Abstract
The effects of irradiating ethanol cluster ion beams on mica surfaces were investigated. Traces were formed by the irradiation of ethanol cluster ion beams. The number of traces on the irradiated mica surface increased with the dose and acceleration voltage. On the other hand, the number of traces decreased with increasing retarding voltage. The contact angle of the mica surface irradiated with ethanol cluster ion beams increased with the acceleration voltage. The decrease in the numbers of potassium atoms on the mica surface and the increase in the surface roughness induced by the irradiation of ethanol cluster ion beams may be the causes of the increased contact angle.
