Intrinsic luminescence and radiation defects in scapolite

E. Kaneva; P. Loginova; V. Gavrilenko; T. Radomskaya; V. Pankratova; R. Shendrik; V. Pankratov; E. Pankrushina

doi:10.1016/j.cplett.2024.141081

Intrinsic luminescence and radiation defects in scapolite

E. Kaneva
, P. Loginova
, V. Gavrilenko
, T. Radomskaya
, V. Pankratova
, R. Shendrik
, V. Pankratov
, E. Pankrushina

Institute of Solid State Physics, University of Latvia

Research output: Contribution to journal › Article › peer-review

4 Citations (Scopus)

Abstract

The intrinsic and impurity luminescence in natural meionite Ca₄[Al₆Si₆O₂₄]CO₃ (scapolite) is investigated. Several luminescence bands in the region of 3–5 eV are identified, with excitation occurring in the 6–8 eV range. These bands are associated with different complexes within the meionite structure. Additionally, impurity luminescence at approximately 2.25 eV is observed, which is attributed to Mn²⁺ ions. This luminescence is not only excited through intracenter d–d excitation but also in the region of excitation of intrinsic luminescence related to carbonate complexes. The origin of the blue coloration in the studied meionite is also discussed, which is attributed to the formation of CO₃^•- anion radicals after irradiation. These complexes are also detected in the Raman spectrum.

Original language	English
Article number	141081
Journal	Chemical Physics Letters
Volume	838
DOIs	https://doi.org/10.1016/j.cplett.2024.141081
Publication status	Published - Mar 2024

Keywords

Carbonate radicals
Intrinsic luminescence
Microporous
Radiation defects
Scapolite
Synchrotron excitation
VUV excitation

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10.1016/j.cplett.2024.141081

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title = "Intrinsic luminescence and radiation defects in scapolite",

abstract = "The intrinsic and impurity luminescence in natural meionite Ca4[Al6Si6O24]CO3 (scapolite) is investigated. Several luminescence bands in the region of 3–5 eV are identified, with excitation occurring in the 6–8 eV range. These bands are associated with different complexes within the meionite structure. Additionally, impurity luminescence at approximately 2.25 eV is observed, which is attributed to Mn2+ ions. This luminescence is not only excited through intracenter d–d excitation but also in the region of excitation of intrinsic luminescence related to carbonate complexes. The origin of the blue coloration in the studied meionite is also discussed, which is attributed to the formation of CO3•- anion radicals after irradiation. These complexes are also detected in the Raman spectrum.",

keywords = "Carbonate radicals, Intrinsic luminescence, Microporous, Radiation defects, Scapolite, Synchrotron excitation, VUV excitation",

author = "E. Kaneva and P. Loginova and V. Gavrilenko and T. Radomskaya and V. Pankratova and R. Shendrik and V. Pankratov and E. Pankrushina",

note = "Publisher Copyright: {\textcopyright} 2024 Elsevier B.V.",

year = "2024",

month = mar,

doi = "10.1016/j.cplett.2024.141081",

language = "English",

volume = "838",

journal = "Chemical Physics Letters",

issn = "0921-4526",

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TY - JOUR

T1 - Intrinsic luminescence and radiation defects in scapolite

AU - Kaneva, E.

AU - Loginova, P.

AU - Gavrilenko, V.

AU - Radomskaya, T.

AU - Pankratova, V.

AU - Shendrik, R.

AU - Pankratov, V.

AU - Pankrushina, E.

PY - 2024/3

Y1 - 2024/3

N2 - The intrinsic and impurity luminescence in natural meionite Ca4[Al6Si6O24]CO3 (scapolite) is investigated. Several luminescence bands in the region of 3–5 eV are identified, with excitation occurring in the 6–8 eV range. These bands are associated with different complexes within the meionite structure. Additionally, impurity luminescence at approximately 2.25 eV is observed, which is attributed to Mn2+ ions. This luminescence is not only excited through intracenter d–d excitation but also in the region of excitation of intrinsic luminescence related to carbonate complexes. The origin of the blue coloration in the studied meionite is also discussed, which is attributed to the formation of CO3•- anion radicals after irradiation. These complexes are also detected in the Raman spectrum.

AB - The intrinsic and impurity luminescence in natural meionite Ca4[Al6Si6O24]CO3 (scapolite) is investigated. Several luminescence bands in the region of 3–5 eV are identified, with excitation occurring in the 6–8 eV range. These bands are associated with different complexes within the meionite structure. Additionally, impurity luminescence at approximately 2.25 eV is observed, which is attributed to Mn2+ ions. This luminescence is not only excited through intracenter d–d excitation but also in the region of excitation of intrinsic luminescence related to carbonate complexes. The origin of the blue coloration in the studied meionite is also discussed, which is attributed to the formation of CO3•- anion radicals after irradiation. These complexes are also detected in the Raman spectrum.

KW - Carbonate radicals

KW - Intrinsic luminescence

KW - Microporous

KW - Radiation defects

KW - Scapolite

KW - Synchrotron excitation

KW - VUV excitation

UR - https://www.scopus.com/pages/publications/85183557171

U2 - 10.1016/j.cplett.2024.141081

DO - 10.1016/j.cplett.2024.141081

M3 - Article

SN - 0921-4526

VL - 838

JO - Chemical Physics Letters

JF - Chemical Physics Letters

M1 - 141081

ER -

Intrinsic luminescence and radiation defects in scapolite

Abstract

Keywords

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