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Journal articles on the topic 'Y2O3:Eu Phosphor'

Author: Grafiati

Published: 4 June 2021

Last updated: 13 February 2022

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1

Bakhmetyev, Vadim V., Lev A. Lebedev, Anna B. Vlasenko, et al. "Luminescent Materials on the Basis of Yttrium Oxide and Yttrium Aluminum Garnet Used for Photodynamic Therapy." Key Engineering Materials 670 (October 2015): 232–38. http://dx.doi.org/10.4028/www.scientific.net/kem.670.232.

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Finely-dispersed phosphors of Y2O3:Eu and Y3Al5O12:Eu have been synthesized with the help of Pechini method and the method of self-propagating high-temperature synthesis (SHS). During the synthesis of phosphors on the basis of Y2O3 carried out with Pechini method the size of crystallites increases with the enlargement of concentration of yttrium, but it decreases when the method of SHS is applied. The structure of phosphors on the basis of Y3Al5O12 (YAG) is strongly amorphized. This fact agrees with the data of XRD and with the prevalence of the band with λmax = 613 nm in the spectra of this p

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2

Rosa, José, Mikko J. Heikkilä, Mika Sirkiä, and Saoussen Merdes. "Red Y2O3:Eu-Based Electroluminescent Device Prepared by Atomic Layer Deposition for Transparent Display Applications." Materials 14, no. 6 (2021): 1505. http://dx.doi.org/10.3390/ma14061505.

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Y2O3:Eu is a promising red-emitting phosphor owing to its high luminance efficiency, chemical stability, and non-toxicity. Although Y2O3:Eu thin films can be prepared by various deposition methods, most of them require high processing temperatures in order to obtain a crystalline structure. In this work, we report on the fabrication of red Y2O3:Eu thin film phosphors and multilayer structure Y2O3:Eu-based electroluminescent devices by atomic layer deposition at 300 °C. The structural and optical properties of the phosphor films were investigated using X-ray diffraction and photoluminescence me

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3

Ntwaeaborwa, O. M., K. T. Hillie, and H. C. Swart. "Degradation of Y2O3:Eu phosphor powders." physica status solidi (c) 1, no. 9 (2004): 2366–71. http://dx.doi.org/10.1002/pssc.200404813.

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4

Sano, Hiroyuki, Seiichiro Harada, Mikio Shimizu, and Makoto Kuwabara. "Synthesis of Nano-Sized Oxide Phosphor Particles Using an Ion-Exchange Polymer/Water/Oil Emulsion Method." Key Engineering Materials 421-422 (December 2009): 494–98. http://dx.doi.org/10.4028/www.scientific.net/kem.421-422.494.

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We synthesized nano-sized Eu-doped Y2O3 (Y2O3:Eu) phosphor powder by an ion-exchange po-lymer/water/oil (W/O) emulsion method using carboxymethyl cellulose (CMC) as the ion-exchange polymer, in which the CMC-(Y, Eu) gel formed was calcined at 800°C in air to convert into Y2O3:Eu particles. The obtained phosphor powder consists of unagglomerated particles with sizes in the range of 30-80 nm and exhibits strong red emission at 612 nm. This CMC/W/O method for producing nano-sized oxide powder has significant advantages over conventional solid-phase and chemical solution-based methods because this

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5

Yoo, Jeong Gon, Duk Hyun Park, Namsoo Shin, Ji Sik Kim, and Kee Sun Sohn. "Extraction Efficiency in Pulsed Laser Deposited Y₂O₃:Eu³⁺ Thin Film Phosphors on Corrugated Substrates." Materials Science Forum 475-479 (January 2005): 1205–8. http://dx.doi.org/10.4028/www.scientific.net/msf.475-479.1205.

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The luminance level of thin film Y2O3:Eu3+ phosphors deposited by a pulsed laser deposition (PLD) technique are not acceptable for field emission display (FED) because of so-called wave guiding effect. Corrugated glass plates were employed as a substrate in order to relieve the wave guiding effect and in turn improve light extraction efficiency of Y2O3:Eu3+ thin film phosphors. Integrated photoluminescent efficiency, film surface roughness and crystallinity were monitored as function of the pitch of corrugation. The integrated photoluminescence efficiency of Y2O3:Eu3+ thin film phosphor deposi

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6

Xie, Zhi, Wang Zhao, Wei-Wei Zhou, and Fu-Gui Yang. "Synthesis and luminescence properties of new red phosphor YBiW2O9:Eu3+." Functional Materials Letters 10, no. 05 (2017): 1750066. http://dx.doi.org/10.1142/s1793604717500667.

