Development of multimodal photoenergy converters with photoluminescence and photocatalytic activity

2015 Fiscal Year Final Research Report

• Project/Area Number: 26790017
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Nanomaterials chemistry
• Research Institution: National Institute of Advanced Industrial Science and Technology (2015); Keio University (2014)
• Principal Investigator: Takeshita Satoru 国立研究開発法人産業技術総合研究所, 化学プロセス研究部門, 研究員 (90631705)
• Project Period (FY): 2014-04-01 – 2016-03-31
• Keywords: 蛍光体 / 光触媒 / ナノ材料 / 光物性

Outline of Final Research Achievements

Eu3+-doped YVO4 nanoparticles were prepared as a model compound of a multimodal photoenergy converter that shows photoluminescence and photocatalytic activity at the same time. The nanoparticles showed two photoenergy converting functions under UV irradiation: red photoluminescence corresponding to 4f → 4f transitions of Eu3+ and photocatalytic decomposition of methyl orange. These two photoenergy conversion modes have a competitive relation for the compositional range used in this work. The author also found that the dominant photoenergy conversion mode can be controlled by changing Eu3+ concentration and distribution.

Free Research Field

ナノ材料化学