title: Description of the nanostructured morphology of [6,6]-phenyl-C61 -butyric acid methyl ester (PCBM) by XRD, DSC and solid-state NMR.
abstract: PCBM or [6,6]-phenyl-C(61)-butyric acid methyl ester is nowadays still one of the most successful electron acceptors for plastic bulk heterojunction (BHJ) photovoltaic devices. In this study, a set of complementary techniques, i.e. solid-state NMR, XRD and DSC, is proposed as a fast and sensitive tool to screen the morphology of PCBM specimens with different preparation histories. Based on proton NMR relaxation decay time values, an interval can be derived that situates the average crystal dimensions and which can further be refined on the basis of XRD patterns and DSC thermograms.
authors.affiliation: Institute for Materials Research (IMO), Hasselt University, Agoralaan, Building D, B-3590 Diepenbeek, Belgium.
authors.forename: Raoul
authors.initials: R
authors.lastname: Mens
authors.forename: Sylvain
authors.initials: S
authors.lastname: Chambon
authors.forename: Sabine
authors.initials: S
authors.lastname: Bertho
authors.forename: Guy
authors.initials: G
authors.lastname: Reggers
authors.forename: Bart
authors.initials: B
authors.lastname: Ruttens
authors.forename: Jan
authors.initials: J
authors.lastname: D'Haen
authors.forename: Jean
authors.initials: J
authors.lastname: Manca
authors.forename: Robert
authors.initials: R
authors.lastname: Carleer
authors.forename: Dirk
authors.initials: D
authors.lastname: Vanderzande
authors.forename: Peter
authors.initials: P
authors.lastname: Adriaensens