Photophysical properties of functionalized anthradithiophene (ADT) and pentacene (Pn) derivatives, as well as energy and charge transfer properties of donor-acceptor (D/A) pairs of these derivatives, are presented. The molecules studied were imaged on the single-molecule level in a polymeric and in a functionalized benzothiophene (BTBTB) crystalline host using room-temperature wide-field epifluorescence microscopy. The BTBTB host imposed orientational constraints on the guest molecules, depending on their functionalization. Flexibility of functionalization of both guest (ADT, Pn) and host (BTBTB) molecules can be used for systematic studies of nanoscale morphology and photophysics of D/A organic semiconductor bulk heterojunctions using single-molecule fluorescence microscopy.
|Number of pages||7|
|Journal||Chemical Physics Letters|
|State||Published - Jun 1 2015|
Bibliographical noteFunding Information:
We thank Prof. K. A. Willets for helpful discussions, G. Banton for assistance with software development for analysis of single molecule trajectories, Prof. R. J. Twieg for DCDHF, and K. McLelland and Prof. M. Graham for assistance with measurements of fluorescence spectra from D/A samples. This work was supported by the National Science Foundation via CAREER program (DMR-0748671) and DMR-1207309, as well as the SOLAR program (DMR-1035257).
© 2015 Elsevier B.V. All rights reserved.
ASJC Scopus subject areas
- Physics and Astronomy (all)
- Physical and Theoretical Chemistry