title: Decacyclene Trianhydride at Functional Interfaces: An Ideal Electron Acceptor Material for Organic Electronics.
abstract: We report the interface energetics of decacyclene trianhydride (DTA) monolayers on top of two distinct model surfaces, namely, Au(111) and Ag(111). On the latter, combined valence band photoemission and X-ray absorption measurements that access the occupied and unoccupied molecular orbitals, respectively, reveal that electron transfer from substrate to surface sets in. Density functional theory calculations confirm our experimental findings and provide an understanding not only of the photoemission and X-ray absorption spectral features of this promising organic semiconductor but also of the fingerprints associated with the interface charge transfer.
authors.affiliation: Donostia International Physics Center, Paseo Manuel Lardizabal 4 , 20018 San Sebastián, Spain.|Centro de Física de Materiales (CSIC-UPV/EHU) - Materials Physics Center (MPC), Paseo Manuel Lardizabal 5, 20018 San Sebastián, Spain.|Ikerbasque, Basque Foundation for Science, 48011 Bilbao, Spain.
authors.forename: Dimas G
authors.initials: DG
authors.lastname: de Oteyza
authors.affiliation: Department of Energy Conversion and Storage, Technical University of Denmark , DK-4000 Roskilde, Denmark.
authors.forename: Juan M
authors.initials: JM
authors.lastname: Garcia-Lastra
authors.affiliation: Department of Chemistry and Biochemistry, Department of Materials, Center for Polymers and Organic Solids, University of California , Santa Barbara, California 93106, United States.|Chemical Sciences Division, Lawrence Berkeley National Laboratory , Berkeley, California 94720, United States.
authors.forename: Francesca M
authors.initials: FM
authors.lastname: Toma
authors.affiliation: Donostia International Physics Center, Paseo Manuel Lardizabal 4 , 20018 San Sebastián, Spain.
authors.forename: Patrizia
authors.initials: P
authors.lastname: Borghetti
authors.affiliation: CNR-IOM, Laboratorio Nazionale TASC, Basovizza SS-14 Km. 163.5, Trieste 34149, Italy.
authors.forename: Luca
authors.initials: L
authors.lastname: Floreano
authors.affiliation: CNR-IOM, Laboratorio Nazionale TASC, Basovizza SS-14 Km. 163.5, Trieste 34149, Italy.
authors.forename: Alberto
authors.initials: A
authors.lastname: Verdini
authors.affiliation: CNR-IOM, Laboratorio Nazionale TASC, Basovizza SS-14 Km. 163.5, Trieste 34149, Italy.
authors.forename: Albano
authors.initials: A
authors.lastname: Cossaro
authors.affiliation: Department of Chemistry and Biochemistry, Department of Materials, Center for Polymers and Organic Solids, University of California , Santa Barbara, California 93106, United States.
authors.forename: Toan V
authors.initials: TV
authors.lastname: Pho
authors.affiliation: Department of Chemistry and Biochemistry, Department of Materials, Center for Polymers and Organic Solids, University of California , Santa Barbara, California 93106, United States.
authors.forename: Fred
authors.initials: F
authors.lastname: Wudl
authors.affiliation: Donostia International Physics Center, Paseo Manuel Lardizabal 4 , 20018 San Sebastián, Spain.|Centro de Física de Materiales (CSIC-UPV/EHU) - Materials Physics Center (MPC), Paseo Manuel Lardizabal 5, 20018 San Sebastián, Spain.|Departamento de Física Aplicada I, Universidad del Pais Vasco , Paseo Manuel Lardizabal 5, 20018 San Sebastián, Spain.
authors.forename: J Enrique
authors.initials: JE
authors.lastname: Ortega
keywords: DFT; Energy level alignment; NEXAFS; charge transfer; metal−organic interfaces; photoemission