过渡金属Cr掺杂对金红石光性影响的研究

无机材料学报

过渡金属Cr掺杂对金红石光性影响的研究

卢铁城^1,3; 刘彦章¹; 林理彬¹; 祖小涛¹; 朱居木²; 吴丽萍¹

1. 四川大学物理系和辐射物理及技术教育部重点实验室, 成都 610064; 2. 四川大学材料系, 成都厂610064; 3. 中国科学院国际材料物理中心, 沈阳 110015

收稿日期:2000-06-13 修回日期:2000-07-10 出版日期:2001-03-20 网络出版日期:2001-03-20

Influence of Transition-Metal Cr Doping on Optical Properties of Rutile Single Crystal

LU Tie-Cheng^1,3; LIU Yan-Zhang¹; LIN Li-Bin¹, ZU Xiao-Tao¹; ZHU Ju-Mu²; WU Li-Ping¹

1. Dept. of Phys. Key Lab for Radiation Physics and Technology of Ministry of Education; Sichuan University） Chengdu 610064; China; 2. Department of Materials Science; Sichuan University, Chengdu 610064, China; 3. International Center for Materials Physics, Chinese Academy of Sciences, Shengyang 110015, China

Received:2000-06-13 Revised:2000-07-10 Published:2001-03-20 Online:2001-03-20

摘要/Abstract

摘要： 报道了采用高温扩散掺杂敏化法在金红石晶体表面掺入Ｃｒ离子、有效提高可见光响应的研究结果．分别利用ＵＶ－ＶＩＳ、ＸＦＡ、ＸＲＤ和ＬＲＳ等测试手段对样品进行了分析．结果表明Ｃｒ离子掺入晶体表面后以Ｃｒ_２Ｏ_３的形式与基体ＴｉＯ_２形成固溶体Ｃｒ_２ＴｉＯ_５，提高了可见波段的光吸收，使原来位于４１０ｎｍ的ＴｉＯ_２的吸收边移到了７５０ｎｍ处，实现了与太阳光谱的匹配．

Abstract: The visible-light absorption of rutile was raised through doping Cr ion into the surface of rutile crystal with high-temperature-diffusion-doping-sensitization technique. TiO₂:Cr
specimen was analyzed by means of UV-VIS, XFA, XRD, XPS and LRS, respectively. As a result, it is shown that after Cr ion is doped
into the surface of the crystal, Cr ion exists in the solid-melting-state Cr₂TiO₅, which induces the original absorption edge(410nm)
move to 750nm, and achieves match with solar spectrum and raises optical absorption to visible-light effectively.

中图分类号:

卢铁城,刘彦章,林理彬,祖小涛,朱居木,吴丽萍. 过渡金属Cr掺杂对金红石光性影响的研究[J]. 无机材料学报.

LU Tie-Cheng,LIU Yan-Zhang,LIN Li-Bin,ZU Xiao-Tao,ZHU Ju-Mu,WU Li-Ping. Influence of Transition-Metal Cr Doping on Optical Properties of Rutile Single Crystal[J]. Journal of Inorganic Materials.