Luminescence of V4+ ions in corundum

Valbis, Ya. A.; Sandulenko, V. A.; Sidorova, E. A.; Springis, M. E.

doi:10.1007/bf00660353

Cited by 2 publications

(3 citation statements)

References 6 publications

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“…Very little research has been performed on the luminescence of undoped borates. Recently Valbis et a1 reported on the luminescence of undoped BaBZO4 [27]. Their results are in line with our results: upon bandgap excitation (160 nm) they observed a strongly Stokes shifted emission band (295 nm), which was tentatively ascribed to STE emission.…”

Section: Discussionsupporting

confidence: 92%

Photoluminescence, thermoluminescence and EPR studies on Zn₄B₆O₁₃

Meijerink

Blasse

Glasbeek

1990

J. Phys.: Condens. Matter

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Photoluminescence, thermoluminescence and temperature dependent EPR measurements on Zn4B6O13 are reported and discussed. The photoluminescence properties show that the intrinsic violet emission of this compound may originate from a strongly localised self-trapped exciton state. Four types of UV-induced paramagnetic centres are identified on the basis of g-values and hyperfine splitting, namely electrons trapped in two types of oxygen vacancies, electrons trapped on or near Mn2+ impurities and holes trapped by borate groups. The thermal decay of the paramagnetic centres is discussed in relation to the thermoluminescence.

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Section: Discussionsupporting

confidence: 92%

Photoluminescence, thermoluminescence and EPR studies on Zn₄B₆O₁₃

Meijerink

Blasse

Glasbeek

1990

J. Phys.: Condens. Matter

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show abstract

“…Very little has been known on the intrinsic luminescence of undoped borates. The luminescent properties of undoped a-BaB 2 O 4 34 and Zn 4 B 6 O 13 35 were reported previously, but the exact nature of the luminescence is still not clear. The UV emission of Zn 2 (OH)BO 3 crystals observed in photoluminescence is an intrinsic property of an undoped compound.…”

Section: Uv-vis Absorption and Luminescent Propertiesmentioning

confidence: 82%

“…37 Moreover, a band at 430 nm has also been observed in a ZnO sample but this emission has not been accounted for either. 38 Emissions of about 430 nm for the known compound a-BaB 2 O 4 34 and 435 and 590 nm for Zn 4 B 6 O 13 were also ascribed to the presence of unknown defects. 35 Since Zn 2 (OH)BO 3 exhibits similar visible emission at 564 nm, the presence of intrinsic defects in the forbidden band for this compound is very likely.…”

Section: Uv-vis Absorption and Luminescent Propertiesmentioning

confidence: 95%