Abstract

Upconversion (UC) properties of Y2O3:Ho3+/Yb3+ spherical particles synthesized by spray pyrolysis were investigated by changing the dopant concentration and calcination temperature. Citric acid (CA), ethylene glycol (EG) and N, N-dimethylformamide (DMF) were used to control the microstructure of Y2O3:Ho3+/Yb3+ particles. In terms of achieving the highest UC green emission intensity, the optimal concentrations of Ho3+ and Yb3+ were found to be 0.3% and 3.0%, respectively. In addition, the UC intensity of Y2O3:Ho3+/Yb3+ showed a linear relationship with the crystallite size. The use of organic additives allows Y2O3:Ho3+/Yb3+ particles to have a spherical and dense structure, resulting in significantly reducing the surface area while maintaining high crystallinity. As a result, the UC emission intensity of Y2O3:Ho3+/Yb3+ particles having a dense structure showed the UC emission intensity about 3.8 times higher than that of hollow particles prepared without organic additives. From those results, when Y2O3:Ho3+/Yb3+ particles are prepared by the spray pyrolysis process, the use of the CA/EG/DMF mixtures as organic additives has been suggested as an effective way to substantially increase the UC emission intensity.

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Other (28)

J. Chen and J. X. Zhao2012Upconversion nanomaterials: synthesis, mechanism, and application in sensingSensor1224142435

B. Iyisan, R. Thiramanas, N. Nazarova, Y. Avlasevich, V. Mailänder, S. Baluschev, and K. Landfester2020Temperature sensing in cells using polymeric upconversion nanoparticlesBiomacromolecules2144694478

W. Bi, Y. Wu, C. Chen, D. Zhou, Z. Song, D. Li, G. Chen, Q. Dai, Y. Zhu, and H. Song2020Dye sensitization and local surface plasmon resonance-enhanced upconversion luminescence for efficient perovskite solar cellsACS Appl. Mater. Interfaces122473724746

W. Yao, X. Chen, Q. Tian, C. Luo, X. Zhang, H. Peng, and W. Wu2020Directly printing of upconversion fluorescence-responsive elastomers for self-healable optical applicationChem. Eng. J.384123375

K. Y. Jung2020Aerosol synthesis of TiO2:Er3+/Yb3+ submicron-sized spherical particles and upconversion optimization for application as anti-counterfeiting materialsRSC Adv.101632316329

N. Q. Wang, X. Zhao, C. M. Li, E. Y. B. Pun, and H. Lin2010Upconversion and color tunability in Tm3+/Ho3+/Yb3+ doped low phonon energy bismuth tellurite glassesJ. Lumin.13010441047

H. Wu, Z. Hao, L. Zhang, X. Zhang, Y. Xiao, G.-H. Pan, H. Wu, Y. Luo, H. Zhao, and J. Zhang2018Phonon energy dependent energy transfer upconversion for the red emission in the Er3+/Yb3+ systemJ. Phys. Chem. C12296119618

M. Azam and V. K. Rai2017Ho3+-Yb3+ codoped tellurite based glasses in visible lasers and optical devices: Judd-Ofelt analysis and frequency upconversionSolid State Sci.66715

D. T. Klier and M. U. Kumke2015Analysing the effect of the crystal structure on upconversion luminescence in Yb3+, Er3+-co-doped NaYF4 nanomaterialsJ. Mater. Chem. C31122811238

J. Wang, C. Cheng, and G. De2019Crystallinity effects and phase transition on upconversion emission of monodisperse NaGdF4:Yb, Er nanocrystalsOpt. Mater.91419424

L. Xing, W. Yang, D. Ma, and R. Wang2015Effect of crystallinity on the optical thermometry sensitivity of Tm3+/Yb3+ codoped LiNbO3 crystalSens. Actuators B Chem.221458462

C. Zhao, X. Kong, X. Liu, L. Tu, F. Wu, Y. Zhang, K. Liu, Q. Zeng, and H. Zhang2013Li+ ion doping: an approach for improving the crystallinity and upconversion emissions of NaYF4:Yb3+, Tm3+ nanoparticlesNanoscale580848089

