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Effects of crystallization and dopant concentration on the emission behavior of TiO2:Eu nanophosphors

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Pal, Mou, Pal, Umapada, Jiménez, Justo Miguel Gracia Y, Pérez-Rodríguez, Felipe·2012·Nanoscale Research Letters
DOI 10.1186/1556-276x-7-1
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Abstract

Uniform, spherical-shaped TiO2:Eu nanoparticles with different doping concentrations have been synthesized through controlled hydrolysis of titanium tetrabutoxide under appropriate pH and temperature in the presence of EuCl3·6H2O. Through air annealing at 500°C for 2 h, the amorphous, as-grown nanoparticles could be converted to a pure anatase phase. The morphology, structural, and optical properties of the annealed nanostructures were studied using X-ray diffraction, scanning electron microscopy, energy-dispersive X-ray spectroscopy [EDS], and UV-Visible diffuse reflectance spectroscopy techniques. Optoelectronic behaviors of the nanostructures were studied using micro-Raman and photoluminescence [PL] spectroscopies at room temperature. EDS results confirmed a systematic increase of Eu content in the as-prepared samples with the increase of nominal europium content in the reaction solution. With the increasing dopant concentration, crystallinity and crystallite size of the titania particles decreased gradually. Incorporation of europium in the titania particles induced a structural deformation and a blueshift of their absorption edge. While the room-temperature PL emission of the as-grown samples is dominated by the 5D0 - 7Fj transition of Eu+3 ions, the emission intensity reduced drastically after thermal annealing due to outwards segregation of dopant ions.

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Research works printed but not linked: 42

