Результаты исследований: Научные публикации в периодических изданиях › статья
Luminescence of photoactivated pristine and Cr-doped MgAl2O4 spinel. / Artemyeva, E. S.; Barinov, D. S.; Atitar, F. M.; Murashkina, A. A.; Emeline, A. V.; Serpone, N.
в: Chemical Physics Letters, № 626, 2015, стр. 6-10.Результаты исследований: Научные публикации в периодических изданиях › статья
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TY - JOUR
T1 - Luminescence of photoactivated pristine and Cr-doped MgAl2O4 spinel
AU - Artemyeva, E. S.
AU - Barinov, D. S.
AU - Atitar, F. M.
AU - Murashkina, A. A.
AU - Emeline, A. V.
AU - Serpone, N.
PY - 2015
Y1 - 2015
N2 - This Letter reports a comparative study of the luminescence from pristine and Cr-doped MgAl2O4 spinel induced by different excitation mechanisms: photoluminescence (PhL), thermoluminescence (ThL) and Photo-Induced Chemisorption Luminescence (the PhICL phenomenon) to understand the mechanism of PhICL emission. Cr-doping alters the major pathway of physical relaxation through a luminescence pathway: quenching of the luminescence associated with intrinsic defects and appearance of the luminescence from Cr3+-states. The similarity between ThL and PhICL spectra suggest the mechanism of the PhICL phenomenon is due to electron transfer from the surface to the emission centers of luminescence;an energy transfer pathway is not precluded.
AB - This Letter reports a comparative study of the luminescence from pristine and Cr-doped MgAl2O4 spinel induced by different excitation mechanisms: photoluminescence (PhL), thermoluminescence (ThL) and Photo-Induced Chemisorption Luminescence (the PhICL phenomenon) to understand the mechanism of PhICL emission. Cr-doping alters the major pathway of physical relaxation through a luminescence pathway: quenching of the luminescence associated with intrinsic defects and appearance of the luminescence from Cr3+-states. The similarity between ThL and PhICL spectra suggest the mechanism of the PhICL phenomenon is due to electron transfer from the surface to the emission centers of luminescence;an energy transfer pathway is not precluded.
U2 - 10.1016/j.cplett.2015.02.050
DO - 10.1016/j.cplett.2015.02.050
M3 - Article
SP - 6
EP - 10
JO - Chemical Physics Letters
JF - Chemical Physics Letters
SN - 0009-2614
IS - 626
ER -
ID: 3929501