고상법에 의한 BaSrSiO4 형광체의 분말합성 및 발광특성
Synthesis of BaSrSiO4 Phosphors by Solid State Reaction and Its Luminescent Properties
강주영(충남대학교 신소재공학과); 원창환(충남대학교 신소재공학과); 원형일(충남대학교); 하이크넬스시안(충남대학교)
23권 12호, 728~732쪽
초록
In this study, green barium strontium silicate phosphor (BaSrSiO4:Eu3+, Eu2+) was synthesized using a solid-state reaction method in air and reducing atmosphere. Investigation of the firing temperature indicates that a single phase of BaSrSiO4is formed when the firing temperature is higher than 1400 oC. The effect of firing temperature and doping concentration on luminescent properties are investigated. The light-emitting property was the best when the molar content of Eu2O3 was 0.025mol. Also, the luminescent brightness of the BaSrSiO4 fluorescent substance was the best when the particle size of the barium was 0.5 μm. BaSrSiO4 phosphors exhibit the typical green luminescent properties of Eu3+ and Eu2+. The characteristics of the synthesized BaSrSiO4:Eu3+, Eu2+ phosphor were investigated using X-ray diffraction (XRD) and scanning electron microscopy. The maximum emission band of the BaSrSiO4:Eu3+, Eu2+ was 520 nm.
Abstract
In this study, green barium strontium silicate phosphor (BaSrSiO4:Eu3+, Eu2+) was synthesized using a solid-state reaction method in air and reducing atmosphere. Investigation of the firing temperature indicates that a single phase of BaSrSiO4is formed when the firing temperature is higher than 1400 oC. The effect of firing temperature and doping concentration on luminescent properties are investigated. The light-emitting property was the best when the molar content of Eu2O3 was 0.025mol. Also, the luminescent brightness of the BaSrSiO4 fluorescent substance was the best when the particle size of the barium was 0.5 μm. BaSrSiO4 phosphors exhibit the typical green luminescent properties of Eu3+ and Eu2+. The characteristics of the synthesized BaSrSiO4:Eu3+, Eu2+ phosphor were investigated using X-ray diffraction (XRD) and scanning electron microscopy. The maximum emission band of the BaSrSiO4:Eu3+, Eu2+ was 520 nm.
- 발행기관:
- 한국재료학회
- 분류:
- 재료공학