  1. Jianhua H, Guogen H, Xiongwu H, Rui W: Blue-light emission from undoped and rare-earth doped wide bandgap oxides. J Rare Earths 2006, 24: 728–731. · doi:10.1016/s1002-0721(07)60017-9
  2. Linh NH, Trang NT, Cuong NT, Thao PH, Cong BT: Influence of doped rare earth elements on electronic properties of the R0.25Ca0.75MnO3systems. Comput Mater Sci 2010, 50: 2–5. · doi:10.1016/j.commatsci.2010.03.002
  3. Joannopoulos JD, Villeneuve PR, Fan S: Photonic crystals: putting a new twist on light. Nature 1997, 386: 143–149. · DOI · Paper page
  4. Ghis A, Meyer R, Rambaud P, Levy F, Leroux T: Sealed vacuum devices: fluorescent microtip displays. IEEF Trans Electron Devices 1991, 38: 2320–2322. · doi:10.1109/16.88518
  5. Du YP, Zhang YW, Sun LD, Yan CH: Efficient energy transfer in monodisperse Eu-doped ZnO nanocrystals synthesized from metal acetylacetonates in high-boiling solvents. J Phys Chem C 2008, 112: 12234–12241. · DOI · Paper page
  6. Tanabe S, Sugimoto N, Ito S, Hanada T: Broad-band 1.5 μm emission of Er3+ions in bismuth-based oxide glasses for potential WDM amplifier. J Luminesc 2000, 87: 670–672. · doi:10.1016/s0022-2313(99)00352-x
  7. DeLoach LD, Payne SA, Chase LL, Smith LK, Kway WL, Krupke WF: Evaluation of absorption and emission properties of Yb3+doped crystals for laser applications. IEEE J Quantum Electron 1993, 29: 1179–1191. · doi:10.1109/3.214504
  8. Soukka T, Kuningas K, Rantanen T, Haaslahti V, Lovgren T: Photochemical characterization of upconverting inorganic lanthanide phosphors as potential labels. J Fluoresc 2005, 15: 513–528. · doi:10.1007/s10895-005-2825-7
  9. Das GK, Yang-Tan TT: Rare-earth-doped and codoped Y2O3nanomaterials as potential bioimaging probes. J Phys Chem C 2008, 112: 11211–11217. · doi:10.1021/jp802076n
  10. Xiao Q, Si Z, Yu Z, Qiu G: Sol-gel auto-combustion of samarium-doped TiO2nanoparticles and their photocatalytic activity under visible light irradiation. Mater Sci Eng B 2007, 137: 189–194. · DOI
  11. Liu Y, Luo W, Li R, Chen X: Optical properties of Nd3+ion-doped ZnO nanocrystals. J Nanosci Nanotechnol 2010, 10: 1871–1876. · doi:10.1166/jnn.2010.2140
  12. Wakefield G, Holland E, Dobson PJ, Hutchison JL: Luminescence properties of nanocrystalline Y2O3:Eu. Adv Mater 2001, 13: 1557–1560. · doi:10.1002/1521-4095(200110)13:20<1557::aid-adma1557>3.0.co;2-w
  13. Wang L, Li Y: Na(Y1.5Na0.5)F6single-crystal nanorods as multicolor luminescent materials. Nano Lett 2006, 6: 1645–1649. · DOI · Paper page
  14. Wang H, Lin CK, Liu XM, Lin J, Yu M: Monodisperse spherical core-shell-structured phosphors obtained by functionalization of silica spheres with Y2O3:Eu3+layers for field emission displays. Appl Phys Lett 2005, 87: 181907–181909. · doi:10.1063/1.2123382
  15. Luo M, Cheng K, Weng W, Song C, Du P, Shen G, Xu G, Han G: Enhanced luminescence of Eu-doped TiO2nanodots. Nanoscale Res Lett 2009, 4: 809–813. · doi:10.1007/s11671-009-9319-5
  16. Yin J, Xiang L, Zhao X: Monodisperse spherical mesoporous Eu-doped TiO2phosphor particles and the luminescence properties. Appl Phys Lett 2007, 90: 113112–113114. · doi:10.1063/1.2712495
  17. Ningthoujama RS, Sudarsana V, Vatsaa RK, Kadam RM, Jagannath , Gupta A: Photoluminescence studies on Eu doped TiO2nanoparticles. J Alloys Compounds 2009, 486: 864–870. · doi:10.1016/j.jallcom.2009.07.090
  18. Rocha LA, Avila RL, Caetano BL, Molina EF, Sacco HC, Ciuffi KJ, Calefim PS, Nassar E: Europium incorporated into titanium oxide by the sol-gel method. Mater Res 2005, 8: 361–364. · doi:10.1590/s1516-14392005000300024
  19. Zhao J, Duan H, Ma Z, Wang T, Chen C, Xie E: Temperature and TiO2content effects on the photoluminescence properties of Eu3+doped TiO2-SiO2powders. J Appl Phys 2008, 104: 053515–053515–5. · doi:10.1063/1.2975976
  20. Li J-G, Wang X, Watanabe K, Ishigaki T: Phase structure and luminescence properties of Eu+3doped TiO2nanocrystals synthesized by Ar/O2radio frequency thermal plasma oxidation of liquid precursor mists. J Phys Chem B 2006, 110: 1121–1127. · DOI
  21. Rubio MI, Ireland TG, Fern GR, Silver J, Snowden MJ: A new application for microgels: novel methods for the synthesis of spherical particles of Y2O3:Eu phosphor using a copolymer microgel of NIPAM and acrylic acid. Langmuir 2001, 147: 7145–7149. · doi:10.1021/la0105883
  22. Chi B, Victorio ES, Jin T: Synthesis of Eu-doped, photoluminescent titania nanotubes via a two-step hydrothermal treatment. Nanotechnology 2006, 17: 2234–2241. · doi:10.1088/0957-4484/17/9/027
  23. Julian B, Corberan R, Cordoncillo E, Escribano P, Viana B, Sanchez C: One-pot synthesis and optical properties of Eu3+-doped nanocrystalline TiO2and ZrO2. Nanotechnology 2005, 16: 2707–2713. · doi:10.1088/0957-4484/16/11/040
