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Thermal and luminescent properties of Eu2+-doped aluminates prepared by the sol–gel method

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Abstract

Alkaline earth aluminates with the overall nominal compositions Ca0.5Sr0.5Al2O4, Ca0.5Mg0.5Al2O4 and Mg0.5Sr0.5Al2O4 doped with 1 mol% of Eu2+ ions were prepared by the modified aqueous sol–gel method. The thermal behaviour of the xerogels was studied by the TG/DSC-MS technique under an argon and a reductive atmosphere (Ar/H2–5 %). Appropriate luminescent efficiency of the materials was achieved after annealing at temperatures lower than those in conventional solid state reactions. All three aluminates are mixtures of at least two phases; the monoclinic phase of CaAl2O4, the hexagonal phase of SrAl2O4 and the cubic phase of MgAl2O4 were identified. Solid solubility was recognised in the Ca0.5Sr0.5Al2O4:Eu2+ composition due to the similar ionic radii of Ca2+ and Sr2+. UV excited luminescence was observed in the blue region (λmax = 441 nm) in the aluminates containing the monoclinic phase of CaAl2O4 and in the green region (λmax = 520 nm) in the Mg0.5Sr0.5Al2O4:Eu2+ composition.

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References

  1. Tang Z, Zhang F, Zhang Z, Huang C, Lin Y. Luminescent properties of SrAl2O4: Eu, Dy material prepared by the gel method. J Eur Ceram Soc. 2000;20:2129–32.

    Article  CAS  Google Scholar 

  2. Aitasalo T, Deren P, Holsa J, Jungner H, Krupa J-C, Lastusaari M, Legendziewicz J, Niitykoski J, Strek W. Persistent luminescence phenomena in materials doped with rare earth ions. J Solid State Chem. 2003;171:114–22.

    Article  CAS  Google Scholar 

  3. Sharma P, Haranath D, Chander H, Singh S. Green chemistry-mediated synthesis of nanostructures of afterglow phosphor. Appl Surf Sci. 2008;254:4052–5.

    Article  CAS  Google Scholar 

  4. Ryu H, Bartwal KS. Photoluminescent Spectra of Nd3+ Co-doped CaAl2O4:Eu2+ blue phosphor. Res Lett Mater Sci. 2007;2007:1–4.

    Article  Google Scholar 

  5. Ayvacıklı M, Ege A, Yerci S, Can N. Synthesis and optical properties of Er3+ and Eu3+ doped SrAl2O4 phosphor ceramic. J Lumin. 2011;131:2432–9.

    Article  Google Scholar 

  6. Holsa J, Jungner H, Lastusaari M, Niittykoski J. Persistent luminescence of Eu2+ doped alkaline earth aluminates, MAl2O4:Eu2+. J Alloys Comp. 2001;323–324:326–30.

    Article  Google Scholar 

  7. Ryu H, Bartwal KS. Enhancement in photoluminescence on Mg substitution in Mg x Sr1−x Al2O4: Eu, Nd. Open Appl Phys J. 2009;2:1–4.

    Article  CAS  Google Scholar 

  8. Maia AS, Stefani R, Kodaira CA, Felinto MCFC, Teotonio EES, Brito HF. Luminescent nanoparticles of MgAl2O4:Eu, Dy prepared by citrate sol–gel method. Opt Mater. 2008;31:440–4.

    Article  CAS  Google Scholar 

  9. Yan B, Wu J. Sol–gel composition of multicomponent hybrid precursors to long afterglow of Ca x Sr1−x Al2O4: Eu2+ phosphors. Mater Lett. 2007;61:4851–3.

    Article  CAS  Google Scholar 

  10. Janakova S, Salavcova L, Renaudin G, Filinchuk Y, Boyer D, Boutinaud P. Preparation and structural investigations of sol–gel derived Eu3+-doped CaAl2O4. J Phys Chem Solids. 2007;68:1147–51.

    Article  CAS  Google Scholar 

  11. Aitasalo T, Holsa J, Jungner H, Lastusaari M, Niittykoski J, Saarinen J. Eu2+ doped calcium aluminate coatings by sol–gel methods. Opt Mater. 2005;27:1537–40.