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A new series of YBiW2O9:Eu[Formula: see text] phosphors were successfully synthesized by the solid-state reaction method for the first time. Pure phase formation of YBiW2O9:Eu[Formula: see text] was confirmed by X-ray powder diffraction. It is found that the 7F[Formula: see text]L6 transition results in the strongest near-ultraviolet excitation centered at 395 nm and the phosphors show strong electric-dipole (ED) transitions (5D[Formula: see text]F[Formula: see text] with red emission peaking at 616[Formula: see text]nm. The optimal Eu[Formula: see text] doping concentration of 70[Formula: see

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7

Jiang, Y. D., Z. L. Wang, F. Zhang, H. G. Paris, and C. J. Summers. "Synthesis, Properties and Characterization of Red Phosphor Particles of Y2O3:Eu." Microscopy and Microanalysis 3, S2 (1997): 725–26. http://dx.doi.org/10.1017/s1431927600010515.

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High resolution and high efficiency planar display, one of the national priorities for advanced technologies and commercial applications, require highly efficient phosphor materials with crystalline monodispersive fine particles [1,2]. Europium oxide activated yttrium oxide (Y2O3:Eu) is a potential red-emission phosphor powders to be used in high efficiency electroluminescence and field emission displays. In this paper, a novel hydrolysis technique is employed to prepare phosphor particles of Y2O3: Eu, and the structure characterization is reported.In this synthesis technique, urea reacts with

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8

Xiaoshan, Hu, Huang Xiaowei, Hu Yunsheng, and Zhuang Weidong. "Research on Y2O3:Eu Phosphor Coated with In2O3." Journal of Rare Earths 25, no. 1 (2007): 11–14. http://dx.doi.org/10.1016/s1002-0721(07)60035-0.

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9

Chen, Dianying, Eric H. Jordan, Michael W. Renfro, and Maurice Gell. "Solution Precursor Plasma Spray Eu: Y2O3 Phosphor Coating." International Journal of Applied Ceramic Technology 9, no. 3 (2012): 636–41. http://dx.doi.org/10.1111/j.1744-7402.2011.02681.x.

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10

Vlasenko, Anna B., Vadim V. Bakhmetyev, and Sergey V. Mjakin. "Synthesis of Y₂O₃: Eu Luminescent Phosphor with Increased Dispersion for Use in Medical Purposes." Materials Science Forum 1040 (July 27, 2021): 61–67. http://dx.doi.org/10.4028/www.scientific.net/msf.1040.61.

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Photodynamic therapy (PDT) is a promising modern method for treatment of oncological, bacterial, fungal and viral diseases. However, its application is limited to diseases with superficial localization since the body tissues are not transparent for visible light. To address this problem and extend PDT application to abdominal diseases, an enhanced method of X-ray photodynamic therapy (XRPDT) is suggested, involving X-ray radiation easily penetrating the body tissues. The implementation of this approach requires the development of a pharmacological drug including a photosensitizer stimulated by

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11

Lv, Meng, Guo Chao Li, Jie Dai, and Xia Li. "A Simple Solvothermal Synthesis of Spherical Y₂O₃:Eu³⁺." Advanced Materials Research 1088 (February 2015): 58–63. http://dx.doi.org/10.4028/www.scientific.net/amr.1088.58.

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In this study, Y2O3 microspheres have been selectively prepared by solvothermal method, without using any template and catalyst carrier. Based on the systematic analysis of the samples, we have discussed the effects of the thermal treatment temperature on the structure of the Y2O3 microspheres. Besides, we have also investigated the effect of microstructure on the photoluminescence properties of the phosphor, and the impact of rare earth ion doping concentration on the emission intensity of the phosphor. Powder X-ray diffraction analysis of the powders confirmed the formation of cubic Y2O3. Sc

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12

Choy, K. L., J. P. Feist, A. L. Heyes, and B. Su. "Eu-doped Y2O3 phosphor films produced by electrostatic-assisted chemical vapor deposition." Journal of Materials Research 14, no. 7 (1999): 3111–14. http://dx.doi.org/10.1557/jmr.1999.0417.