  24. Xu CY, Zhang PX, Yan L: Blue shift of Raman peak from coated TiO2nanoparticles. J Raman Spectroscopy 2001, 32: 862–865. · DOI · Paper page
  25. Popa M, Diamandescu L, Vasiliu F, Teodorescu CM, Cosoveanu V, Baia M, Feder M, Baia L, Danciu V: Synthesis, structural characterization, and photocatalytic properties of iron-doped TiO2aerogels. J Mater Sci 2009, 44: 358–364. · DOI
  26. Ohsaka T: Temperature dependence of the Raman spectrum in anatase TiO2. J Phys Soc Jpn 1980, 48: 1661–1668. · DOI
  27. Choi HC, Jung YM, Kim SB: Size effects in the Raman spectra of TiO2nanoparticles. Vibrational Spectrosc 2005, 37: 33–38. · DOI · Paper page
  28. Wendlandt W, Hecht HG: Reflectance Spectroscopy. New York: Wiley Interscience; 1966.
  29. Asahi R, Taga Y, Mannstadt W, Freeman AJ: Electronic and optical properties of anatase TiO2. Phys Rev B 2000, 61: 7459–7465. · DOI · Paper page
  30. Kumar S, Jindal Z, Kumari N, Verma NK: Solvothermally synthesized europium-doped CdS nanorods: applications as phosphors. J Nanopart Res 2011, 13: 5465–5471. · doi:10.1007/s11051-011-0534-5
  31. Yu J, Xiang Q, Zhou M: Preparation, characterization and visible-light-driven photocatalytic activity of Fe-doped titania nanorods and first-principles study for electronic structures. Appl Catalysis B: Environmetal 2009, 90: 595–602. · DOI · Paper page
  32. Coronado D, Gattorno G, Pesqueira ME, Cab C, Coss R, Oskam G: Phase-pure TiO2nanoparticles: anatase, brukite and rutile. Nanotechnology 2008, 19: 145605–145615. · DOI · Paper page
  33. Frindell KL, Bartl MH, Popitsch A, Stucky GD: Sensitized luminescence of trivalent europium by three-dimensionally arranged anatase nanocrystals in mesostructured titania thin films. Angew Chem Int Ed 2002, 41: 959–962. · doi:10.1002/1521-3773(20020315)41:6<959::aid-anie959>3.0.co;2-m
  34. Lei Y, Zhang LD: Fabrication, characterization and photoluminescence properties of highly ordered TiO2nanowire arrays. J Mater Res 2001, 16: 1138–1144. · doi:10.1557/jmr.2001.0157
  35. Saraf LV, Patil SI, Ogale SB, Sainkar SR, Kshirsager ST: Synthesis of nanophase TiO2by ion beam sputtering and cold condensation technique. Int J Mod Phys B 1998, 12: 2635–2647. · doi:10.1142/s0217979298001538
  36. Serpone N, Lawless D, Khairutdinov R: Size effects on the photophysical properties of colloidal anatase TiO2particles: size quantization versus direct transitions in this indirect semiconductor. J Phys Chem 1995, 99: 16646–16654. · DOI
  37. Liu Y, Claus RO: Blue light emitting nanosized TiO2colloids. J Am Chem Soc 1997, 119: 5273–5274. · DOI
  38. Zhang WF, Zhang MS, Yin Z: Microstructures and visible photoluminescence of TiO2nanocrystals. Phys Stat Sol 2000, 179: 319–327. · doi:10.1002/1521-396x(200006)179:2<319::aid-pssa319>3.0.co;2-h
  39. Ningthoujam RS, Sudarsan V, Godbole SV, Kienle L, Kulshreshtha SK, Tyagi AK: SnO2:Eu3+nanoparticles dispersed in TiO2matrix: improved energy transfer between semiconductor host and Eu3+ions for the low temperature synthesized samples. Appl Phys Lett 2007, 90: 173113–17115. · doi:10.1063/1.2731433
  40. Li L, Tsung CK, Yang Z, Stucky GD, Sun LD, Wang JF, Yan CH: Rare-earth-doped nanocrystalline titania microspheres via energy transfer. Adv Mater 2008, 20: 903–908. · doi:10.1002/adma.200701507
  41. Frindell KL, Bartl MH, Robinson MR, Bazan GC, Popitsch A, Stucky GD: Visible and near IR luminescence via energy transfer in rare earth doped mesoporous titania thin films with nanocrystalline walls. J Solid State Chem 2003, 172: 81–88. · DOI
  42. Alejandre E, Torres M, Hipolito M, Frutis M, Flores G, Mendoza J, Falcony C: Structural and luminescent properties of europium doped TiO2thick films synthesized by the ultrasonic spray pyrolysis technique. J Phys D: Appl Phys 2009, 42: 095102–095109. · DOI

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Metadata

Authors
Pal, M., Pal, U., Jiménez, J. M. G. Y., & Pérez-Rodríguez, F.
Venue
Nanoscale Research Letters
Publisher
Springer Science and Business Media LLC
Published
2012-01-03
Volume
7
Issue
1
Pages
1-1
ISSN
1556-276X (ISSN-L)
DOI
10.1186/1556-276x-7-1
OpenAlex
W2165685541
Cited by
2,620
References
0
FWCI
117.86
Type
journal article
Language
en
Open access
gold
Licence
creativecommons.org/licenses/by/2.0 (tdm)

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CoChat. (2026). Citation check: Effects of crystallization and dopant concentration on the emission behavior of TiO2:Eu nanophosphors. https://app.cochat.ai/papers/10.1186/1556-276x-7-1
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Pal, M., Pal, U., Jiménez, J. M. G. Y., & Pérez-Rodríguez, F. (2012). Effects of crystallization and dopant concentration on the emission behavior of TiO2:Eu nanophosphors. Nanoscale Research Letters. https://doi.org/10.1186/1556-276x-7-1

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