2010 Fiscal Year Final Research Report

Synthesis of heterostructured metal sulfide semiconductor nanoparticles for visible light hydrogen evolution

Research Project

Project/Area Number	21750132
Research Category	Grant-in-Aid for Young Scientists (B)
Allocation Type	Single-year Grants
Research Field	Functional materials chemistry
Research Institution	University of Tsukuba
Principal Investigator	KANEHARA Masayuki University of Tsukuba, 大学院・数理物質科学研究科, 助教 (40375415)
Project Period (FY)	2009 – 2010
Keywords	コロイド / 超微粒子
Research Abstract	Here we report the synthesis of conducting indium tin oxide (ITO) nanoparticles (NPs) and their SPR properties, where SPR peaks of the ITO NPs can be easily tuned by changing the concentration of Sn doping from 3 to 30 mol %. The shortest SPR wavelength of 1618 nm in 10 %Sn-doped ITO NPs may reflect the highest electron carrier density in the ITO NPs and represents the first example of well-defined SPR tunable conductive metal oxide NPs in the NIR region. The controllable SPR frequencies of metal oxides may offer a novel approach for noble metal-free SPR applications.