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Europium-doped yttrium oxide (Y2O3:Eu) thermographic phosphor films were deposited on Ni-alloy substrates using a novel and cost-effective electrostatic-assisted chemical vapor deposition (EACVD) technique. The thermoluminescence properties were studied under irradiation by an ultraviolet laser. It was found that crystallized Y2O3: Eu films could be deposited at a temperature as low as 550 °C. Annealing of the as-deposited films at higher temperatures (>1000 °C) improved the luminescence properties due to further crystallization processes. The correlation of the lifetime decay and temperatu

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13

Maniquiz, Meriel Chua, Tae-Won Kang, Jin-Han Ahn, and Kyeong-Youl Jung. "Luminescent Properties of Y2O3:Eu Red Phosphor Particles Prepared by Microwave Synthesis." Journal of Korean Powder Metallurgy Institute 16, no. 3 (2009): 203–8. http://dx.doi.org/10.4150/kpmi.2009.16.3.203.

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14

Zachau, M., and A. Konrad. "Nanomaterials for Lighting." Solid State Phenomena 99-100 (July 2004): 13–18. http://dx.doi.org/10.4028/www.scientific.net/ssp.99-100.13.

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Luminescent and non-luminescent nano materials are used today in a variety of lighting applications. One example is the thin layer of densely packed nano alumina between glass and phosphor in fluorescent lamps that serves to increase the efficiency, to improve the maintenance and to reduce the mercury consumption of the lamps. Further, non-luminescent nano materials may be used to form a thin conformal coating around phosphor particles that protects the phosphor particles and improves the efficiency and maintenance of fluorescent lamps. Luminescent nano materials have been the subject of exten

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15

Lee, Chang Hee, Kyung Youl Jung, Joong Gill Choi, and Yun Chan Kang. "Nano-sized Y2O3:Eu phosphor particles prepared by spray pyrolysis." Materials Science and Engineering: B 116, no. 1 (2005): 59–63. http://dx.doi.org/10.1016/j.mseb.2004.09.016.

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16

Zhang, Junying, Zilong Tang, Zhongtai Zhang, Wangyang Fu, Jin Wang, and Yuanhua Lin. "Synthesis of nanometer Y2O3:Eu phosphor and its luminescence property." Materials Science and Engineering: A 334, no. 1-2 (2002): 246–49. http://dx.doi.org/10.1016/s0921-5093(01)01812-3.

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17

Hillie, K. T., O. M. Ntweaeborwa, and H. C. Swart. "Degradation of pulse laser deposited Y2O3:Eu thin film phosphor." physica status solidi (c) 1, no. 9 (2004): 2360–65. http://dx.doi.org/10.1002/pssc.200404812.

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18

Paulraj, Arunkumar, Prabu Natarajan, Kottaisamy Munnisamy, et al. "Photoluminescence Efficiencies of Nanocrystalline versus Bulk Y2O3: Eu Phosphor-Revisited." Journal of the American Ceramic Society 94, no. 5 (2010): 1627–33. http://dx.doi.org/10.1111/j.1551-2916.2010.04246.x.

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19

Auerbach, Romy, Katrin Bokelmann, Stefan Ratering, Rudolf Stauber, Sylvia Schnell, and Jörg Zimmermann. "Recycling of Florescent Phosphor Powder Y₂O₃:Eu by Leaching Experiments." Solid State Phenomena 262 (August 2017): 596–600. http://dx.doi.org/10.4028/www.scientific.net/ssp.262.596.

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Due to the advancing development of new technologies and consumer goods the future demand for raw materials will rise significantly. The finite primary raw materials will not be able to meet the demand quickly enough or the prices for the extraction will rise enormously. In consequence, a recycling of process waste and end of life products will be in future an essential step in order to meet the demand. Y2O3:Eu fluorescent phosphor was identified as the main composition in phosphor waste fractions and was chemical leached and bioleached with A. ferrooxidans. A selective leaching towards Y in b

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20

Vlasenko, Anna B., and Vadim V. Bakhmetyev. "Synthesis of Y₂O₃: Eu Nanosized Phosphor Using Hydrothermal Technique and Rapid Thermal Annealing (RTA)." Key Engineering Materials 854 (July 2020): 209–15. http://dx.doi.org/10.4028/www.scientific.net/kem.854.209.

