Plasmon–Polaron Coupling in Conjugated Polymer on Infrared Nanoantennas
Date of Issue2015-07-13
School of Physical and Mathematical Sciences
Centre for Disruptive Photonic Technologies
We propose and demonstrate a novel type of coupling between polarons in a conjugated polymer and localized 11 surface plasmons in infrared (IR) nanoantennas. The near-field interaction between plasmons and polarons is revealed by 12 polarized photoinduced absorption measurements, probing mid-IR polaron transitions, and infrared-active vibrational modes of 13 the polymer, which directly gauge the density of photogenerated charge carriers. This work proves the possibility of tuning the 14 polaronic properties of organic semiconductors with plasmonic nanostructures.
Localized surface plasmons
© 2015 American Chemical Society. This is the author created version of a work that has been peer reviewed and accepted for publication by Nano Letters, American Chemical Society. It incorporates referee’s comments but changes resulting from the publishing process, such as copyediting, structural formatting, may not be reflected in this document. The published version is available at: [http://dx.doi.org/10.1021/acs.nanolett.5b01760].