A facile protection–deprotection route for obtaining indigo pigments as thin films and their applications in organic bulk heterojunctions
作者:Eric Daniel Głowacki、Gundula Voss、Kadir Demirak、Marek Havlicek、Nevsal Sünger、Aysu Ceren Okur、Uwe Monkowius、Jacek Gąsiorowski、Lucia Leonat、Niyazi Serdar Sariciftci
DOI:10.1039/c3cc42889c
日期:——
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.