Effects of Y/Gd ratio and boron excess on vacuum ultraviolet characteristics and morphology of (Y,Gd)BO3:Eu phosphor particles prepared by spray pyrolysis

Hye Young Koo; Dae Soo Jung; Seung Kwon Hong; Yun Chan Kang; Kyeong Youl Jung

doi:10.1143/JJAP.46.3424

Effects of Y/Gd ratio and boron excess on vacuum ultraviolet characteristics and morphology of (Y,Gd)BO₃:Eu phosphor particles prepared by spray pyrolysis

Hye Young Koo, Dae Soo Jung, Seung Kwon Hong, Yun Chan Kang, Kyeong Youl Jung

Research output: Contribution to journal › Article › peer-review

3 Citations (Scopus)

Abstract

(Y_1-xGd_x)BO₃:Eu (0 ≤ x ≤ 1) phosphor particles were prepared by spray pyrolysis. The optimal amount of boric acid for the high photoluminescence intensity of there particles differed depending on the molar ratio of Y to Gd. With decreasing Y/Gd molar ratio, an increasing amount of excess boric acid was required. The difference in excess quantity of boric acid, which was demanded for the highest photoluminescence intensity according to the Y/Gd ratio, influenced the morphology and mean size of the (Y,Gd)BO₃:Eu phosphor particles. The (Y_1-xGd _x)BO₃:Eu (0 ≤ x ≤ 1) phosphor particles had a regular morphology. The mean sizes of the GdBO₃:Eu and YBO ₃:Eu phosphor particles were 1.4 and 1 μm, respectively. The high reactivity of boron and yttrium components produced YBO₃:Eu phosphor particles with high photoluminescence intensities by spray pyrolysis using a spray solution with a stoichiometric amount of boric acid.

Original language	English
Pages (from-to)	3424-3427
Number of pages	4
Journal	Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
Volume	46
Issue number	6 A
DOIs	https://doi.org/10.1143/JJAP.46.3424
Publication status	Published - 2007 Jun 6
Externally published	Yes

Keywords

Display
Phosphor
Photoluminescence
Spray pyrolysis

ASJC Scopus subject areas

Engineering(all)
Physics and Astronomy(all)

Access to Document

10.1143/JJAP.46.3424

Cite this

Koo, H. Y., Jung, D. S., Hong, S. K., Kang, Y. C., & Jung, K. Y. (2007). Effects of Y/Gd ratio and boron excess on vacuum ultraviolet characteristics and morphology of (Y,Gd)BO₃:Eu phosphor particles prepared by spray pyrolysis. Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers, 46(6 A), 3424-3427. https://doi.org/10.1143/JJAP.46.3424

Effects of Y/Gd ratio and boron excess on vacuum ultraviolet characteristics and morphology of (Y,Gd)BO₃:Eu phosphor particles prepared by spray pyrolysis. / Koo, Hye Young; Jung, Dae Soo; Hong, Seung Kwon et al.
In: Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers, Vol. 46, No. 6 A, 06.06.2007, p. 3424-3427.

Research output: Contribution to journal › Article › peer-review

Koo, HY, Jung, DS, Hong, SK, Kang, YC & Jung, KY 2007, 'Effects of Y/Gd ratio and boron excess on vacuum ultraviolet characteristics and morphology of (Y,Gd)BO₃:Eu phosphor particles prepared by spray pyrolysis', Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers, vol. 46, no. 6 A, pp. 3424-3427. https://doi.org/10.1143/JJAP.46.3424

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abstract = "(Y1-xGdx)BO3:Eu (0 ≤ x ≤ 1) phosphor particles were prepared by spray pyrolysis. The optimal amount of boric acid for the high photoluminescence intensity of there particles differed depending on the molar ratio of Y to Gd. With decreasing Y/Gd molar ratio, an increasing amount of excess boric acid was required. The difference in excess quantity of boric acid, which was demanded for the highest photoluminescence intensity according to the Y/Gd ratio, influenced the morphology and mean size of the (Y,Gd)BO3:Eu phosphor particles. The (Y1-xGd x)BO3:Eu (0 ≤ x ≤ 1) phosphor particles had a regular morphology. The mean sizes of the GdBO3:Eu and YBO 3:Eu phosphor particles were 1.4 and 1 μm, respectively. The high reactivity of boron and yttrium components produced YBO3:Eu phosphor particles with high photoluminescence intensities by spray pyrolysis using a spray solution with a stoichiometric amount of boric acid.",

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AB - (Y1-xGdx)BO3:Eu (0 ≤ x ≤ 1) phosphor particles were prepared by spray pyrolysis. The optimal amount of boric acid for the high photoluminescence intensity of there particles differed depending on the molar ratio of Y to Gd. With decreasing Y/Gd molar ratio, an increasing amount of excess boric acid was required. The difference in excess quantity of boric acid, which was demanded for the highest photoluminescence intensity according to the Y/Gd ratio, influenced the morphology and mean size of the (Y,Gd)BO3:Eu phosphor particles. The (Y1-xGd x)BO3:Eu (0 ≤ x ≤ 1) phosphor particles had a regular morphology. The mean sizes of the GdBO3:Eu and YBO 3:Eu phosphor particles were 1.4 and 1 μm, respectively. The high reactivity of boron and yttrium components produced YBO3:Eu phosphor particles with high photoluminescence intensities by spray pyrolysis using a spray solution with a stoichiometric amount of boric acid.

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