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Title: Study intra-4f transitions of Sm3+ ions under direct photoexcitation in TiO2
Authors: Chapura, O. M.
Чапура, О. М.
Mikhnev, L. V.
Михнев, Л. В.
Bondarenko, E. A.
Бондаренко, Е. А.
Skomorokhov, A. A.
Скоморохов, А. А.
Goncharov, R. A.
Гончаров, Р. А.
Tsagikyan, A. A.
Цагикян, А. А.
Keywords: Oxides;Photoluminescence;Titanium dioxide;Anatase structures;Direct excitation;Samarium compounds
Issue Date: 2019
Publisher: Institute of Physics Publishing
Citation: Chapura, O.M., Mikhnev, L.V., Bondarenko, E.A., Skomorokhov, A.A., Goncharov, R.A., Tsagikyan, A.A. Study intra-4f transitions of Sm3+ ions under direct photoexcitation in TiO2 // IOP Conference Series: Materials Science and Engineering. - 2019. - Volume 597. - Issue 1. - Номер статьи 012052
Series/Report no.: IOP Conference Series: Materials Science and Engineering
Abstract: A systematic study of photoluminescence transitions of samarium ion (Sm3+) incorporated in titanium dioxide (TiO2) powder with anatase structure has been performed. Perceptible changes of luminescence under direct excitation as compared with indirect excitation of Sm3+ in titanium dioxide (TiO2:Sm3+) have been detected. Measurements of photoluminescence excitation spectra for all detected radiative transition of Sm3+ were accomplished. The values of asymmetry ratio were calculated for different excitation wavelengths. The dependence of luminescent intensity on Sm3+ doping concentration in TiO2 host was studied under direct and indirect excitation. Thus, evidences of the existence of the several Sm3+ sites in anatase TiO2 have been presented in this work
Appears in Collections:Статьи, проиндексированные в SCOPUS, WOS

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