Open AccessLuminescence of ZnO nanocrystals in silica synthesized by dual (Zn, O) implantation and thermal annealing
Author(s) -
И. Н. Пархоменко,
Л. А. Власукова,
Ф. Ф. Комаров,
M. Makhavikou,
O. Milchanin,
E. Wendler,
Maximilian Zapf,
Carsten Ronning
Publication year - 2021
Publication title -
journal of physics. d, applied physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.857
H-Index - 198
eISSN - 1361-6463
pISSN - 0022-3727
DOI - 10.1088/1361-6463/abf0ec
Subject(s) - photoluminescence , annealing (glass) , materials science , nanocrystal , zinc , luminescence , fluence , amorphous solid , nanoparticle , chemical engineering , ion implantation , spectroscopy , photochemistry , ion , inorganic chemistry , nanotechnology , metallurgy , crystallography , chemistry , optoelectronics , physics , organic chemistry , quantum mechanics , engineering
Zinc blende ZnO nanocrystals (NCs) were synthesised in amorphous silica by high-fluence dual (Zn, O) ion implantation and subsequent thermal annealing in air. We observed the formation of core/shell nanoparticles at the depth of maximum Zn concentration as a result of an incomplete oxidation process. The silica matrix with ZnO NCs exhibits an intense white-greenish emission. Low-temperature photoluminescence spectroscopy revealed various radiative recombination mechanisms in the zinc blende ZnO NCs involving intrinsic defects that act as donors and acceptors.