Electronic structure and VUV spectroscopy of bismuth-containing phosphate-tungstate crystals

International Conference on Oxide Materials for Electronic Engineering - fabrication, properties and applications (OMEE-2014) Pub Date : 2014-05-26 DOI:10.1109/OMEE.2014.6912395

Y. Hizhnyi, S. Nedilko, V. Chornii, K. Terebilenko, I. Zatovsky, V. Boyko

{"title":"Electronic structure and VUV spectroscopy of bismuth-containing phosphate-tungstate crystals","authors":"Y. Hizhnyi, S. Nedilko, V. Chornii, K. Terebilenko, I. Zatovsky, V. Boyko","doi":"10.1109/OMEE.2014.6912395","DOIUrl":null,"url":null,"abstract":"The origin of intrinsic luminescence and mechanisms of excitation energy transfer in undoped K2Bi(WO4)(PO4) and K6.5Bi2.5W4P6O34 crystals are revealed in complex experimental and computational studies. The photoluminescence (PL) properties are studied under the VUV synchrotron excitations. The electronic structures of the crystals are calculated using the FLAPW method. Calculations indicate different character of the density of electronic states in the lower parts of the Conduction bands of K2Bi(WO4)(PO4) and K6.5Bi2.5W4P6O34. The PL emission spectra of K2Bi(WO4)(PO4) and K6.5Bi2.5W4P6O34 reveal wide bands peaking near 540 and 620 nm respectively. The PL in both compounds is effectively excited in 3.7 - 8 eV region of excitation energies.","PeriodicalId":142377,"journal":{"name":"International Conference on Oxide Materials for Electronic Engineering - fabrication, properties and applications (OMEE-2014)","volume":"75 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2014-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"International Conference on Oxide Materials for Electronic Engineering - fabrication, properties and applications (OMEE-2014)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/OMEE.2014.6912395","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}

引用次数: 1

Abstract

The origin of intrinsic luminescence and mechanisms of excitation energy transfer in undoped K₂Bi(WO₄)(PO₄) and K_6.5Bi_2.5W₄P₆O₃₄ crystals are revealed in complex experimental and computational studies. The photoluminescence (PL) properties are studied under the VUV synchrotron excitations. The electronic structures of the crystals are calculated using the FLAPW method. Calculations indicate different character of the density of electronic states in the lower parts of the Conduction bands of K₂Bi(WO₄)(PO₄) and K_6.5Bi_2.5W₄P₆O₃₄. The PL emission spectra of K₂Bi(WO₄)(PO₄) and K_6.5Bi_2.5W₄P₆O₃₄ reveal wide bands peaking near 540 and 620 nm respectively. The PL in both compounds is effectively excited in 3.7 - 8 eV region of excitation energies.

查看原文

微信好友朋友圈 QQ好友复制链接

本刊更多论文

含铋磷酸盐钨酸盐晶体的电子结构和VUV光谱

在复杂的实验和计算研究中揭示了未掺杂K2Bi(WO4)(PO4)和K6.5Bi2.5W4P6O34晶体的本态发光起源和激发能转移机制。研究了VUV同步辐射激发下的光致发光特性。用FLAPW方法计算了晶体的电子结构。计算表明，K2Bi(WO4)(PO4)和K6.5Bi2.5W4P6O34的导带下部电子态密度具有不同的特征。K2Bi(WO4)(PO4)和K6.5Bi2.5W4P6O34的PL发射光谱分别在540 nm和620 nm附近显示出较宽的峰值。两种化合物的PL在3.7 ~ 8ev激发能范围内被有效激发。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文去求助

来源期刊

International Conference on Oxide Materials for Electronic Engineering - fabrication, properties and applications (OMEE-2014)

自引率

0.00%

发文量