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The application of special nanomaterials is promising for the development of new methods for the diagnostics and treatment of cancer. Photodynamic therapy (PDT) is a well-known and recognized method of cancer treatment. This type of therapy is less carcinogenic and mutagenic compared to radiation and chemotherapy, since the applied photosensitizers do not bind to DNA of the cells. However, currently this technique is only applicable to skin cancer, while its extension to the treatment of abdominal tumors requires the creation of pharmacological drugs for PDT, which along with a photosensitizer

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21

Marinkovic, Katarina, Luz Gomez, Maria Rabanal, Lidija Mancic, and Olivera Milosevic. "Aerosol route in processing of nanostructured phosphor materials." Processing and Application of Ceramics 4, no. 3 (2010): 135–45. http://dx.doi.org/10.2298/pac1003135m.

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Among the methods currently used for nanophase processing, synthesis through dispersion phase (aerosol) enables generation of ultrafine powders with controlled stoichiometry. It represents a 'bottom-up' chemical approach that provides control over a variety of important parameters enabling the formation of either amorphous, nanocrystalline or metastable phases. Particularly, the opportunities of the hot wall aerosol synthesis, i.e. spray pyrolysis, for the generation of ultrafine phosphor particles with uniformly distributed components, nano-clustered inner structure and luminescence propertie

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22

NAKAMURA, Atsushi, Nobuyoshi NAMBU, Kenichirou KAWAHARA, Shigeo OHSHIO, and Hidetoshi SAITOH. "Powder of Y2O3:Eu Red Phosphor Synthesized from Metal-EDTA Complexes." Journal of the Ceramic Society of Japan 111, no. 1290 (2003): 142–46. http://dx.doi.org/10.2109/jcersj.111.142.

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23

Igarashi, T., M. Ihara, T. Kusunoki, K. Ohno, T. Isobe, and M. Senna. "Relationship between optical properties and crystallinity of nanometer Y2O3:Eu phosphor." Applied Physics Letters 76, no. 12 (2000): 1549–51. http://dx.doi.org/10.1063/1.126092.

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24

Harazono, Toshie, Etsuzo Yokota, Hiroshi Uchida, and Tokuko Watanabe. "Luminous Characteristics and89Y-Static NMR in Red Phosphor, Eu-Doped Y2O3." Bulletin of the Chemical Society of Japan 71, no. 4 (1998): 825–29. http://dx.doi.org/10.1246/bcsj.71.825.

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25

Kang, Yun Chan, Seung Bin Park, I. Wuled Lenggoro, and Kikuo Okuyama. "Preparation of nonaggregated Y2O3 : Eu phosphor particles by spray pyrolysis method." Journal of Materials Research 14, no. 6 (1999): 2611–15. http://dx.doi.org/10.1557/jmr.1999.0349.

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Y2O3 : Eu phosphor particles were directly prepared by a spray pyrolysis method. Photoluminescence, morphology, and crystallinity of the as-prepared particles were investigated. The as-prepared particles above 600 °C had good crystallinity, and the crystallinity increased with increasing reactor temperatures. The particles had spherical morphology and were nonaggregated. The mean size of the particles increased from 0.34 to 1.2 µm when the solution concentration was increased from 0.03 to 1 M. The as-prepared particles had good red emission without annealing at high temperatures when excited w

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26

Devi, P. Sujatha, Joshua Margolis, John B. Parise, et al. "Single-step deposition of Eu-doped Y2O3 phosphor coatings through a precursor plasma spraying technique." Journal of Materials Research 17, no. 11 (2002): 2771–74. http://dx.doi.org/10.1557/jmr.2002.0401.

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Europium-doped yttrium oxide (Y2O3:Eu3+) luminescent coatings were produced in a single step directly from a solution precursor using a radio frequency induction plasma spray technique. Crystalline and luminescent coatings were grown on Si(100) and steel substrates by this process. X-ray diffraction analyses on these coatings confirmed that polycrystalline cubic Y2O3 phase formed in situ with no impurity phases. The observed photoluminescence from these coatings is in all probability due to the highly crystalline nature of the coating combined with submicron spherical morphology of the grains.

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27

MOHAMMADI, ALI, YADOLAH GANJKHANLOU, MAHMOOD KAZEMZAD, ABDOLMAJID BAYANDORI MOGHADDAM, FEREIDOUN ALIKHANI HESSARI, and RASSOUL DINARVAND. "EFFECT OF STRONTIUM DOPING ON NANOSTRUCTURE AND CHROMATICITY OF Y2O3:Eu COMPOUNDS." International Journal of Modern Physics B 25, no. 22 (2011): 2949–56. http://dx.doi.org/10.1142/s0217979211101545.

