Pub Date : 2014-05-26DOI: 10.1109/OMEE.2014.6912414
K. Seleznyova, M. Strugatsky, S. Yagupov, N. Postivey, A. Artemenko, J. Kliava
High quality FexGa1-xBO3 single crystals with 0 ≤ x ≤ 1 were synthesized and studied by electron magnetic resonance in the temperature range from 4 to 290 K. At low x, only the electron spin resonance (ESR) of diluted Fe3+ ions is present. Fitting to the experimental ESR spectra, assuming distributions of Fe3+ ligand coordinates, has shown the existence of local disorder in the crystals.
{"title":"Iron-doped gallium borate crystals: Synthesis and ESR study of local disorder","authors":"K. Seleznyova, M. Strugatsky, S. Yagupov, N. Postivey, A. Artemenko, J. Kliava","doi":"10.1109/OMEE.2014.6912414","DOIUrl":"https://doi.org/10.1109/OMEE.2014.6912414","url":null,"abstract":"High quality Fe<sub>x</sub>Ga<sub>1-x</sub>BO<sub>3</sub> single crystals with 0 ≤ x ≤ 1 were synthesized and studied by electron magnetic resonance in the temperature range from 4 to 290 K. At low x, only the electron spin resonance (ESR) of diluted Fe<sup>3+</sup> ions is present. Fitting to the experimental ESR spectra, assuming distributions of Fe<sup>3+</sup> ligand coordinates, has shown the existence of local disorder in the crystals.","PeriodicalId":142377,"journal":{"name":"International Conference on Oxide Materials for Electronic Engineering - fabrication, properties and applications (OMEE-2014)","volume":"62 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126804901","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2014-05-26DOI: 10.1109/OMEE.2014.6912320
A. Kleiner, G. Suchaneck, A. Dejneka, L. Jastrabík, V. Lavrentiev, D. Kiselev, G. Gerlach
Large area film deposition was performed by means of multitarget reactive magnetron sputtering from 200 mm diameter metallic targets (Pb, Ti, Zr) onto Cu-coated Kapton HN substrates. High-power pulse sputtering has been employed for the Zr-target (or alternatively for the Ti-target). Film composition profiles were evaluated by XPS and RBS. Piezoelectric properties were investigated by PFM.
{"title":"Multitarget sputtering of PZT-containing mixed oxide thin films onto copper-coated Kapton substrates","authors":"A. Kleiner, G. Suchaneck, A. Dejneka, L. Jastrabík, V. Lavrentiev, D. Kiselev, G. Gerlach","doi":"10.1109/OMEE.2014.6912320","DOIUrl":"https://doi.org/10.1109/OMEE.2014.6912320","url":null,"abstract":"Large area film deposition was performed by means of multitarget reactive magnetron sputtering from 200 mm diameter metallic targets (Pb, Ti, Zr) onto Cu-coated Kapton HN substrates. High-power pulse sputtering has been employed for the Zr-target (or alternatively for the Ti-target). Film composition profiles were evaluated by XPS and RBS. Piezoelectric properties were investigated by PFM.","PeriodicalId":142377,"journal":{"name":"International Conference on Oxide Materials for Electronic Engineering - fabrication, properties and applications (OMEE-2014)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130941805","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2014-05-26DOI: 10.1109/OMEE.2014.6912421
I. V. Odynets, S. Khainakov, A. Dikhtiarenko, A. A. Babaryk, N. Slobodyanik
The Ag2Nb4O11 (space group R3c, a = 6.1521(3) Å, c = 37.0455(7) Å) and Ag2Ta4O11 (space group R-3c, a = 6.21021(5) Å, c = 36.8708(3) Å) were prepared by conventional solid-state reaction. Their optical absorption, photocatalytic activity and electronic structure are reported.
