Enhancement of cathodoluminescent and photoluminescent properties of Eu:Y2O3 luminescent films by vacuum cooling

被引：39

作者：

Kumar, D ^{[1
]}

Sankar, J

Cho, KG

Craciun, V

Singh, RK

机构：

[1] N Carolina Agr & Tech State Univ, Dept Mech Engn, Ctr Adv Mat & Smart Struct, Greensboro, NC 27411 USA

[2] Univ Florida, Dept Mat Sci & Engn, Gainesville, FL 32611 USA

来源：

APPLIED PHYSICS LETTERS | 2000年 / 77卷 / 16期

关键词：

D O I：

10.1063/1.1318938

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

This letter investigates the role of postdeposition oxygen treatments upon their luminescent properties by synthesizing Eu:Y2O3 films by pulsed laser deposition under different conditions and subjecting them to various postdeposition oxygen treatments. Our results have shown that Eu:Y2O3 films grown in 300 mTorr oxygen ambient and cooled in vacuum (10(-6) Torr) after the termination of growth exhibit better photoluminescent and cathodoluminescent brightness than those grown in (i) vacuum and cooled in vacuum and (ii) 300 mTorr oxygen and cooled in 2 Torr oxygen. Two possible mechanisms have been proposed to explain these results. (C) 2000 American Institute of Physics. [S0003- 6951(00)03942-5].

引用

页码：2518 / 2520

页数：3

共 11 条

[1] Luminescence behavior of pulsed laser deposited Eu:Y2O3 thin film phosphors on sapphire substrates [J].