We have synthesized cations of Ta-atom-encapsulated Si16 cage nanoclusters (Ta@Si16) in gas phase and deposited them onto conductive surface terminated with C60. And it has been demonstrated via scanning tunneling microscopy and spectroscopy that those cations can be densely immobilized onto such surface while retaining their cage shape and positive charge. The nanoclusters exhibit,at the same time, excellent thermal stability. The results will provide a very useful building block for highly integrated nanocluster devices.
“Nakajima Designer Nanocluster Assembly Project”
Masato Nakaya, Takeshi Iwasa, Hironori Tsunoyama, Toyoaki Eguchi, and Atsushi Nakajima. “Formation of Superatom Monolayer Using Gas-Phase-Synthesized Ta@Si16 Nanocluster Ions”. Nanoscale, 2014, Advance Article, Published online, 07 Oct 2014, doi: 10.1039/C4NR04211E.
Atsushi Nakajima, Ph.D.
Research Director, “Nakajima Designer Nanocluster Assembly Project, JST-ERATO,” Professor, Keio University
Department of Research Project, JST