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Luminescence and Electron–Hole-Trapping Centers in α-Ca2P2O7−Mn

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dc.contributor.author Nurakhmetov, Turlybek N.
dc.contributor.author Alibay, Temirulan T.
dc.contributor.author Zhangylyssov, Keleshek B.
dc.contributor.author Nurpeissov, Aibek S.
dc.contributor.author Pazylbek, Sapargali
dc.contributor.author Griesiute, Diana
dc.contributor.author Zarkov, Aleksej
dc.contributor.author Kareiva, Aivaras
dc.date.accessioned 2024-09-20T10:46:15Z
dc.date.available 2024-09-20T10:46:15Z
dc.date.issued 2024
dc.identifier.citation Nurakhmetov, T.N.; Alibay, T.T.; Zhangylyssov, K.B.; Nurpeissov, A.S.; Pazylbek, S.; Griesiute, D.; Zarkov, A.; Kareiva, A. Luminescence and Electron–Hole-Trapping Centers in α-Ca2P2O7−Mn. Crystals 2024, 14, 406. https://doi.org/10.3390/ cryst14050406 ru
dc.identifier.issn 2073-4352
dc.identifier.other doi.org/10.3390/cryst14050406
dc.identifier.uri http://rep.enu.kz/handle/enu/16768
dc.description.abstract The mechanisms of formation of induced intrinsic and impurity radiative states, which consist of intrinsic and impurity electron–hole-trapping center states in irradiated Ca2P2O7 − Mn and Ca2P2O7 phosphates, were investigated using thermoactivation and vacuum-ultraviolet spectroscopy methods. These centers are excited at photon energies of 4.0 eV and 4.5 eV, which are within the matrix’s transparency region. New radiative-induced states at 3.06 eV and 2.92 eV are demonstrated to be generated upon the excitation of anions by photons with energies of 5.0 and 5.64 eV. This process is due to charge transfer from the ion to the impurities, specifically Mn2+(O2− − Mn2+) and the neighboring ion O2− − (P2O7) 4−. Furthermore, upon the excitation of matrix anions with photon energies exceeding the band gap (8.0–8.25 eV), electron-trapping by impurities such as Mn2+ and ru
dc.language.iso en ru
dc.publisher Crystals ru
dc.relation.ispartofseries Volume 14 Issue 5;
dc.subject electrons and holes ru
dc.subject trapping center ru
dc.subject luminescence ru
dc.subject XRD ru
dc.subject SEM ru
dc.subject emission spectra ru
dc.subject excitation spectra ru
dc.title Luminescence and Electron–Hole-Trapping Centers in α-Ca2P2O7−Mn ru
dc.type Article ru


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