title: Insights into π-conjugated small molecule neat films and blends as determined through photoconductivity.
abstract: Spectrally dependent steady-state photoconductivity is a convenient method to gain insight into the charge generation and transport processes within a given material. In this work, we report on the photoconductive response of solution-processed neat films and blends of the fullerene, PC(71)BM, and the donor-acceptor small-molecule, p-DTS(PTTh(2))(2), as function of the processing additive, diiodooctance (DIO). The results, when considered in the context of their structural, optical, and electronic properties give insight into the dominant carrier generation and charge transport mechanisms in each of these molecular systems.
authors.affiliation: Center for Polymers and Organic Solids, University of California, Santa Barbara, California 93106, USA.
authors.forename: Jacek J
authors.initials: JJ
authors.lastname: Jasieniak
authors.forename: Ben B Y
authors.initials: BB
authors.lastname: Hsu
authors.forename: Christopher J
authors.initials: CJ
authors.lastname: Takacs
authors.forename: Gregory C
authors.initials: GC
authors.lastname: Welch
authors.forename: Guillermo C
authors.initials: GC
authors.lastname: Bazan
authors.forename: Daniel
authors.initials: D
authors.lastname: Moses
authors.forename: Alan J
authors.initials: AJ
authors.lastname: Heeger
mesh_terms: D004553:Electric Conductivity; D004579:Electron Transport / Q000528:radiation effects; D037741:Fullerenes / Q000737:chemistry* / Q000528:radiation effects*; D008027:Light; D008422:Materials Testing; D008567:Membranes, Artificial; D049329:Nanostructures / Q000737:chemistry* / Q000528:radiation effects / Q000648:ultrastructure*; D010316:Particle Size
chemical_list: D037741:Fullerenes; D008567:Membranes, Artificial