Influence of synthesis conditions on scintillation characteristics of ZnO tetrapods
Krasnova V.V.1, Muslimov A.E.1, Venevtsev I.S.2, Faradzheva M.P. 2, Lavrikov A.S.1, Zadorozhnaya L.A.1, Kanevsky V.M.1
1Shubnikov Kurchatov Institute of Crystallography of the Kurchatov Institute of Crystallography and Photonics, Moscow, Russian Federation
2Peter the Great Saint-Petersburg Polytechnic University, St. Petersburg, Russia
Email: valeriya070707@inbox.ru, amuslimov@mail.ru, venevtsev.ivan@gmail.com, vpzadorozhny@mail.ru, kanevsky@crys.ru
The results of a comparative analysis of the morphology, structural and phase composition, and scintillation characteristics of ZnO tetrapods obtained by the carbothermal and gas-phase synthesis are presented. In the gas-phase synthesis, petal-type structures are formed along with classical tetrapods, crystalline quality increases, and scintillation characteristics of ZnO structures get improved. Due to the illumination time shortness, instantaneous intensity of the fast ultraviolet component with decay time of ~ 0.7-1.0 ns is two orders of magnitude higher than that of the slow component. Keywords: zinc oxide, microscopy, luminescence, scintillators, tetrapods, petals.
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