Luminescence Properties of Eu2+-and Eu3+-activated BaSi2O5 Phosphor Thin Films Grown by Using Pulsed Laser Deposition

被引：4

作者：

Chung, Jong Won ^{[1
]}

Yang, Hyun Kyoung ^{[1
]}

Moon, Byung Kee ^{[1
]}

Choi, Byung Chun ^{[1
]}

Jeong, Jung Hyun ^{[1
]}

Yi, Soung Soo ^{[2
]}

Jang, Kiwan ^{[3
]}

Lee, Ho Sueb ^{[3
]}

机构：

[1] Pukyong Natl Univ, Dept Phys, Pusan 608737, South Korea

[2] Silla Univ, Dept Elect Mat Engn, Pusan 617736, South Korea

[3] Chanwon Natl Univ, Dept Phys, Chang Won 614714, South Korea

来源：

JOURNAL OF THE KOREAN PHYSICAL SOCIETY | 2009年 / 55卷 / 05期

关键词：

BaSi2O5:Eu2+; Photoluminescence; Pulsed laser deposition (PLD); Oxygen; ENHANCEMENT;

D O I：

10.3938/jkps.55.1965

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

BaSi2O5:Eu2+ thin films have been grown on Al2O3 (0001) substrate by using the pulsed laser deposition technique at a substrate temperature of 650 degrees C under various oxygen pressures. The enhancement emission mechanism of the blue to red color from BaSi2O5:Eu2+ phosphor to BaSi2O5:Eu3+ thin films by varying the oxygen pressure have been investigated. The crystallization, surface morphology and luminescent properties of the BaSi2O5:Eu3+ thin films depend on the oxygen pressure. The optimized emission was obtained at a 300-mTorr oxygen pressure, and that optimize emission may result not only from the improved crystallinity but also from the reduced internal reflections caused by the rougher surfaces. Moreover, the luminescent intensity and the surface roughness of the films as functions of the oxygen pressure exhibit similar behaviors.

引用

页码：1965 / 1968

页数：4

共 15 条

[1] Deposition of (Zn,Mn)2SiO4 for plasma display panels using charged liquid cluster beam [J].