title: A facile protection-deprotection route for obtaining indigo pigments as thin films and their applications in organic bulk heterojunctions.
abstract: Indigo and its derivatives are industrially-important dyes known for centuries. The low solubility of these compounds limits their applications and hinders potential synthetic chemistry using indigo as a building-block. Herein we report attachment of the tert-butoxy carbonyl (tBOC) thermolabile protecting group to indigos, allowing their processing into neat thin films as well as mixed films with a semiconducting polymer. Photoinduced charge transfer is observed to and from these pigments and the polymer.
authors.affiliation: Linz Institute for Organic Solar Cells (LIOS), Physical Chemistry, Johannes Kepler University, Linz, Austria. eric_daniel.glowacki@jku.at
authors.forename: Eric Daniel
authors.initials: ED
authors.lastname: Głowacki
authors.forename: Gundula
authors.initials: G
authors.lastname: Voss
authors.forename: Kadir
authors.initials: K
authors.lastname: Demirak
authors.forename: Marek
authors.initials: M
authors.lastname: Havlicek
authors.forename: Nevsal
authors.initials: N
authors.lastname: Sünger
authors.forename: Aysu Ceren
authors.initials: AC
authors.lastname: Okur
authors.forename: Uwe
authors.initials: U
authors.lastname: Monkowius
authors.forename: Jacek
authors.initials: J
authors.lastname: Gąsiorowski
authors.forename: Lucia
authors.initials: L
authors.lastname: Leonat
authors.forename: Niyazi Serdar
authors.initials: NS
authors.lastname: Sariciftci