Synthesis and characterization of Y2O3 : Eu 3+ red nano phosphor powders using RF thermal plasma (RF 열플라즈마를 이용한 Y2O3: Eu 3+ 적색 나노 형광체 분말 합성)

Seung-Yong Lee (이승용); Sang Man Koo (구상만); Kwangtaek Hwang (황광택); Kim Jinho (김진호); Han Kyu Sung (한규성)

doi:10.6111/JKCGCT.2015.25.6.272

Synthesis and characterization of Y2O3 : Eu 3+ red nano phosphor powders using RF thermal plasma

Journal of the Korean Crystal Growth and Crystal Technology
Abbr : J. Korean Cryst. Growth Cryst. Technol.
2015, 25(6), pp.272~279
DOI : 10.6111/JKCGCT.2015.25.6.272
Publisher : The Korea Association Of Crystal Growth, Inc.
Research Area : Engineering > Materials Science and Engineering

Seung-Yong Lee ¹, Sang Man Koo ², Kwangtaek Hwang ³, Kim Jinho ³, Han Kyu Sung ³

¹한국세라믹기술원 이천분원
²한양대학교
³한국세라믹기술원

Accredited

ABSTRACT

Y2O3 : Eu 3+ is an excellent red-emitting phosphor, which has been widely used for display devices due to highly luminescent property and chemical stability. In this study, Y2O3 : Eu 3+ red phosphors were prepared using the solid state reaction and RF thermal plasma synthesis. The particle size of Y2O3 : Eu 3+ phosphors obtained by the solid state reaction varied from 10 to 20 μm, and 30~100 nanometer sized Y2O3 : Eu 3+ particles were obtained from a liquid form of raw material through RF thermal plasma synthesis without an additional heat treatment. Photoluminescence measurements of the obtained Y2O3 : Eu 3+ particles showed a red emission peak at 611 nm ( 5 D0→ 7 F2). PL intensity of red nano phosphors prepared by RF thermal plasma synthesis was comparable to that of red phosphors prepared by the solid state reaction, indicating that nano-sized Y2O3 : Eu 3+ red phosphors could be successfully synthesized using one-step process of RF thermal plasma.

KEYWORDS

Y2O3 : Eu 3+ red phosphor, Raw material, RF thermal plasma, Solid state reaction, Photoluminescence

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