title: Oligothiophene semiconductors: synthesis, characterization, and applications for organic devices.
abstract: Oligothiophenes provide a highly controlled and adaptable platform to explore various synthetic, morphologic, and electronic relationships in organic semiconductor systems. These short-chain systems serve as models for establishing valuable structure-property relationships to their polymer analogs. In contrast to their polymer counterparts, oligothiophenes afford high-purity and well-defined materials that can be easily modified with a variety of functional groups. Recent work by a number of research groups has revealed functionalized oligothiophenes to be the up-and-coming generation of advanced materials for organic electronic devices. In this review, we discuss the synthesis and characterization of linear oligothiophenes with a focus on applications in organic field effect transistors and organic photovoltaics. We will highlight key structural parameters, such as crystal packing, intermolecular interactions, polymorphism, and energy levels, which in turn define the device performance.
authors.affiliation: Department of Polymer Science and Engineering, Conte Polymer Research Center, University of Massachusetts , 120 Governors Drive, Amherst, Massachusetts 01003, United States.
authors.forename: Lei
authors.initials: L
authors.lastname: Zhang
authors.forename: Nicholas S
authors.initials: NS
authors.lastname: Colella
authors.forename: Benjamin P
authors.initials: BP
authors.lastname: Cherniawski
authors.forename: Stefan C B
authors.initials: SC
authors.lastname: Mannsfeld
authors.forename: Alejandro L
authors.initials: AL
authors.lastname: Briseno