采用常规固相反应法制备Ag2Nb4O11(空间群R3c, a = 6.1521(3) Å， c = 37.0455(7) Å)和Ag2Ta4O11(空间群R-3c, a = 6.21021(5) Å， c = 36.8708(3) Å)。报道了它们的光吸收、光催化活性和电子结构。
{"title":"Synthesis and photocatalytic properties of U3O8-type complex oxides Ag2M4O11 (M = Nb, Ta)","authors":"I. V. Odynets, S. Khainakov, A. Dikhtiarenko, A. A. Babaryk, N. Slobodyanik","doi":"10.1109/OMEE.2014.6912421","DOIUrl":"https://doi.org/10.1109/OMEE.2014.6912421","url":null,"abstract":"The Ag<sub>2</sub>Nb<sub>4</sub>O<sub>11</sub> (space group R3c, a = 6.1521(3) Å, c = 37.0455(7) Å) and Ag<sub>2</sub>Ta<sub>4</sub>O11 (space group R-3c, a = 6.21021(5) Å, c = 36.8708(3) Å) were prepared by conventional solid-state reaction. Their optical absorption, photocatalytic activity and electronic structure are reported.","PeriodicalId":142377,"journal":{"name":"International Conference on Oxide Materials for Electronic Engineering - fabrication, properties and applications (OMEE-2014)","volume":"76 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132839089","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2014-05-26DOI: 10.1109/OMEE.2014.6912394
A. Terebilenko, K. Terebilenko, N. Slobodyanik, E. Zubar’
The main crystallization trends of complex oxide compounds of yttrium and calcium from potassium phosphate-molybdate melts have been studied. The regions of formation K3Y(PO4)2, YPO4, KCaY(PO4)2 and K2CaP2O7 from high-temperature solutions of K-Ca-Y-P-Mo-O have been distinguished. The influence of K/Mo and P/Ca ratio in the initial melt has been shown to play the key role in solid phase formation.
{"title":"Synthesis and luminescence properties of calcium phosphates","authors":"A. Terebilenko, K. Terebilenko, N. Slobodyanik, E. Zubar’","doi":"10.1109/OMEE.2014.6912394","DOIUrl":"https://doi.org/10.1109/OMEE.2014.6912394","url":null,"abstract":"The main crystallization trends of complex oxide compounds of yttrium and calcium from potassium phosphate-molybdate melts have been studied. The regions of formation K<sub>3</sub>Y(PO<sub>4</sub>)<sub>2</sub>, YPO<sub>4</sub>, KCaY(PO<sub>4</sub>)<sub>2</sub> and K<sub>2</sub>CaP<sub>2</sub>O<sub>7</sub> from high-temperature solutions of K-Ca-Y-P-Mo-O have been distinguished. The influence of K/Mo and P/Ca ratio in the initial melt has been shown to play the key role in solid phase formation.","PeriodicalId":142377,"journal":{"name":"International Conference on Oxide Materials for Electronic Engineering - fabrication, properties and applications (OMEE-2014)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133676088","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2014-05-26DOI: 10.1109/OMEE.2014.6912390
V. Harutyunyan, E. Aleksanyan, M. Kirm, G. Yeritsyan, S. Nikoghosyan, A. Sahakyan, N. Grigoryan, V. Makhov
Electronic properties of electron and neutron irradiated α-Al2O3 single crystals were investigated using photoluminescence spectroscopy.
用光致发光光谱法研究了电子和中子辐照α-Al2O3单晶的电子性质。
{"title":"Luminescence spectroscopy of electron and neutron irradiated α-Al2O3 single crystals","authors":"V. Harutyunyan, E. Aleksanyan, M. Kirm, G. Yeritsyan, S. Nikoghosyan, A. Sahakyan, N. Grigoryan, V. Makhov","doi":"10.1109/OMEE.2014.6912390","DOIUrl":"https://doi.org/10.1109/OMEE.2014.6912390","url":null,"abstract":"Electronic properties of electron and neutron irradiated α-Al<sub>2</sub>O<sub>3</sub> single crystals were investigated using photoluminescence spectroscopy.","PeriodicalId":142377,"journal":{"name":"International Conference on Oxide Materials for Electronic Engineering - fabrication, properties and applications (OMEE-2014)","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132168462","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2014-05-26DOI: 10.1109/OMEE.2014.6912370
A. Baran, S. Mahlik, M. Grinberg, J. Barzowska, K. Szczodrowski, S. I. Kim, H. Seo
Effects of temperature on the luminescence of LiMgPO4 and β-Ca2SiO4 doped with Eu3+ and Eu2+ is presented. The short distance compensation of the Eu3+ in the Ca2+ sites in β-Ca2SiO4:Eu2+/Eu3+ and the long distance compensation of Eu3+ in the Mg2+ or other sites in LiMgPO4:Eu2+/Eu3+ is responsible for different temperature behaviour of the luminescence in both materials. The importance of the energy of the Fermi level is also discusses.
