Zobrazeno 1 - 10
of 21
pro vyhledávání: '"D.M. Spiridonov"'
Publikováno v:
Optics and Spectroscopy. 128:1430-1434
The mechanisms of photo- and thermoluminescence processes in cation-deficient submicron AlN crystals after UV excitation are studied. The observed emission spectra represent a superposition of bands peaking at 3.0 and 2.5 eV. These spectral features
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2d33fd83de18b89b20f87f5d781eb297
https://doi.org/10.1134/s0030400x20090210
https://doi.org/10.1134/s0030400x20090210
Autor:
D.M. Spiridonov, D.V. Chaikin, Andrey V. Chukin, Yu.D. Afonin, Ilya Weinstein, Alexander Vokhmintsev
Publikováno v:
Radiation Measurements. 122:91-96
Aluminum nitride crystals of regular geometric shape and with 0.1–2.0 μm size have been synthesized by original gas-phase technique. Using chemical composition analysis, the presence of main impurities of oxygen and silicon have been testified. Th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ecd292cf3eea6d08c921a3b86adf8f5f
https://doi.org/10.1016/j.radmeas.2019.02.001
https://doi.org/10.1016/j.radmeas.2019.02.001
Publikováno v:
Journal of Alloys and Compounds. 871:159471
Long-lasting luminescence in excited solid-state composites is of considerable interest as an inner light source for perspective materials capable to generate self-induced photoactivity after external irradiation turn-off. The corresponding slow ultr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::59c75fa9b29ab29fb1a7d3683015eb5a
https://doi.org/10.1016/j.jallcom.2021.159471
https://doi.org/10.1016/j.jallcom.2021.159471
Publikováno v:
Journal of Physics: Conference Series
Thermally stimulated luminescence (TSL) excitation and emission processes in h-BN nanopowders after UV irradiation were studied. TSL showed the highest response within the 5.4 eV band. 3.0 and 3.9 eV bands, resulting from the radiative donor-acceptor
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::02cfe7ca97a025b770152956a5e56e08
https://iopscience.iop.org/article/10.1088/1742-6596/1115/5/052025/pdf
https://iopscience.iop.org/article/10.1088/1742-6596/1115/5/052025/pdf
Publikováno v:
Bulletin of the Russian Academy of Sciences: Physics. 79:211-214
Spectra of the cathodoluminescence (CL) of single crystals and micropowders of AlN are studied. It is shown that bands with maxima at 3.2, 2.7 and 2.1 eV can be observed in the CL. The peaks at 2.7 and 3.2 eV are associated with ON centers and comple
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7e5396fc362e48627f3c2113540a7a15
https://doi.org/10.3103/s106287381502029x
https://doi.org/10.3103/s106287381502029x
Publikováno v:
AIP Conference Proceedings.
Diffuse reflectance spectra of h-BN nanostructured powder were analyzed using the Kubelka-Munk approach. Under the assumption of direct allowed transitions, the energy gap width of Eg = 5.41 eV was estimated. It was shown the observed spectral featur
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::df84e205dd4eecef0fa6f03fdf702571
https://doi.org/10.1063/1.5002918
https://doi.org/10.1063/1.5002918
Publikováno v:
Diamond and Related Materials
Excitation and emission spectra of thermoluminescence (TL) in bulk aluminum nitride single crystals irradiated by UV have been studied. TL has been found to be most effectively excited by the 5.04 eV photons. The 3.44 eV band caused by recombination
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::07791b81480ecbd560c5a09db4e3b9e5
https://doi.org/10.1016/j.diamond.2012.02.004
https://doi.org/10.1016/j.diamond.2012.02.004
Publikováno v:
Scopus-Elsevier
Funct. Mater.
Functional Materials
Funct. Mater.
Functional Materials
Photoluminescence (PL) properties of synthesized Al-rich nanowhiskers with diameter 60±20 nm and bulk AIN single crystals were compared at the room temperature. It was found that PL spectra for AIN nanowhiskers were characterized by three components
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a80b53bb596707201eed815b39cfb54f
http://dspace.nbuv.gov.ua/handle/123456789/120379
http://dspace.nbuv.gov.ua/handle/123456789/120379
Publikováno v:
Technical Physics Letters
Room-temperature optically stimulated luminescence (OSL) response in UV-irradiated aluminum nitride (AlN) powders has been studied. Excitation of AlN powder by UV photons with energies within 3-5 eV gives rise to an intense afterglow that is related
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0c09fe3078d1691ade88b939dd750f0b
https://elar.urfu.ru/handle/10995/50952
https://elar.urfu.ru/handle/10995/50952
Publikováno v:
Journal of Luminescence
Regularities of afterglow at room temperature and of thermoluminescence at further heating up to 673 K have been studied in bulk aluminum nitride single crystals. It has been established that after exposure to β-irradiation luminescence decay at RT
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::331ff418588b7e8ab853cfaac2436ed7
https://elar.urfu.ru/handle/10995/50981
https://elar.urfu.ru/handle/10995/50981