Record Details
Enhanced charge photogeneration promoted by crystallinity in small-molecule donor-acceptor bulk heterojunctions
ScholarsArchive at Oregon State University
| Field | Value |
|---|---|
| Title | Enhanced charge photogeneration promoted by crystallinity in small-molecule donor-acceptor bulk heterojunctions |
| Names |
Paudel, Keshab
(creator) Johnson, Brian (creator) Thieme, Mattson (creator) Haley, Michael M. (creator) Payne, Marcia M. (creator) Anthony, John E. (creator) Ostroverkhova, Oksana (creator) |
| Date Issued | 2014-07-28 (iso8601) |
| Note | This is the publisher’s final pdf. The published article is copyrighted by the American Institute of Physics Publishing and can be found at: http://scitation.aip.org/content/aip/journal/apl. |
| Abstract | We examined sub-nanosecond time-scale charge carrier dynamics in crystalline films of a functionalized anthradithiophene (ADT) donor (D) with three different acceptor (A) molecules. A four-fold enhancement in ultrafast charge carrier separation efficiency was observed in D/A blends with a fullerene acceptor added at 7–10 wt. % concentrations, whereas a gradual decrease in peak photocurrent amplitude with acceptor concentration was observed with functionalized pentacene and indenofluorene acceptors. The results were directly correlated with the ADT-tri(ethylsilyl)ethynyl-F donor crystallinity. In the best-performing blends, the presence of crystalline acceptor domains was also established. |
| Genre | Article |
| Identifier | Paudel, K., Johnson, B., Thieme, M., Haley, M. M., Payne, M. M., Anthony, J. E., & Ostroverkhova, O. (2014). Enhanced charge photogeneration promoted by crystallinity in small-molecule donor-acceptor bulk heterojunctions. Applied Physics Letters, 105(4), 043301. doi:10.1063/1.4891758 |
