TITANIA-BASED MATERIALS WITH ENHANCED PHOTO-SENSITIVITY FOR SOLAR-HYDROGEN.

对太阳能-氢具有增强光敏性的二氧化钛基材料。

• 批准号: DP0451589
• 负责人: Prof Charles Sorrell
• 金额: $ 17.82万
• 依托单位: The University of New South Wales
• 依托单位国家: 澳大利亚
• 项目类别: Discovery Projects
• 财政年份: 2004
• 资助国家: 澳大利亚
• 起止时间: 2004-01-01 至 2008-06-30
• 项目状态: 已结题
• 来源: https://dataportal.arc.gov.au/RGS/Web/Grants/DP0451589
• 关键词: TITANIA; BASED; MATERIALS; ENHANCED; PHOTO

Aims: Enhancement of the photo-sensitivity of titania photo-electrodes will be achieved through the effect of aliovalent ions in the titania lattice, leading to, at a high density of states, the imposition of mid-gap bands. This will result in the reduction of the effective band gap required for ionisation. Significance: The practical application of titania for the photolysis of water using solar energy at efficiencies sufficiently high for commercialisation (greater than 10%). Innovation: Examination for the first time of the impact of the electronic structure on the photo-sensitivity of oxide materials, including titania single crystals and polycrystals.

目的：通过二氧化钛晶格中异价离子的作用，增强二氧化钛光电极的光敏性，从而在高态密度下产生中能带。这将导致电离所需的有效带隙减小。意义：二氧化钛在利用太阳能光解水方面的实际应用，其效率足以实现商业化（大于 10%）。创新：首次研究电子结构对氧化物材料（包括二氧化钛单晶和多晶）光敏性的影响。