Open AccessИсследование спектров фотолюминесценции нанокристаллов AgInS-=SUB=-2-=/SUB=-/ZnS при воздействии γ-излучения
Author(s) -
Dmitry S. Mazing,
Н. М. Романов,
В. А. Мошников,
О.В. Александрова,
O. A. Korepanov
Publication year - 2019
Publication title -
pisʹma v žurnal tehničeskoj fiziki
Language(s) - English
Resource type - Journals
eISSN - 1726-7471
pISSN - 0320-0116
DOI - 10.21883/pjtf.2019.21.48471.17948
Subject(s) - photoluminescence , nanocrystal , materials science , band gap , nanoparticle , radiation , radiation dose , gamma ray , quantum dot , optoelectronics , nanotechnology , colloid , chemistry , optics , nuclear medicine , physics , medicine , astrophysics
The effect of different doses of γ-radiation from a 137Cs source on photoluminescence of Ag-In-S nanocrystals covered with a shell of wider bandgap ZnS was investigated. The dynamics of changes in the nanocrystals photoluminescence depending on the dose of γ-radiation was shown. It was established that the AgInS2 / ZnS nanoparticles retain their photoluminescent properties and colloidal stability upon reaching the absorbed dose of 6 • 10^3 Gy (to water). Residual photoluminescence persisted when the absorbed dose reached 10^6 Gy. It was shown that AgInS2 / ZnS nanocrystals can be used in medical and biological studies in which increased resistance to gamma radiation is needed.