{"title":"Light emission properties of nanoparticles doped with transition metal and rare earth ions","authors":"M. Godlewski, Sergey Yatsunneko, M. Godlewski","doi":"10.1117/12.726353","DOIUrl":null,"url":null,"abstract":"Nanoparticles of wide band gap II-VI compounds doped with transition metal (TM) and rare earth (RE) ions show fairly efficient light emission. Mechanisms of enhancement of 3d-3d (TM ions) and 4f-4f (RE ions) intra-shell transitions are discussed. It is demonstrated that quantum confinement, imposed on free carriers in nanoparticles, enhances spin dependent interactions of free carriers with TM and RE impurities. These interactions relax parity and spin selections rules for intra-shell transitions. We also show that host-to-impurity energy transfer is increased in nanoparticles, as compared to situation found in bulk samples.","PeriodicalId":273853,"journal":{"name":"International Conference on Advanced Optical Materials and Devices","volume":"43 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2006-02-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"International Conference on Advanced Optical Materials and Devices","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1117/12.726353","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
Nanoparticles of wide band gap II-VI compounds doped with transition metal (TM) and rare earth (RE) ions show fairly efficient light emission. Mechanisms of enhancement of 3d-3d (TM ions) and 4f-4f (RE ions) intra-shell transitions are discussed. It is demonstrated that quantum confinement, imposed on free carriers in nanoparticles, enhances spin dependent interactions of free carriers with TM and RE impurities. These interactions relax parity and spin selections rules for intra-shell transitions. We also show that host-to-impurity energy transfer is increased in nanoparticles, as compared to situation found in bulk samples.
京公网安备 11010802042870号
京ICP备2023020795号-1
分享
求助内容：
应助结果提醒方式：
扫码关注我们
