Ultra-fine Nanostructures Produced by Single Particle

Abstract

Focusing of reactive intermediates into ultra-small spatial area provides fundamental concepts for precise visualization of nano-materials and/or miniaturization of materials by ionizing radiations. In contrast, homogeneous interaction of ionizing radiation in the bulk matters is also the most important principle in radiation chemistry, leading to the highly quantitative analysis of chemical reactions induced by radiation chemical processes in relation to those in the photochemical dynamics. “Focusing of reactive intermediates within a charged particle track” is the nature of chemical reactions induced by high energy charged particle, which is in the cross-over range of concepts of the recent nano-miniaturization / visualization techniques and well-sophisticated radiation chemical processes. In the present paper, we demonstrated intra-track reactions induced by high energy particles as a versatile tool for one-dimensional nano-material fabrication by combining the high permeability of the particle in the materials with non-homogeneous distribution of the intermediates along the trajectories.