Nanofabrication using surface chemical reactions

As a research associate of the Institute for Solid State Physics, the University of Tokyo, he studied nanofabrication using chemical reactions on metal surfaces, observed by scanning tunneling microscopy (STM), in collaboration with Prof. K. Tanaka. For instance, he fabricated the arrays of one-dimensional Cu-O chains on a silver surface and silver carbonate on a silver surface. He also revealed the structure of oxygen adsorbed on a Cu(001) surface.

Nanoscale control of chain polymerization and fabrication of single molecular devices

After moving to RIKEN, in collaboration with Prof. M. Aono, he developed a new method using a probe tip of STM to control the chain polymerization of diacetylene compounds on a self-ordered layers, thereby creating single straight nanowires of conductive polydiacetylene at any position. This method will be useful for realizing single molecular devices.