Thermal quenching of self-trapped exciton luminescence in nanostructured hafnia

Актуальные Проблемы Физики Полупроводников: Наноструктуры, Эпитаксия, Фотоника И Электроника. Научные Результаты ИФП СО РАН За 2022 Год

“…Результаты экспериментов на вычислительном кластере с SMP-архитектурой вычислительных узлов, включающих два 8 ядерных процессоров Intel Xeon E5420 сетевыми адаптерами стандарта Gigabit Ethernet представлены на Рис. 145.…”

“…Рис 145 . Время выполнения операции All-to-all вычислительном кластере с SMP-узлами в зависимости от расположения процессов по вычислительным ядрам: (а) требуемая подсистема из 24 процессорных ядер; (б) требуемая подсистема из 72 процессорных ядер.…”

First investigation of the morphological and luminescence properties of HfO2 nanoparticles synthesized by photochemical synthesis

“…In particular, the luminescence of nanocrystalline hafnia is commonly attributed to oxygen vacancy related defects, colour centres, 5,48–50 as well as to radiative decays of excitons. 51–53…”

“…In particular, the luminescence of nanocrystalline hafnia is commonly attributed to oxygen vacancy related defects, colour centres, 5,[48][49][50] as well as to radiative decays of excitons. [51][52][53] For the first time, this investigation reveals that the photochemical synthesis is suitable for a straightforward manufacture of monoclinic hafnia NPs with reduced costs and times. Interestingly, the visible emission band of hafnia NPs lies in the wavelength range matching the absorption spectrum of many common fast organic dyes, a condition that is required for the creation of composite scintillators.…”

Luminescence in Anion-Deficient Hafnia Nanotubes

“…It is known that hafnia includes oxygen vacancies of various configurations and charge states as active electron-optical centers [6]. It is these vacancies that localize charges; thus, HfO 2 is able to exhibit its own luminescence [7,8] and typical memristive behavior [2,3,9,10]. In addition, due to the high atomic mass of its cation, hafnia is an excellent solid-state matrix for doping with rare earth ions.…”