Augšuppārveidotā luminiscence ar erbiju aktivētā NaYF4

6533b82cfe1ef96bd128f98b

RESEARCH PRODUCT

Augšuppārveidotā luminiscence ar erbiju aktivētā NaYF4

Kārlis Jirgensons

subject

šķērsrelaksācija daudzfononu relaksācija Fizika Augšuppārveidotā luminiscence enerģijas pārnese luminiscences spektrs

description

Darbā pētīti heksagonāli NaYF4:Er3+ paraugi, kas aktivēti ar erbija joniem dažādās koncentrācijās. Paraugiem ir mērītas rentgenstaru difrakcijas, augšuppārveidotās luminiscences spektri un luminiscences kinētikas. Fotoluminiscences spektros ir novērotas erbija raksturīgās, dominējošās luminiscences joslas sarkanajā un zaļajā spektra daļā. Pie dažādām erbija jonu koncentrācijām, šo joslu intensitāšu savstarpējā attiecība mainās, un no luminiscences kinētikas mērījumiem ir konstatēts, ka šīs izmaiņas notiek enerģijas pārneses dēļ starp erbija joniem. Balstoties uz eksperimentālajiem mērījumiem ir spriests par augšupparveidotās luminiscences mehānismiem un enerģijas pārneses procesiem starp erbija joniem heksagonālā NaYF4:Er3+.

year	journal	country	edition	language
2018-01-01

https://dspace.lu.lv/dspace/handle/7/38908

PEPhysical Sciences and Engineering
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