Effect of boric acid flux and drying control chemical additive on the characteristics of y2O3:Eu phosphor particles prepared by spray pyrolysis

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

doi:10.1143/JJAP.45.9083

Effect of boric acid flux and drying control chemical additive on the characteristics of y₂O₃:Eu phosphor particles prepared by spray pyrolysis

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

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

10 Citations (Scopus)

Abstract

Y₂O₃:Eu phosphor particles with a spherical shape, a fine size, and high brightness under vacuum ultraviolet (VUV) illumination were prepared by spray pyrolysis. The polymeric precursors were needed to modify the spray solution to prepare spherical particles. The use of only flux with the polymeric precursors did not produce dense and spherical Y₂O ₃: Eu particles; that is, the produced particles were very porous. The addition of both a drying control chemical additive (DCCA) and boric acid to a spray solution containing polymeric precursors was found to produce Y ₂O₃: Eu phosphor particles with a dense structure while maintaining the spherical morphology. According to X-ray diffraction (XRD) analysis, the DCCA induced an enhancement of crystallinity. The use of boric acid flux improved the photoluminescence (PL) intensity under VUV illumination. In addition, the use of both boric acid flux and a DCCA with polymeric precursors further improved the PL intensity owing to the enhancement of the morphology and the crystallinity.

Original language	English
Pages (from-to)	9083-9087
Number of pages	5
Journal	Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
Volume	45
Issue number	12
DOIs	https://doi.org/10.1143/JJAP.45.9083
Publication status	Published - 2006 Dec 15
Externally published	Yes

Keywords

Phosphor
Photoluminescence
Spray pyrolysis

ASJC Scopus subject areas

Engineering(all)
Physics and Astronomy(all)

Access to Document

10.1143/JJAP.45.9083

Cite this

Koo, H. Y., Ju, S. H., Hong, S. K., Jung, D. S., Kang, Y. C., & Jung, K. Y. (2006). Effect of boric acid flux and drying control chemical additive on the characteristics of y₂O₃:Eu phosphor particles prepared by spray pyrolysis. Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers, 45(12), 9083-9087. https://doi.org/10.1143/JJAP.45.9083

Effect of boric acid flux and drying control chemical additive on the characteristics of y₂O₃:Eu phosphor particles prepared by spray pyrolysis. / Koo, Hye Young; Ju, Seo Hee; Hong, Seung Kwon et al.
In: Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers, Vol. 45, No. 12, 15.12.2006, p. 9083-9087.

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

Koo, HY, Ju, SH, Hong, SK, Jung, DS, Kang, YC & Jung, KY 2006, 'Effect of boric acid flux and drying control chemical additive on the characteristics of y₂O₃:Eu phosphor particles prepared by spray pyrolysis', Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers, vol. 45, no. 12, pp. 9083-9087. https://doi.org/10.1143/JJAP.45.9083

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abstract = "Y2O3:Eu phosphor particles with a spherical shape, a fine size, and high brightness under vacuum ultraviolet (VUV) illumination were prepared by spray pyrolysis. The polymeric precursors were needed to modify the spray solution to prepare spherical particles. The use of only flux with the polymeric precursors did not produce dense and spherical Y2O 3: Eu particles; that is, the produced particles were very porous. The addition of both a drying control chemical additive (DCCA) and boric acid to a spray solution containing polymeric precursors was found to produce Y 2O3: Eu phosphor particles with a dense structure while maintaining the spherical morphology. According to X-ray diffraction (XRD) analysis, the DCCA induced an enhancement of crystallinity. The use of boric acid flux improved the photoluminescence (PL) intensity under VUV illumination. In addition, the use of both boric acid flux and a DCCA with polymeric precursors further improved the PL intensity owing to the enhancement of the morphology and the crystallinity.",

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