| Budget Amount *help |
¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2016: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2015: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2014: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
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| Outline of Final Research Achievements |
Advamcenments of synthetic technique and characterization make it possible to synthesize gold clusters with presisely controlled composition. These clusters show unique electronic, optical and magnetic properties for practical application to catalyst, and electronic device. Theoretical studies have shown that electronic and magnetic properties of Au clusters with atomic precision can be efficiently controlled by doping other metal elements. Ir, however has not been selected as dopant for Au25 clusters since the inmissiblity in bulk. A novel Ir doped Au clusters were synthesed and characterized by various spectroscopy. Ir doping was confiermed by MALDI FT-ICR mass spectrometry and AuIr clusters showed a series of peaks which were assigned to Au25S12, Au(25-x)IrxS12. XPS measurement of clusters revealed that the Ir atom located on the staple position of the cluster. Electrochemical analysys showed that the charged state of Ir doped Au cluster was different from corresponding Au cluster.
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