Observation Examples of Nanotechnology

(Prof. Fukuda, Department of Electrical and Electronic Engineering, Faculty of Engineering, Muroran Institute of Technology)

This is an example of the shape analysis and potential analysis of organic thin-film transistors. These transistors are attracting attention for applications such as flexible displays. The material is 3-hexylthiophene (P3HT) that offers high mobility.

As shown in the instrument schematic diagram below, the actual SPM measurements were performed by grounding the source electrode and independently applying potentials to the gate and drain electrodes to determine how the surface potential changes on the gate.