| Title | Polymer Side Chain Modification Alters Phase Separation in Ferroelectric-Semiconductor Polymer Blends for Organic Memory |
| Publication Type | Journal Article |
| Year of Publication | 2014 |
| Authors | G.M. Su, Eunhee Lim, Andrew R. Jacobs, E.J. Kramer, and M.L. Chabinyc |
| Journal | ACS MACRO LETTERS |
| Volume | 3 |
| Pagination | 1244-1248 |
| Date Published | DEC |
| ISSN | 2161-1653 |
| Abstract | Side chain modification of a semiconducting polythiophene changes the resulting phase separation length scales when blended with a ferroelectric polymer for use in organic ferroelectric resistive switches. The domain size of the semiconducting portion of blends of poly[3-(ethyl- 5-pentanoate)thiophene-2,5-diyl] (P3EPT) and poly(vinylidene fluoride-co-trifluoroethylene) (PVDF-TrFE) in thin film blends are smaller than previously reported and easily controllable in size through simple tuning of the weight fraction of the semiconducting polymer. Furthermore, P3EPT has a relatively high degree of crystallinity and bimodal crystallite orientations, as probed by wide-angle X-ray scattering. Resistive switches fabricated from blends of P3EPT and PVDF-TrFE show memristive switching behavior over a wide range of polythiophene content and good ON/OFF ratios. |
| DOI | 10.1021/mz5005647 |