{"title":"Charge transfer and europium trapped exciton states in Eu3+/Eu2+ doped phosphors","authors":"A. Baran, S. Mahlik, M. Grinberg, J. Barzowska, K. Szczodrowski, S. I. Kim, H. Seo","doi":"10.1109/OMEE.2014.6912370","DOIUrl":"https://doi.org/10.1109/OMEE.2014.6912370","url":null,"abstract":"Effects of temperature on the luminescence of LiMgPO<sub>4</sub> and β-Ca<sub>2</sub>SiO<sub>4</sub> doped with Eu<sup>3+</sup> and Eu<sup>2+</sup> is presented. The short distance compensation of the Eu<sup>3+</sup> in the Ca<sub>2</sub>+ sites in β-Ca<sub>2</sub>SiO<sub>4</sub>:Eu<sup>2+</sup>/Eu<sup>3+</sup> and the long distance compensation of Eu<sup>3+</sup> in the Mg<sup>2+</sup> or other sites in LiMgPO<sub>4</sub>:Eu<sup>2+</sup>/Eu<sup>3+</sup> is responsible for different temperature behaviour of the luminescence in both materials. The importance of the energy of the Fermi level is also discusses.","PeriodicalId":142377,"journal":{"name":"International Conference on Oxide Materials for Electronic Engineering - fabrication, properties and applications (OMEE-2014)","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114758025","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2014-05-26DOI: 10.1109/OMEE.2014.6912374
V. Baumer, A. Doroshenko, D. Kosyanov, S. Parkhomenko, A. Tolmachev, V. Voznyy, R. Yavetskiy
Peculiarities of phase formation and densification processes during reactive sintering of Nd3+:YAG laser ceramics prepared using particles with different size have been studied. It has been found that utilization of submicron powders can significantly reduce YAG formation temperature from 1700°C for coarse powder to 1200-1500°C for fine powders. Moreover, utilization of different-sized yttria and alumina particles provide a competitive advantage of shrinkage over expansion processes by changing the kinetics of YAG phase formation. Nd3+:YAG (1-4 at.%) laser ceramics with in-line optical transmission of about 81.5 % at λ=1064 nm has been produced by reactive sintering. Finally, we succeed in lasing of Nd3+:YAG (4 at.%) ceramics under pulsed laser diode pumping.
{"title":"Fabrication and characterization of 1–4 at.% Nd3+:Y3Al5O12 Laser Ceramics by solid-state reactive sintering","authors":"V. Baumer, A. Doroshenko, D. Kosyanov, S. Parkhomenko, A. Tolmachev, V. Voznyy, R. Yavetskiy","doi":"10.1109/OMEE.2014.6912374","DOIUrl":"https://doi.org/10.1109/OMEE.2014.6912374","url":null,"abstract":"Peculiarities of phase formation and densification processes during reactive sintering of Nd3+:YAG laser ceramics prepared using particles with different size have been studied. It has been found that utilization of submicron powders can significantly reduce YAG formation temperature from 1700°C for coarse powder to 1200-1500°C for fine powders. Moreover, utilization of different-sized yttria and alumina particles provide a competitive advantage of shrinkage over expansion processes by changing the kinetics of YAG phase formation. Nd3+:YAG (1-4 at.%) laser ceramics with in-line optical transmission of about 81.5 % at λ=1064 nm has been produced by reactive sintering. Finally, we succeed in lasing of Nd3+:YAG (4 at.%) ceramics under pulsed laser diode pumping.","PeriodicalId":142377,"journal":{"name":"International Conference on Oxide Materials for Electronic Engineering - fabrication, properties and applications (OMEE-2014)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121971518","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2014-05-26DOI: 10.1109/OMEE.2014.6912359
V. Kotsyubynsky, Al-Saedi Abdul Halek Zamil, V. Moklyak, R. Lisovsky
Work reports the formation of LiFePO4 nanoparticles under hydrothermal method with the investigation of the synthesis conditions (temperature, duration, relative content of polyethylene glycol addition) influence on the obtained material phase composition and magnetic microstructure. The increasing of material conductivity by a formation of carbon coating around the LiFePO4 particles was studied.
