发光学报2011，Vol.32Issue(1)：12-15,4.DOI:10.3788/fgxb20113201.0012
Ho3+掺杂的Ba0.8Sr0.2TiO3厚膜的发光特性
Luminescence Properties of Ho3+: Ba0. 8Sr0. 2TiO3 Thick Films
摘要
Abstract
Ho3 + doped Ba0. 8Sr0. 2TiO3 (BST) thick films were fabricated on alumina substrates by the screen printing techniques.XRD patterns show that the lattice parameters of BST films have a maximum value when Ho3+ concentration is 1.0％. Under 514 nm Ar+ laser excitation, the emission peaks lacate at about 549,650 and 753 nm corresponding to ( 5 F4, 5 S2 ) →5 I8, 5 F5→5 I8 and ( 5 F4, 5 S2 ) →5 I7 transition of Ho3 + ion. Under 800 nm laser excitation, blue and green up-conversion luminescence was observed. The blue and green upconversion luminescence mechanisms were also discussed. The results show that the Ho3+: BST materials are prospective candidates for applications in new photoelectric devices.关键词
Ho3+/BST厚膜/上转换发光Key words
Ho3+/ BST thick films/ up-conversion luminescence分类
数理科学引用本文复制引用
吴继清,章天金,汪竞阳,余琳,潘瑞琨..Ho3+掺杂的Ba0.8Sr0.2TiO3厚膜的发光特性[J].发光学报,2011,32(1):12-15,4.基金项目
国家自然科学基金(50972040)资助项目 （50972040）
