Open AccessSurface ZnSe:Ca layers with hole conductivity
Author(s) -
V. P. Makhniy,
M. M. Berezovskiy,
O. V. Kinzerska,
Volodymyr Melnyk
Publication year - 2019
Publication title -
tehnologiâ i konstruirovanie v èlektronnoj apparature
Language(s) - English
Resource type - Journals
eISSN - 2309-9992
pISSN - 2225-5818
DOI - 10.15222/tkea2019.3-4.31
Subject(s) - luminescence , zinc selenide , materials science , stoichiometry , conductivity , doping , band gap , quenching (fluorescence) , analytical chemistry (journal) , aqueous solution , zinc , electrical resistivity and conductivity , selenide , optoelectronics , optics , chemistry , metallurgy , fluorescence , physics , electrical engineering , selenium , chromatography , engineering
The authors investigate the effect of treating n-ZnSe substrates with boiling aqueous Ca(NO3)2 suspension on their electrical and luminescent properties. Base substrates were cut from bulk pure zinc selenide crystals grown from a stoichiometric melt by the Bridgman method. It was found that the Ca-doping of the substrates causes an almost complete “quenching” of the low-energy orange emission band with a maximum near ħωmax ≈ 1,95 eV and a significant increase in the efficiency of the edge blue luminescence band.