<i>pn-</i>homojunction formation in single fullerene films

Abstract

A pn-homojunction was fabricated in a single fullerene (C60) film containing MoO3- and Ca-doped regions. The clear observation of masking effects under light irradiation to both sides of the electrode confirmed the existence of a pn-homojunction in the bulk cell. The position of the pn-homojunction was intentionally controlled by changing the thickness of the MoO3/Ca doped regions.