MgWO4晶体的发光特性

2012 IEEE International Conference on Oxide Materials for Electronic Engineering (OMEE) Pub Date : 2012-09-01 DOI:10.1109/OMEE.2012.6464745

N. Krutyak, V. Mikhailin, D. Spassky, I. Tupitsyna, A. Dubovik

{"title":"MgWO4晶体的发光特性","authors":"N. Krutyak, V. Mikhailin, D. Spassky, I. Tupitsyna, A. Dubovik","doi":"10.1109/OMEE.2012.6464745","DOIUrl":null,"url":null,"abstract":"Luminescent properties of magnesium tungstate were investigated. Two samples of MgWO4 single crystals grown by different methods were studied. Only intrinsic luminescence attributed to exciton emission was detected for the both samples and. It was shown that the temperature dependence of the low-energy edge in the excitation spectra obeys Urbach rule. Steepness coefficient that was deduced from this dependence indicates self-trapping of excitons in MgWO4. The absence of cation d states in the valence band is a distinctive feature of MgWO4 that is shown to be manifested in the luminescence excitation spectra.","PeriodicalId":6332,"journal":{"name":"2012 IEEE International Conference on Oxide Materials for Electronic Engineering (OMEE)","volume":"60 1","pages":"235-236"},"PeriodicalIF":0.0000,"publicationDate":"2012-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":"{\"title\":\"Luminescent properties of MgWO4 crystals\",\"authors\":\"N. Krutyak, V. Mikhailin, D. Spassky, I. Tupitsyna, A. Dubovik\",\"doi\":\"10.1109/OMEE.2012.6464745\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Luminescent properties of magnesium tungstate were investigated. Two samples of MgWO4 single crystals grown by different methods were studied. Only intrinsic luminescence attributed to exciton emission was detected for the both samples and. It was shown that the temperature dependence of the low-energy edge in the excitation spectra obeys Urbach rule. Steepness coefficient that was deduced from this dependence indicates self-trapping of excitons in MgWO4. The absence of cation d states in the valence band is a distinctive feature of MgWO4 that is shown to be manifested in the luminescence excitation spectra.\",\"PeriodicalId\":6332,\"journal\":{\"name\":\"2012 IEEE International Conference on Oxide Materials for Electronic Engineering (OMEE)\",\"volume\":\"60 1\",\"pages\":\"235-236\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2012-09-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"1\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2012 IEEE International Conference on Oxide Materials for Electronic Engineering (OMEE)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/OMEE.2012.6464745\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2012 IEEE International Conference on Oxide Materials for Electronic Engineering (OMEE)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/OMEE.2012.6464745","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}

引用次数: 1

摘要

研究了钨酸镁的发光性能。对两种不同生长方法的MgWO4单晶样品进行了研究。样品和样品只检测到由激子发射引起的本征发光。结果表明，激发谱中低能边的温度依赖关系符合厄巴赫规则。从这种依赖关系推导出的陡峭系数表明，MgWO4中存在激子的自俘获。在价带中没有阳离子d态是MgWO4的一个显著特征，这在发光激发光谱中得到了体现。

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

Luminescent properties of MgWO4 crystals

Luminescent properties of magnesium tungstate were investigated. Two samples of MgWO4 single crystals grown by different methods were studied. Only intrinsic luminescence attributed to exciton emission was detected for the both samples and. It was shown that the temperature dependence of the low-energy edge in the excitation spectra obeys Urbach rule. Steepness coefficient that was deduced from this dependence indicates self-trapping of excitons in MgWO4. The absence of cation d states in the valence band is a distinctive feature of MgWO4 that is shown to be manifested in the luminescence excitation spectra.

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

2012 IEEE International Conference on Oxide Materials for Electronic Engineering (OMEE)

自引率

0.00%

发文量