrac tures. Possible mechanisms of the electronbeaminitiated fracture of lightemitting heterostructures are analyzed.
Режим доступа: по договору с организацией-держателем ресурса
Published: 2015
Subjects:
Online Access:http://dx.doi.org/10.1134/S1063785015080143
Format: Electronic Book Chapter
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=643809