Photoswitching behavior of a novel single molecular tip for noncontact atomic force microscopy designed for chemical identification.
A tripod molecule with an azobenzene arm was designed as a single molecular tip for noncontact atomic force microscopy (NC-AFM). The azobenzene moiety showed photoisomerization that enabled measurements of the same position of the sample by different tip apexes with different interactions. Photoswitching behavior of the molecule synthesized and adsorbed on Au surfaces was examined and reversible switching between the trans- and cis forms was successfully confirmed by NC-AFM measurements.
Department of Chemistry, Graduate School of Science and Engineering, Tokyo Institute of Technology, 2-12-1-W4-10 Ookayama, Meguro-ku, Tokyo, 152-8551, Japan.
Daiko
D
Takamatsu
Yoko
Y
Yamakoshi
Ken-ichi
K
Fukui
D000327:Adsorption; D001391:Azo Compounds / Q000737:chemistry*; D006046:Gold / Q000737:chemistry; D049671:History, 18th Century; D007536:Isomerism; D018625:Microscopy, Atomic Force / Q000379:methods*; D036103:Nanotechnology; D010777:Photochemistry
D001391:Azo Compounds; D006046:Gold; C009850:azobenzene