结合光电离、光致发光和正电子湮没技术的中子辐照氨热氮化镓缺陷光谱研究

IF 0.3 4区物理与天体物理 Q4 PHYSICS, MULTIDISCIPLINARY

Lithuanian Journal of Physics Pub Date : 2020-01-05 DOI:10.3952/physics.v59i4.4137

J. Pavlov, T. Ceponis, L. Deveikis, Tanja Heikkinen, Jyrki Raisanen, V. Rumbauskas, G. Tamulaitis, F. Tuomisto, E. Gaubas

{"title":"结合光电离、光致发光和正电子湮没技术的中子辐照氨热氮化镓缺陷光谱研究","authors":"J. Pavlov, T. Ceponis, L. Deveikis, Tanja Heikkinen, Jyrki Raisanen, V. Rumbauskas, G. Tamulaitis, F. Tuomisto, E. Gaubas","doi":"10.3952/physics.v59i4.4137","DOIUrl":null,"url":null,"abstract":"In this work, pulsed photoionization as well as photoluminescence and positron annihilation spectroscopy were combined to detect different species of defects. The GaN crystals, grown by the ammono-thermal method, doped with Mn as well as Mg impurities and irradiated with different fluences of reactor neutrons, were examined to clarify the role of the technological and radiation defects. The evolution of the prevailing photoactive centres was examined by pulsed photoionization spectroscopy. Positron annihilation spectroscopy was applied to reveal vacancy-type defects.","PeriodicalId":18144,"journal":{"name":"Lithuanian Journal of Physics","volume":" ","pages":""},"PeriodicalIF":0.3000,"publicationDate":"2020-01-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Spectroscopy of defects in neutron irradiated ammono-thermal GaN by combining photoionization, photoluminescence and positron annihilation techniques\",\"authors\":\"J. Pavlov, T. Ceponis, L. Deveikis, Tanja Heikkinen, Jyrki Raisanen, V. Rumbauskas, G. Tamulaitis, F. Tuomisto, E. Gaubas\",\"doi\":\"10.3952/physics.v59i4.4137\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"In this work, pulsed photoionization as well as photoluminescence and positron annihilation spectroscopy were combined to detect different species of defects. The GaN crystals, grown by the ammono-thermal method, doped with Mn as well as Mg impurities and irradiated with different fluences of reactor neutrons, were examined to clarify the role of the technological and radiation defects. The evolution of the prevailing photoactive centres was examined by pulsed photoionization spectroscopy. Positron annihilation spectroscopy was applied to reveal vacancy-type defects.\",\"PeriodicalId\":18144,\"journal\":{\"name\":\"Lithuanian Journal of Physics\",\"volume\":\" \",\"pages\":\"\"},\"PeriodicalIF\":0.3000,\"publicationDate\":\"2020-01-05\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Lithuanian Journal of Physics\",\"FirstCategoryId\":\"101\",\"ListUrlMain\":\"https://doi.org/10.3952/physics.v59i4.4137\",\"RegionNum\":4,\"RegionCategory\":\"物理与天体物理\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"PHYSICS, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Lithuanian Journal of Physics","FirstCategoryId":"101","ListUrlMain":"https://doi.org/10.3952/physics.v59i4.4137","RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"PHYSICS, MULTIDISCIPLINARY","Score":null,"Total":0}

引用次数: 0

摘要

在这项工作中，脉冲光电离、光致发光和正电子湮灭光谱相结合，以检测不同种类的缺陷。采用氨热法生长GaN晶体，掺杂Mn和Mg杂质，并用不同的反应堆中子辐照，以阐明工艺缺陷和辐射缺陷的作用。用脉冲光电离光谱研究了主要光活性中心的演变。利用正电子湮没光谱分析了空位型缺陷。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

查看原文本刊更多论文

Spectroscopy of defects in neutron irradiated ammono-thermal GaN by combining photoionization, photoluminescence and positron annihilation techniques

In this work, pulsed photoionization as well as photoluminescence and positron annihilation spectroscopy were combined to detect different species of defects. The GaN crystals, grown by the ammono-thermal method, doped with Mn as well as Mg impurities and irradiated with different fluences of reactor neutrons, were examined to clarify the role of the technological and radiation defects. The evolution of the prevailing photoactive centres was examined by pulsed photoionization spectroscopy. Positron annihilation spectroscopy was applied to reveal vacancy-type defects.

求助全文

通过发布文献求助，成功后即可免费获取论文全文。去求助

来源期刊

Lithuanian Journal of Physics 物理-物理：综合

CiteScore

0.90

自引率

16.70%

发文量

审稿时长

>12 weeks

期刊介绍： The main aim of the Lithuanian Journal of Physics is to reflect the most recent advances in various fields of theoretical, experimental, and applied physics, including: mathematical and computational physics; subatomic physics; atoms and molecules; chemical physics; electrodynamics and wave processes; nonlinear and coherent optics; spectroscopy.