Ilgspīdošā luminiscence ar Mn2+ un Cr3+ joniem aktivētā MgGeO3 materiālā

6533b85afe1ef96bd12b9ac0

RESEARCH PRODUCT

Ilgspīdošā luminiscence ar Mn2+ un Cr3+ joniem aktivētā MgGeO3 materiālā

subject

luminiscence pārejas metāli pēcspīdēšana Fizika lādiņu ķērjācentri

description

Luminiscējoši materiāli tiek plaši pielietoti gan ikdienišķiem, gan zinātniskiem mērķiem. Pēdējos gados pieaugusi interese par sarkaniem un infrasarkaniem ilgspīdētājiem īpaši tādēļ, ka tiem ir potenciāli pielietojumi medicīnā. Šajā darbā pētīta sarkanā un infrasarkanā luminiscence MgGeO3:Mn2+, Cr3+ materiālā. Darba gaitā paraugiem uzņemti ierosmes, fotoluminiscences, rentgenluminiscences un pēcspīdēšanas spektri, mērīta dzišanas kinētika un veikti termostimulētās luminiscences mērījumi. MgGeO3:Mn2+, Cr3+ materiālam raksturīga luminiscence platā spektra joslā no 600 līdz 1000 nm un novērojama efektīva pēcspīdēšana, kuru nodrošina ķērājcentri ar dziļumu 1.18 -1.36 eV. Balstoties uz iegūtajiem rezultātiem, veikti secinājumi par MgGeO3:Mn2+, Cr3+ materiāla luminiscences īpašībām un pēcspīdēšanas gaitā notiekošajiem procesiem.

year	journal	country	edition	language
2022-01-01

https://dspace.lu.lv/dspace/handle/7/60145

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