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In this work, various nano-sized samples of Y 2 O 3, Y 2 O 3 :Eu and Y 2 O 3 :Eu , Sr were prepared by urea solution combustion method. Then the resultant nanopowders were investigated by means of X-ray diffraction (XRD), high resolution transmission electron microscopy (HRTEM), Fourier transform infrared spectroscopy (FTIR) and photo-luminescence emission spectra. Furthermore, the CIE color coordinate of samples were calculated from photoluminescence emission spectra. Results showed that by doping of strontium, the photoluminescence intensity and chromaticity of Y 2 O 3: Eu phosphor was enhan

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28

Lenggoro, I. Wuled, Yoshifumi Itoh, Kikuo Okuyama, and Tae Oh Kim. "Nanoparticles of a doped oxide phosphor prepared by direct-spray pyrolysis." Journal of Materials Research 19, no. 12 (2004): 3534–39. http://dx.doi.org/10.1557/jmr.2004.0457.

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A gas-phase synthesis route based on spray pyrolysis with a residence/heating time of less than 0.1 s was designed to directly prepare Eu-doped Y2O3 phosphor nanoparticles. The average size of the phosphor particles decreased from the submicron size to around 10 nm when the concentration of the starting solution was increased. By increasing the operating temperature, from 1500 to 1700 °C, the submicron-particles were converted into a nano-particle phosphor, and their photoluminescence intensities at 611 nm (254-nm excitation) were greatly improved. This synthesis procedure has considerable pot

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29

Kaps, Harald, Mohammad Lutful Arefin, Ulrich Herr, and Heiko Paul. "Concentration Dependent Fluorescence Lifetime in Nanocrystalline Y₂O₃:Eu Phosphors." Solid State Phenomena 128 (October 2007): 165–71. http://dx.doi.org/10.4028/www.scientific.net/ssp.128.165.

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Nanocrystalline (Y1-xEux)2O3 powder was synthesized via a chemical vapour reaction. Xray diffraction revealed the structure of cubic yttria with crystallite sizes of about 5 nm. The Eudopand concentrations x for the samples in the range from 0.003 up to 0.165 were determined by EDX-spectra. The luminescence of the nanopowders was investigated by continuous and timeresolved UV-fluorescence spectroscopy and compared to a microcrystalline Y2O3:Eu phosphor as a reference. The emission spectra show an increasing intensity for higher doping concentrations. However, compared to the microcrystalline m

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30

Nakamura, Atsushi, Nobuyoshi Nambu, and Hidetoshi Saitoh. "Effect of boron concentration in Y2O3:(Eu,B) phosphor on luminescence property." Science and Technology of Advanced Materials 6, no. 2 (2005): 210–14. http://dx.doi.org/10.1016/j.stam.2004.11.016.

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31

Kang, Sang Sik, Ji Koon Park, Jang Yong Choi, et al. "Synthesis and Characterization of Y2O3:Eu Phosphor Derived by Solution-Combustion Method." Japanese Journal of Applied Physics 43, No. 12A (2004): L1507—L1509. http://dx.doi.org/10.1143/jjap.43.l1507.

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32

Park, S. B., Y. C. Kang, I. W. Lenggoro, and K. Okuyama. "Preparation of Y2O3:Eu phosphor without post-treatment by gas phase reaction." Journal of Aerosol Science 29 (September 1998): S909—S910. http://dx.doi.org/10.1016/s0021-8502(98)90637-1.

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33

Graeve, Olivia A. "Comment on “Photoluminescence Efficiencies of Nanocrystalline Versus Bulk Y2O3:Eu Phosphor-Revisited”." Journal of the American Ceramic Society 94, no. 8 (2011): 2694–95. http://dx.doi.org/10.1111/j.1551-2916.2011.04482.x.

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34

Nayak, A., R. Sahoo, and R. Debnath. "Hydration-induced coupling of the excitonic state of Y2O3 with its phonon: Negative effect on the luminescence efficiency of Y2O3:Eu+3 nanophosphor." Journal of Materials Research 22, no. 1 (2007): 35–39. http://dx.doi.org/10.1557/jmr.2007.0027.

