title: Dipolar-modulated charge-doped trilayer organic semiconductor n-n heterojunction.
abstract: A novel dipolar-modulated charge-doped trilayer n-n organic heterojunction with a bidirectional tunable energy band discontinuity is constructed. The rectifying mechanism of the trilayer is similar to the rectifying and inverse-rectifying characteristics from n-p and p-n junctions, respectively. Zero-bias optoelectronic behavior and persistent photoconductivity are discovered. These results show that what are viewed as technological hurdles in the development of an organic n-n heterojunction should, in fact, lead to a better approach in organic optoelectronics.
authors.affiliation: Institut für Angewandte Physik, Westfälische Wilhelms-Universität Münster, 48149, Münster, Germany. Jianing.Liu@tu-braunschweig.de
authors.forename: Jianing
authors.initials: J
authors.lastname: Liu
authors.forename: Katharina
authors.initials: K
authors.lastname: Ditte
authors.forename: Wei
authors.initials: W
authors.lastname: Jiang
authors.forename: Zhaohui
authors.initials: Z
authors.lastname: Wang
authors.forename: Cornelia
authors.initials: C
authors.lastname: Denz