    Article  CAS  Google Scholar 

  12. Aitasalo T, Holsa J, Jungner H, Lastusaari M, Niittykoski J. Sol–gel processed Eu2+-doped alkaline earth aluminates. J Alloys Compd. 2002;341:76–8.

    Article  CAS  Google Scholar 

  13. Aitasalo T, Holsa J, Jungner H, Lastusaari M, Niittykoski J. Comparison of sol–gel and solid-state prepared Eu2+ doped calcium aluminates. Mater Sci. 2002;20:15–20.

    CAS  Google Scholar 

  14. Escribano P, Marchal M, Sanjuán ML, Alonso-Gutiérrez P, Julián B, Cordoncillo E. Low–temperature synthesis of SrAl2O4 by a modified sol–gel route: XRD and Raman characterization. J Solid State Chem. 2005;178:1978–87.

    Article  CAS  Google Scholar 

  15. Xiaolin J, Haijun Z, Yongjie Y, Zhanjie L. Effect of the citrate sol–gel synthesis on the formation of MgAl2O4 ultrafine powder. Mater Sci Eng, A. 2004;379:112–8.

    Article  Google Scholar 

  16. Aitasalo T, Hölsa J, Jungner H, Krupa J-C, Lahtinen M, Lastusaari M, Legendziewicz J, Niitykoski J, Valkonen J. Spectroscopic and structural properties of Ca1−x Sr x Al2O4:Eu2+, RE3+ persistent luminescence materials. Radiat Eff Defects S. 2003;158:309–13.

    Article  CAS  Google Scholar 

  17. Chen L-T, Hwang C-S, Sun I-L, Chen I-G. Luminescence and chromaticity of alkaline earth aluminate M x Sr1−x Al2O4:Eu2+ (M: Ca, Ba). J Lumin. 2006;118:12–20.

    Article  CAS  Google Scholar 

  18. Francetič V, Bukovec P. Peptization and Al-Keggin species in alumina sol. Acta Chim Slov. 2008;55:904–8.

    Google Scholar 

  19. Mentus S, Jelić D, Grudić V. Lanthanum nitrate decomposition by both temperature programmed heating and citrate gel combustion. J Therm Anal Calorim. 2007;90:393–7.

    Article  CAS  Google Scholar 

  20. Małecki A, Gajerski R, Łabuś S, Prochowska-Klisch B, Wojciechowski KT. Mechanism of the thermal decomposition of transition metals nitrates (V). J Therm Anal Calorim. 2000;60:17–23.

    Article  Google Scholar 

  21. Prodjosantoso AK, Kennedy BJ. Solubility of SrAl2O4 in CaAl2O4: a high resolution powder diffraction study. Mater Res Bull. 2003;38:79–87.

    Article  CAS  Google Scholar 

  22. Klug HP, Alexander LE. X-ray diffraction procedures. 2nd ed. New York: Wiley; 1974.

    Google Scholar 

  23. Blasse B, Grabmaier BC. Luminescent materials. Berlin: Springer; 1994.

    Book  Google Scholar 

  24. Katsumata T, Sakai R, Komuro S, Morikawa T, Kimura H. Growth and characteristics of long duration phosphor crystals. J Cryst Growth. 1999;198–9:869–71.

    Article  Google Scholar 

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Acknowledgements

Financial support from the Slovenian Research Agency (ARRS), Ljubljana, (P-0134) is gratefully acknowledged. The authors are grateful to Prof. Dr. Anton Meden for helpful discussions about XRD analysis.

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Authors and Affiliations

  1. Faculty of Chemistry and Chemical Technology, University of Ljubljana, Aškerčeva 5, 1000, Ljubljana, Slovenia

    Nataša Čelan Korošin, Vojmir Francetič & Nataša Bukovec

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  1. Nataša Čelan Korošin
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  2. Vojmir Francetič
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  3. Nataša Bukovec
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Correspondence to Nataša Čelan Korošin.

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Fig. S1 TG and DSC curves of xerogels in an argon atmosphere (DOCX 137 kb)

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Čelan Korošin, N., Francetič, V. & Bukovec, N. Thermal and luminescent properties of Eu2+-doped aluminates prepared by the sol–gel method. J Therm Anal Calorim 111, 1291–1296 (2013). https://doi.org/10.1007/s10973-012-2451-y

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  • DOI: https://doi.org/10.1007/s10973-012-2451-y

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