title: Organic single-crystalline p-n junction nanoribbons.
abstract: This article focuses on the growth and transport properties of organic single-crystalline p-n junction nanoribbons. The development of organic nanoelectronics requires the fabrication of organic nanometer-sized p-n junctions for high-performance devices and integrated circuits. Here we demonstrate the formation of single-crystalline p-n junction nanoribbons of organic semiconductors by selective crystallization of copper hexadecafluorophthalocyanine (F(16)CuPc, n-type) on copper phthalocyanine (CuPc, p-type) single-crystalline nanoribbons. The crystallization of F(16)CuPc onto CuPc requires several parameters, including similar molecular structures, similar lattice constants, and pi-stacking along the nanoribbon axis. Ambipolar transport of the p-n junction nanoribbons was observed in field-effect transistors with balanced carrier mobilities of 0.05 and 0.07 cm(2) V(-1) s(-1) for F(16)CuPc and CuPc, respectively. A basic p-n junction nanoribbon photovoltaic device showed current rectification under AM 1.5 simulated light. The discrete p-n junction nanoribbons may serve as ideal systems for understanding basic charge-transport and photovoltaic behaviors at organic-organic interfaces.
authors.affiliation: Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China.
authors.forename: Yajie
authors.initials: Y
authors.lastname: Zhang
authors.forename: Huanli
authors.initials: H
authors.lastname: Dong
authors.forename: Qingxin
authors.initials: Q
authors.lastname: Tang
authors.forename: Sunzida
authors.initials: S
authors.lastname: Ferdous
authors.forename: Feng
authors.initials: F
authors.lastname: Liu
authors.forename: Stefan C B
authors.initials: SC
authors.lastname: Mannsfeld
authors.forename: Wenping
authors.initials: W
authors.lastname: Hu
authors.forename: Alejandro L
authors.initials: AL
authors.lastname: Briseno