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Luminescence properties of a series of samples of Y2O3:Eu+3 red phosphor of particle sizes ranging from 50 to 300 nm were investigated as a function of time to decipher the long-standing mystery of the effect of reduction of particle size on the luminescence efficiency of the phosphor. The samples were found to lose luminescence efficiency and suffer a change in the excitation profile with time. Infrared studies showed that although the samples at their freshly prepared stage were almost free from contaminated water, on aging in air at room temperature, they absorbed the latter. The phenomenon

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35

Dupont, David, and Koen Binnemans. "Rare-earth recycling using a functionalized ionic liquid for the selective dissolution and revalorization of Y2O3:Eu3+ from lamp phosphor waste." Green Chemistry 17, no. 2 (2015): 856–68. http://dx.doi.org/10.1039/c4gc02107j.

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A recycling process for lamp phosphor waste has been developed based on the selective dissolution and revalorization of the valuable red lamp phosphor Y<sub>2</sub>O<sub>3</sub>:Eu<sup>3+</sup> in the functionalized ionic liquid [Hbet][Tf<sub>2</sub>N].

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36

Cho, Jung Sang, Kyeong Youl Jung, Mun Young Son, and Yun Chan Kang. "Large-scale production of spherical Y2O3:Eu3+ phosphor powders with narrow size distribution using a two-step spray drying method." RSC Adv. 4, no. 108 (2014): 62965–70. http://dx.doi.org/10.1039/c4ra09225b.

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Dense spherical Y<sub>2</sub>O<sub>3</sub>:Eu<sup>3+</sup> phosphor particles with a narrow size distribution were successfully prepared by using a two-step spray drying method. This method is easily scalable and can therefore be applied to the mass production of phosphor particles with high photoluminescence.

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37

NISHISU, Yoshihiro, and Mikio KOBAYASHI. "Control of the Preparation Process of Y2O3:Eu Phosphor Synthesized from Homogeneous Solution." RESOURCES PROCESSING 47, no. 3 (2000): 126–31. http://dx.doi.org/10.4144/rpsj1986.47.126.

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38

Jiang, Yong Dong, Zhong Lin Wang, Fuli Zhang, Henry G. Paris, and Christopher J. Summers. "Synthesis and characterization of Y2O3: Eu3+ powder phosphor by a hydrolysis technique." Journal of Materials Research 13, no. 10 (1998): 2950–55. http://dx.doi.org/10.1557/jmr.1998.0403.

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A forced hydrolysis technique is used for preparing Y2O3: Eu3+ powders at low processing temperatures. The technique uses yttrium oxide, europium oxide, and nitric acid and urea, and has the potential for large-scale production for industrial applications. Several experimental conditions have been examined to optimize the luminescence efficiency. The best result was found to be at 2 mol% Eu doping and a 2 h firing of 1400 °C. Microstructural information provided by x-ray diffraction, scanning electron microscopy (SEM), and transmission electron microscopy (TEM) have been applied to interpret t

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39

Ishak, Izdihar, and Alias Daud. "Rare Earth Doped Y₂O₃:RE³⁺ (RE= Eu, Tm and Tb) Powder Phosphors Prepared by Microwave Heating Technique." Materials Science Forum 517 (June 2006): 227–31. http://dx.doi.org/10.4028/www.scientific.net/msf.517.227.

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A simple microwave heating system was designed for firing phosphor samples. An 800W magnetron operating at 2.45 GHz was used. The system is capable of reaching 1200oC in less than three minutes with the help of SiC succeptor. The synthesis technique prior to the microwave heating is described. The results indicate that the samples start to crystallize after 5 minutes. The X-Ray diffraction (XRD) data indicates that the sample is polycrystalline and acquires the host structure. The Photoluminescence (PL) and Photoluminescence Excitation (PLE) spectra for the powder phosphor prepared show simila

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40

Concas, Giorgio, Giorgio Spano, Marco Bettinelli, and Adolfo Speghini. "Distribution of Eu3+ Dopant Ions in C3i and C2 Sites of the Nanocrystalline Sc2O3:Eu Phosphor." Zeitschrift für Naturforschung A 63, no. 3-4 (2008): 210–16. http://dx.doi.org/10.1515/zna-2008-3-416.

