Preparation, characterization, and application of near-UV -> red conversion fluorescent nanosheets and their composite films

2017 Fiscal Year Final Research Report

• Project/Area Number: 15K04612
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Nanomaterials chemistry
• Research Institution: Keio University
• Principal Investigator: ISOBE Tetsuhiko 慶應義塾大学, 理工学部(矢上), 教授 (30212971)
• Project Period (FY): 2015-04-01 – 2018-03-31
• Keywords: 蛍光体 / ナノシート / 波長変換 / 太陽電池

Outline of Final Research Achievements

Y2O3:Bi3+,Eu3+ nanosheets, which emit red light under near-UV irradiation, were obtained by calcining hydroxide precursor nanosheets synthesized through a hydrothermal method. An aqueous dispersion of positively charged Y2O3:Bi3+,Eu3+ nanosheets with polyethyleneimine adsorbed to the surface was prepared for their deposition. Fluorescent nanosheets were electrophoretically deposited on a transparent conductive substrate under a constant voltage. Next, polyvinylpyrrolidone was coated on the film. The effects of the PVP-coated film samples on the properties of a commercial monocrystalline silicon photovoltaic module were evaluated.

Free Research Field

ナノ蛍光体材料