Dielectric and Optical Properties of Eux(Bi1-x)Sr2CaCu2O6.5 (x=0.3 and 1) Samples

Öz

Eu-based copper oxide layered ceramics have some interesting dielectric properties depending on its stoichiometric ratios and elements used in ceramics. In this study, optical properties of EuSr2CaCu2O6.5 and Eu0.3Bi0.7Sr2CaCu2O6.5 samples and dielectric property of EuSr2CaCu2O6.5 sample were investigated for the first time. Negative real permittivity for EuSr2CaCu2O6+x sample was observed at temperature with 373 K and higher temperatures and below than the cross over frequency with 14 Hz. Moreover, it is determined that Eu3+ concentration in the material affects the relative emission intensity.

Anahtar Kelimeler

• Eu-based ceramics
• Optical properties of Eu-based ceramics
• Dielectric properties of Eu-based ceramics.

Kaynakça

1. Devaraja C., Jagadeesha Gowda G. V., Eraiah B., A. M. Talwar, Dahshan A., Nazrin S.N., Structural, conductivity and dielectric properties of europium trioxide doped lead boro-tellurite glasses, J Alloy Compd, 898 (2022) 162967, https://doi.org/10.1016/j.jallcom.2021.162967
2. Doležal V., Jakeš V., Petrášek J., Ctibor P., Jankovský O., Rubešová K., Sedmidubský D., Dielectric properties of (Eu,Ca)Cu3Ti4O12 ceramics prepared by a sol-gel method, J Phys Chem Solids, 178 (2023), https://doi.org/10.1016/j.jpcs.2023.111334
3. Evangeline T G, Annamalai A R, Ctibor P., Effect of Europium Addition on the Microstructure and Dielectric Properties of CCTO Ceramic Prepared Using Conventional and Microwave Sintering, Molecules, 28(4) (2023)1649; https://doi.org/10.3390/molecules28041649
4. Kılıç M., Özdemir Z., Karabul Y., Karataş Ö., Çataltepe Ö. A., Negative real permittivity in (Bi0.3Eu0.7)Sr2CaCu2O6.5 ceramic, Phys. B: Condens. Matter, 584 (2020) 412080.
5. Özdemir Z.G., Kılıç M., Karabul Y., Erdönmez S., İçelli O., The influence of the partially europium substitution on the AC electrical properties of BiSr2CaCu2O6.5 ceramics, Process. Appl. Ceram., 13 (4) (2019) 323-332.
6. Omar N. A. S, Fen Y. W., Matori K. A, Zaid M. H. M., Norhafizah M. R, Nurzilla M., Zamratul M.I.M., Synthesis and optical properties of europium doped zinc silicate prepared using low cost solid state reaction method, J. Mater. Sci.: Mater. Electron., 27 (2) (2016) 1092-1099.
7. Cincovic M.M., Jankovic B., Milicevic B., Antic Z. and Whiffen R.K., Dramicanin M.D., The comparative kinetic analysis of the non-isothermal crystallization process of Eu3+ doped Zn2SiO4 powders prepared via polymer induced sol–gel method, Powder Technol., 249, (2013) 497-512.
8. Rojas S.S., Souza J.E.D., Yukimitu K., Hernandes A.C., Structural, thermal and optical properties of CaBO and CaLiBO glasses doped with Eu3+, J. Non- Cryst. Solids, (398) (2014) 57-61.

9. Kido J., Hayase H., Hongawa K., Nagai K., Okuyama K., Bright red light‐emitting organic electroluminescent devices having a europium complex as an emitter, Appl. Phys. Lett., 65 (1994) 2124-2126.
10. Kumari P. and Manam J., Enhanced red emission on co-doping of divalent ions (M2+= Ca2+, Sr2+, Ba2+) in YVO4: Eu3+ phosphor and spectroscopic analysis for its application in display devices, Spectrochim. Acta A Mol. Biomol. Spectrosc., 152 (2016)109-118.
11. Hebert T., Wannemacher R., Lenth W., Macfarlane R., Blue and green cw upconversion lasing in Er: YLiF4, Appl. Phys. Lett., 57 (1990) 1727-1729.
12. Dey R., Rai V.K., Yb3+ sensitized Er3+ doped La2O3 phosphor in temperature sensors and display devices, Dalton Trans., 43 (2014) 111-118.
13. Shalav A., Richards B., Trupke T., Krämer K.,. Güdel H.-U, Application of NaYF4: Er3+ up-converting phosphors for enhanced near-infrared silicon solar cell response, Appl. Phys. Lett., 86 (2005) 013505.
14. Wang J., Wei T., Li X., Zhang B., Wang J., Huang C., Yuan Q., Near‐Infrared‐Light‐Mediated Imaging of Latent Fingerprints based on Molecular Recognition, Angew. Chem., 126 (2014) 1642-1646.
15. Tsukube H., Shinoda S., Lanthanide complexes in molecular recognition and chirality sensing of biological substrates, Chem. Rev., 102 (2002) 2389-2404.
16. Hu Y., Zhuang W., Ye H., Zhang S., Fang Y., Huang X., Preparation and luminescent properties of (Ca1-x, Srx) S: Eu2+ red-emitting phosphor for white LED, J. Lumin., 111, (2005) 139-145.
17. Haque M.M., Kim D.K., Luminescent properties of Eu3+ activated MLa2(MoO4)4 based (M= Ba, Sr and Ca) novel red-emitting phosphors, Mater. Lett., 63 (2009) 793-796.
18. Ramakrishna S. A., Grzegorczyk T.M., Physics and Applications of Negative Refractive Index Materials, 1st ed. Washington: CRC Press, (2008).
19. Hou Q., Sun K., Xie P., Yan K., Fan R., Liu Y., Ultrahigh dielectric loss of epsilon-negative copper granular composites, Mater. Lett., 169 (2016) 86–89.
20. Shelby R.A., Smith D.R., Schultz S., Experimental verification of a negative index of refraction, Science, 292 (2001) 77–79.
21. Özdemir Z., Kılıç M., Karabul Y., Çataltepe Ö. A., İçelli O., Onbaşlı U., Structural and dielectric properties of Europium based copper oxide layered perovskite material, Ferroelectrics, 510 (1) (2017)121-131.
22. Özdemir Z., Kılıç M., Karabul Y., Mısırlıoğlu B., Çataltepe Ö. A., İçelli O., Synthesis and characterization of EuBa2Ca2Cu3O9-x: The influence of temperature on dielectric properties and charge transport mechanism, Mater. Sci. Semicond. Process, 63 (2017) 196-202.
23. Tripathy S.K., Pattanaik A., Optical and electronic properties of some semiconductors from energy gaps, Opt. Mater., 53 (2016) 123-133.
24. Yashodha S. R., Dhananjaya N., Manohara S. R., Yogananda H. S., Investigation of photoluminescence and dielectric properties of europium-doped LaOCl nanophosphor and its Judd–Ofelt analysis, J. Mater. Sci.: Mater. Electron., 32,(2021) 11511–11523.