title: Long-Term Stable Organic Photodetectors with Ultra Low Dark Currents for High Detectivity Applications.
abstract: Printed organic photodetectors can transform plastic, paper or glass into smart surfaces. This innovative technology is now growing exponentially due to the strong demand in human-machine interfaces. To date, only niche markets are targeted since organic sensors still present reduced performances in comparison with their inorganic counterparts. Here we demonstrate that it is possible to engineer a state-of-the-art organic photodetector approaching the performances of Si-based photodiodes in terms of dark current, responsivity and detectivity. Only three solution-processed layers and two low-temperature annealing steps are needed to achieve the performance that is significantly better than most of the organic photodetectors reported so far. We also perform a long-term ageing study. Lifetimes of over 14,000 hours under continuous operation are more than promising and demonstrate that organic photodetectors can reach a competitive level of stability for successful commercialization of this new and promising technology.
authors.affiliation: University of Bordeaux, IMS, UMR 5218, F-33400 Talence, France and CNRS, IMS, UMR 5218, F-33400 Talence, France.|ISORG, 60 Rue des berges, Parc Polytec, Immeuble Tramontane, 38000 Grenoble, France.
authors.forename: Marcin
authors.initials: M
authors.lastname: Kielar
authors.affiliation: ISORG, 60 Rue des berges, Parc Polytec, Immeuble Tramontane, 38000 Grenoble, France.
authors.forename: Olivier
authors.initials: O
authors.lastname: Dhez
authors.affiliation: University of Bordeaux, LCPO, UMR 5629, F-33400 Talence, France.
authors.forename: Gilles
authors.initials: G
authors.lastname: Pecastaings
authors.affiliation: University of Bordeaux, IMS, UMR 5218, F-33400 Talence, France and CNRS, IMS, UMR 5218, F-33400 Talence, France.
authors.forename: Arnaud
authors.initials: A
authors.lastname: Curutchet
authors.affiliation: University of Bordeaux, IMS, UMR 5218, F-33400 Talence, France and CNRS, IMS, UMR 5218, F-33400 Talence, France.
authors.forename: Lionel
authors.initials: L
authors.lastname: Hirsch