K. Y. Jung, Y. C. Kang, and Y.-K. Park2008DMF effect on the morphology and the luminescence properties of Y2O3:Eu3+ red phosphor prepared by spray pyrolysisJ. Ind. Eng. Chem.14224229

K. Y. Jung, C. H. Lee, and Y. C. Kang2005Effect of surface area and crystallite size on luminescent intensity of Y2O3:Eu phosphor prepared by spray pyrolysisMater. Lett.5924512456

H. Li, X. Pu, J. Yin, X. Wang, S. Yao, H. M. Noh, and J. H. Jeong2016Effect of crystallite size and crystallinity on photoluminescence properties and energy transfer of Y6MoO12:EuJ. Am. Ceram. Soc.99954961

W. Zhou, Z. Sun, J. Luo, X. Zhang, Q. Pang, and L. Zhou2021Great emission enhancement of high-efficient broadband K3YSi2O7:Eu red phosphor via enhancing crystallinityJ. Alloys Compd.854157188

J. S. Cho, S. M. Lee, K. Y. Jung, and Y. C. Kang2014Large-scale production of fine-sized Zn2SiO4:Mn phosphor microspheres with a dense structure and good photoluminescence properties by a spray-drying processRSC Adv.44360643611

J. S. Cho, K. Y. Jung, and Y. C. Kang2015Two-step spray-drying synthesis of dense and highly luminescent YAG:Ce3+ phosphor powders with spherical shapeRSC Adv.583458350

J. Leng, Z. Wang, J. Wang, H.-H. Wu, G. Yan, X. Li, H. Guo, Y. Liu, Q. Zhang, and Z. Guo2019Advance in nanostructures fabricated via spray pyrolysis and their applications in energy storage and conversionChem. Soc. Rev.4830153072

T. K. Vo and J. S. Kim2020Facile synthesis of mesoporous Cr2O3 microspheres by spray pyrolysis and their photocatalytic activity: effect of surfactant and pyrolysis temperatureKorean J. Chem. Eng.37571575

B. H. Min and K. Y. Jung2017Synthesis and luminescence characteristics of fine-sized Ba3Si6O12N2:Eu green phosphor through spray pyrolysis using TEOS/Si3N4 mixed precursorsRSC Adv.74475944765

R. Raphael and E. I. Anila2021Investigation of photoluminescence emission from β-Ga2O3:Ce thin films deposited by spray pyrolysis techniqueJ. Alloys Compd.872159590

A. A. G. Santiago, R. L. Tranquilin, M. S. Li, E. Longo, F. V. Motta, and M. R. D. Bomio2021Effect of temperature on ultrasonic spray pyrolysis method in zinc tungstate: the relationship between structural and optical propertiesMater. Chem. Phys.258123991

K. Y. Jung, J. C. Lee, D. S. Kim, B.-K. Choi, and W.-J. Kang2017Co-doping effect of monovalent alkali metals on optical properties of CeO2:Eu nanophosphor prepared by spray pyrolysis and application for preparing pearlescent pigments with red emissionJ. Lumin.19213131321

Q. Wu, S. Lin, Z. Xie, L. Zhang, Y. Qian, Y. Wang, and H. Zhang2017Tunable upconversion luminescence of monodisperse Y2O3:Er3+/Yb3+/Tm3+ nanoparticlesAppl. Surf. Sci.424164169

A. Pandey, V. K. Rai, R. Dey, and K. Kumar2013Enriched green upconversion emission in combustion synthesized Y2O3:Ho3+-Yb3+ phosphorMater. Chem. Phys.139483488

A. Pandey and V. K. Rai2013Improved luminescence and temperature sensing performance of Ho3+-Yb3+-Zn2+:Y2O3 phosphorDalton Trans.421100511011

M. Sun, J. Liu, and L. Nie2020Effect of Zn2+ and Li+ ions doped on microstructure and upconversion luminescence of Y2O3:Er3+-Yb3+ thin filmJ. Alloys Compd.816152575

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