Y. Hizhnyi, S. Nedilko, V. Chornii, K. Terebilenko, I. Zatovsky, V. Boyko
{"title":"含铋磷酸盐钨酸盐晶体的电子结构和VUV光谱","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 K<sub>2</sub>Bi(WO<sub>4</sub>)(PO<sub>4</sub>) and K<sub>6.5</sub>Bi<sub>2.5</sub>W<sub>4</sub>P<sub>6</sub>O<sub>34</sub> 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 K<sub>2</sub>Bi(WO<sub>4</sub>)(PO<sub>4</sub>) and K<sub>6.5</sub>Bi<sub>2.5</sub>W<sub>4</sub>P<sub>6</sub>O<sub>34</sub>. The PL emission spectra of K<sub>2</sub>Bi(WO<sub>4</sub>)(PO<sub>4</sub>) and K<sub>6.5</sub>Bi<sub>2.5</sub>W<sub>4</sub>P<sub>6</sub>O<sub>34</sub> 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":"{\"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 K<sub>2</sub>Bi(WO<sub>4</sub>)(PO<sub>4</sub>) and K<sub>6.5</sub>Bi<sub>2.5</sub>W<sub>4</sub>P<sub>6</sub>O<sub>34</sub> 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 K<sub>2</sub>Bi(WO<sub>4</sub>)(PO<sub>4</sub>) and K<sub>6.5</sub>Bi<sub>2.5</sub>W<sub>4</sub>P<sub>6</sub>O<sub>34</sub>. The PL emission spectra of K<sub>2</sub>Bi(WO<sub>4</sub>)(PO<sub>4</sub>) and K<sub>6.5</sub>Bi<sub>2.5</sub>W<sub>4</sub>P<sub>6</sub>O<sub>34</sub> 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}","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}
Electronic structure and VUV spectroscopy of bismuth-containing phosphate-tungstate crystals
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.
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