ZnO monokristālu luminiscence un inducētā absorbcija

6533b82bfe1ef96bd128e538

RESEARCH PRODUCT

ZnO monokristālu luminiscence un inducētā absorbcija

Mārtiņš Vanks

subject

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Šajā darbā pētīta luminiscence un īsi dzīvojošā absorbcija četriem dažādas izcelsmes ZnO monokristāliem, no kuriem viens paraugs ir aktivēts ar Ga. Luminiscence un īsi dzīvojošā absorbcija ierosināta ar liela blīvuma elektronu kūļa (1012 el/cm2, 10 ns, 270 keV) impulsiem. Reģistrēti arī stacionāras absorbcijas spektri. Luminiscences spektros ir ar pašvielas defektiem un eksitonu rekombināciju saistītas joslas. Diviem paraugiem novērota plata inducētās īsi dzīvojošās absorbcijas josla spektrālajā reģionā 1.1-2.7 eV, pārējiem paraugiem šajā reģionā novērota salīdzinoša neliela josla. Diskutēti minēto joslu iespējamie cēloņi. Mēģināts noskaidrot stacionāras absorbcijas spektros novērotā straujā absorbcijas pieauguma spektrālajā reģionā E > 3.0 eV cēloni un parādīta tā saistība ar novēroto īsi dzīvojošo absorbciju mazo enerģiju reģionā.

year	journal	country	edition	language
2013-01-01

https://dspace.lu.lv/dspace/handle/7/21738

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