METHOD AND DEVICE FOR MEASURING CHARGE TRANSFER OF THIN FILM

摘要

PROBLEM TO BE SOLVED: To make a distance between electrodes optionally variable so as to measure the charge mobility or high charge mobility of a very thin film. SOLUTION: A spot near one electrode 42 is irradiated with a laser beam to generate excitons in the thin film 36 as an object of measurement. After a charge isolation process is carried out, only either positive or negative charge is drifted in the direction of plane of the thin film to the other electrode 44, a transient current induced then is measured, and charge mobility is obtained on the basis of the average speed of charge. COPYRIGHT: (C)2005,JPO&NCIPI