{"title":"The influence of hydrothermal synthesis conditions on the properties of LiFePO4 nanoparticles","authors":"V. Kotsyubynsky, Al-Saedi Abdul Halek Zamil, V. Moklyak, R. Lisovsky","doi":"10.1109/OMEE.2014.6912359","DOIUrl":"https://doi.org/10.1109/OMEE.2014.6912359","url":null,"abstract":"Work reports the formation of LiFePO4 nanoparticles under hydrothermal method with the investigation of the synthesis conditions (temperature, duration, relative content of polyethylene glycol addition) influence on the obtained material phase composition and magnetic microstructure. The increasing of material conductivity by a formation of carbon coating around the LiFePO4 particles was studied.","PeriodicalId":142377,"journal":{"name":"International Conference on Oxide Materials for Electronic Engineering - fabrication, properties and applications (OMEE-2014)","volume":"98 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117091804","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2014-05-26DOI: 10.1109/OMEE.2014.6912372
A. Suchocki, H. Przybylińska, A. Wittlin, M. Berkowski, Chonggeng Ma, M. Brik, A. Kamińska, P. Sybilski, Y. Zorenko, M. Nikl, V. Gorbenko, M. Kucera, A. Wajler, M. Malinowski
Low-temperature infrared spectra reveal multicenter nature of the Ce3+ dopant in various Czochralski grown garnets, perovskite crystals, and YAG transparent glass. Some of these multicenters are associated with antisite defects, i.e. rare-earth ions substituting smaller cations in different crystallographic positions. The antisite defects have detrimental effect on the scintillation properties of these materials. The epitaxially-grown from flux layers of these materials contain much smaller amount of these defects due to low temperature of growth.
{"title":"Ce3+ multicenters in selected garnets, perovskites, and glasses","authors":"A. Suchocki, H. Przybylińska, A. Wittlin, M. Berkowski, Chonggeng Ma, M. Brik, A. Kamińska, P. Sybilski, Y. Zorenko, M. Nikl, V. Gorbenko, M. Kucera, A. Wajler, M. Malinowski","doi":"10.1109/OMEE.2014.6912372","DOIUrl":"https://doi.org/10.1109/OMEE.2014.6912372","url":null,"abstract":"Low-temperature infrared spectra reveal multicenter nature of the Ce3+ dopant in various Czochralski grown garnets, perovskite crystals, and YAG transparent glass. Some of these multicenters are associated with antisite defects, i.e. rare-earth ions substituting smaller cations in different crystallographic positions. The antisite defects have detrimental effect on the scintillation properties of these materials. The epitaxially-grown from flux layers of these materials contain much smaller amount of these defects due to low temperature of growth.","PeriodicalId":142377,"journal":{"name":"International Conference on Oxide Materials for Electronic Engineering - fabrication, properties and applications (OMEE-2014)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128175743","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2014-05-26DOI: 10.1109/OMEE.2014.6912442
Y. Zhydachevskii, I. Kamińska, M. Berkowski, A. Twardak, P. Bilski, S. Ubizskii, A. Suchocki
The work presents some results on thermoluminescent dosimetry properties of YAlO3:Mn-based single crystalline and ceramic detectors for gamma (60Co), beta (90Sr/90Y) and alpha (241Am) radiation.
{"title":"Some features of YAlO3:Mn-based crystalline and ceramic TL detectors","authors":"Y. Zhydachevskii, I. Kamińska, M. Berkowski, A. Twardak, P. Bilski, S. Ubizskii, A. Suchocki","doi":"10.1109/OMEE.2014.6912442","DOIUrl":"https://doi.org/10.1109/OMEE.2014.6912442","url":null,"abstract":"The work presents some results on thermoluminescent dosimetry properties of YAlO<sub>3</sub>:Mn-based single crystalline and ceramic detectors for gamma (<sup>60</sup>Co), beta (<sup>90</sup>Sr/<sup>90</sup>Y) and alpha (<sup>241</sup>Am) radiation.","PeriodicalId":142377,"journal":{"name":"International Conference on Oxide Materials for Electronic Engineering - fabrication, properties and applications (OMEE-2014)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129552070","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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