Electronic and Optical Properties of Doped Titanium Dioxide

掺杂二氧化钛的电子和光学性质

• 批准号: LP0347964
• 负责人: Prof Andrea Gerson
• 金额: $ 8.68万
• 依托单位: University of South Australia
• 依托单位国家: 澳大利亚
• 项目类别: Linkage Projects
• 财政年份: 2003
• 资助国家: 澳大利亚
• 起止时间: 2003-04-07 至 2007-12-31
• 项目状态: 已结题
• 来源: https://dataportal.arc.gov.au/RGS/Web/Grants/LP0347964
• 关键词: Electronic; Optical; Properties; Doped; Titanium

Titanium dioxide, is widely used as a white pigment, owing to its high refractive index, second, only after diamond. Yellowing of rutile pigment particles, observed on prolonged exposure to sunlight, is a serious problem that pigment manufacturers would like to overcome. It is proposed that aluminium-doping of rutile limits this discolouration by altering the electronic structure of the rutile particles. This project seeks to identify the specific electronic cause of the yellowing process, the nature of the Al defect,it's effect on the electronic structure of rutile, and the electronic perturbations that may occur when other dopants are used.

钛白粉，被广泛用作白色颜料，由于其折射率高，仅次于金刚石。金红石颜料颗粒在长时间暴露于阳光下时观察到的泛黄是颜料制造商想要克服的严重问题。有人提出，铝掺杂的金红石限制这种变色通过改变金红石颗粒的电子结构。该项目旨在确定泛黄过程的特定电子原因，Al缺陷的性质，它对金红石电子结构的影响，以及使用其他掺杂剂时可能发生的电子扰动。