O. Khomenko, I. Berezovskaya, I. Stoyanova, N. Efryushina, V. Dotsenko, N. Poletaev, M. E. Khlebnikova
{"title":"mn掺杂纳米Al2O3的合成与发光研究","authors":"O. Khomenko, I. Berezovskaya, I. Stoyanova, N. Efryushina, V. Dotsenko, N. Poletaev, M. E. Khlebnikova","doi":"10.1109/NAP.2018.8915033","DOIUrl":null,"url":null,"abstract":"Mn<sup>3</sup>+-doped Al<inf>2</inf>O<inf>3</inf>was obtained by combustion method. It was found that the resulting powder, with particle sizes of 10–70 nm, consists of a mixture of transition aluminas <tex>$(\\delta^{*}, \\delta,\\ \\theta)$</tex>, among which <tex>$\\delta^{*}$</tex> -polymorph is dominant. The presence of Mn<sup>3</sup>+ ions results in a wide absorption band in the 400–620 nm region, but no emission of these ions was observed, probably due to a strong Jahn-Teller effect. It is shown that a part of Mn impurity ions exists in the oxidation state +2 and occupies tetrahedral positions in the <tex>$\\delta^{\\star}-\\mathrm{A}1_{2}\\mathrm{O}_{3}$</tex>, causing a broad emission band with a maximum at 520 nm.","PeriodicalId":239169,"journal":{"name":"2018 IEEE 8th International Conference Nanomaterials: Application & Properties (NAP)","volume":"107 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Synthesis and Luminescence Study of Mn-doped Nanosized Al2O3\",\"authors\":\"O. Khomenko, I. Berezovskaya, I. Stoyanova, N. Efryushina, V. Dotsenko, N. Poletaev, M. E. Khlebnikova\",\"doi\":\"10.1109/NAP.2018.8915033\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Mn<sup>3</sup>+-doped Al<inf>2</inf>O<inf>3</inf>was obtained by combustion method. It was found that the resulting powder, with particle sizes of 10–70 nm, consists of a mixture of transition aluminas <tex>$(\\\\delta^{*}, \\\\delta,\\\\ \\\\theta)$</tex>, among which <tex>$\\\\delta^{*}$</tex> -polymorph is dominant. The presence of Mn<sup>3</sup>+ ions results in a wide absorption band in the 400–620 nm region, but no emission of these ions was observed, probably due to a strong Jahn-Teller effect. It is shown that a part of Mn impurity ions exists in the oxidation state +2 and occupies tetrahedral positions in the <tex>$\\\\delta^{\\\\star}-\\\\mathrm{A}1_{2}\\\\mathrm{O}_{3}$</tex>, causing a broad emission band with a maximum at 520 nm.\",\"PeriodicalId\":239169,\"journal\":{\"name\":\"2018 IEEE 8th International Conference Nanomaterials: Application & Properties (NAP)\",\"volume\":\"107 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2018-09-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2018 IEEE 8th International Conference Nanomaterials: Application & Properties (NAP)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/NAP.2018.8915033\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2018 IEEE 8th International Conference Nanomaterials: Application & Properties (NAP)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/NAP.2018.8915033","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Synthesis and Luminescence Study of Mn-doped Nanosized Al2O3
Mn3+-doped Al2O3was obtained by combustion method. It was found that the resulting powder, with particle sizes of 10–70 nm, consists of a mixture of transition aluminas $(\delta^{*}, \delta,\ \theta)$, among which $\delta^{*}$ -polymorph is dominant. The presence of Mn3+ ions results in a wide absorption band in the 400–620 nm region, but no emission of these ions was observed, probably due to a strong Jahn-Teller effect. It is shown that a part of Mn impurity ions exists in the oxidation state +2 and occupies tetrahedral positions in the $\delta^{\star}-\mathrm{A}1_{2}\mathrm{O}_{3}$, causing a broad emission band with a maximum at 520 nm.