Skip to main navigation Skip to search Skip to main content

Changes of photoluminescence of electron beam irradiated self-assembled InAs/GaAs quantum dots

  • M. Maliya*
  • , Abuduwayiti Aierken
  • , Yudong Li
  • , Dong Zhou
  • , Xiaofan Zhao
  • , Qi Guo
  • , Chaoming Liu
  • *Corresponding author for this work
  • Xinjiang Technical Institute of Physics and Chemistry
  • University of Chinese Academy of Sciences

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

We investigate the effects of 1.0MeV electron beam irradiation on the photoluminescence of self-assembled InAs/GaAs quantum dots. After irradiation doses up to 1×1016e-/cm2, photoluminescence of all samples was degraded dramatically and some additional radiation-induced changes in photo-carrier recombination from QDs, which include a slight increase in PL emission with low electron doses under different photo-injection condition in two samples, are also noticed. Different energy shift was observed in two samples with different Quantum Dot sizes. We attribute this remarkable phenomenon to combination of stress relaxation induced red-shift and In-Ga intermixing caused blue-shift.

Original languageEnglish
Title of host publicationYoung Scientists Forum 2017
EditorsKunchi Peng, Jianwei Pan, Junhao Chu
PublisherSPIE
ISBN (Electronic)9781510619777
DOIs
StatePublished - 2018
EventYoung Scientists Forum 2017 - Shanghai, China
Duration: 24 Nov 201726 Nov 2017

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume10710
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

ConferenceYoung Scientists Forum 2017
Country/TerritoryChina
CityShanghai
Period24/11/1726/11/17

Keywords

  • Displacement damage
  • Electron beam irradiation
  • Photoluminescence
  • Self-assembled InAs/GaAs quantum dots
  • Space radiaotion

Fingerprint

Dive into the research topics of 'Changes of photoluminescence of electron beam irradiated self-assembled InAs/GaAs quantum dots'. Together they form a unique fingerprint.

Cite this