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The actual occupancy of the two available cation sites by luminescent Eu3+ ions, in the cubic bixbyite-type structure of nanocrystalline sesquioxides, has been investigated by 151Eu Mössbauer spectroscopy and magnetic susceptibility measurements. It was found that one fourth of the europium ions is in the more symmetric site C3i and three fourths in the less symmetric site C2; the distribution is random. In the series of the Eu-doped sesquioxides Sc2O3, Lu2O3, Y2O3 and Eu2O3, the covalency of the Eu-O bond and the Eu site distortion increase with the difference in ionic radii between europium

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41

Lee, Hyun Jin, Se Min Ban, Kyeong-Youl Jung, Byung-Ki Choi, Kwang-Jung Kang, and Dae Sung Kim. "Nano Dispersion of Aggregated Y2O3:Eu Red Phosphor and Photoluminescent Properties of Its Nanosol." Korean Journal of Materials Research 27, no. 2 (2017): 100–106. http://dx.doi.org/10.3740/mrsk.2017.27.2.100.

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42

Sychov, Maxim, Yoichiro Nakanishi, Hiroko Kominami, Yoshinori Hatanaka, and Kazuhiko Hara. "Optimization of Low-Voltage Cathodoluminescence of Electron-Beam-Evaporated Y2O3:Eu Thin Film Phosphor." Japanese Journal of Applied Physics 47, no. 9 (2008): 7206–10. http://dx.doi.org/10.1143/jjap.47.7206.

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Kang, Yun Chan, Dae Jong Seo, Seung Bin Park, and Hee Dong Park. "Morphological and Optical Characteristics of Y2O3:Eu Phosphor Particles Prepared by Flame Spray Pyrolysis." Japanese Journal of Applied Physics 40, Part 1, No. 6A (2001): 4083–86. http://dx.doi.org/10.1143/jjap.40.4083.

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Sohn, Jong Rak, Yun Chan Kang, and Hee Dong Park. "Morphological Control of Y2O3:Eu Phosphor Particles by Adding Polymeric Precursors in Spray Pyrolysis." Japanese Journal of Applied Physics 41, Part 1, No. 5A (2002): 3006–9. http://dx.doi.org/10.1143/jjap.41.3006.

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Kim, In-Gyu, Sangmoon Park, Seong-Gu Kang, and Jung-Chul Park. "Synthesis of Y2O3:(Li,Eu) films using phosphor powders coated with SiO2 nano particles." Journal of Luminescence 130, no. 8 (2010): 1521–24. http://dx.doi.org/10.1016/j.jlumin.2010.03.023.

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Muresan, Laura, Elisabeth Jeanne Popovici, Florica Imre-Lucaci, Rodica Grecu, and Emil Indrea. "Studies on Y2O3:Eu phosphor with different particle size prepared by wet chemical method." Journal of Alloys and Compounds 483, no. 1-2 (2009): 346–49. http://dx.doi.org/10.1016/j.jallcom.2008.08.087.

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Hiroyuki, Sano, and Kuwabara Makoto. "Synthesis of Nanocrystalline Y2O3:Eu Phosphor by a Metal-Ionic CrossLinker-Containing Polymeric Precursor Method." Journal of the American Ceramic Society 91, no. 10 (2008): 3437–39. http://dx.doi.org/10.1111/j.1551-2916.2008.02621.x.

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Bolstad, David B., and Anthony L. Diaz. "Synthesis and Characterization of Nanocrystalline Y2O3: Eu 3+ Phosphor. An Upper-Division Inorganic Chemistry Laboratory." Journal of Chemical Education 79, no. 9 (2002): 1101. http://dx.doi.org/10.1021/ed079p1101.

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Kang, Yun Chan, Hyun Sook Roh, Seung Bin Park, and Hee Dong Park. "Use of LiCl flux in the preparation of Y2O3:Eu phosphor particles by spray pyrolysis." Journal of the European Ceramic Society 22, no. 9-10 (2002): 1661–65. http://dx.doi.org/10.1016/s0955-2219(01)00462-9.

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Paulraj, Arunkumar, Prabu Natarajan, Kottaisamy Munnisamy, et al. "Reply to the Comment on “Photoluminescence Efficiencies of Nanocrystalline Versus Bulk Y2O3:Eu Phosphor-Revisited”." Journal of the American Ceramic Society 94, no. 8 (2011): 2696–97. http://dx.doi.org/10.1111/j.1551-2916.2011.04535.x.

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