Dynamically Modulating the Surface Plasmon Resonance of Doped Semiconductor Nanocrystals
| Title | Dynamically Modulating the Surface Plasmon Resonance of Doped Semiconductor Nanocrystals |
| Publication Type | Journal Article |
| Year of Publication | 2011 |
| Authors | Guillermo Garcia, Raffaella Buonsanti, Evan L Runnerstrom, Rueben J Mendelsberg, Anna Llordes, André Anders, Thomas J Richardson, Delia J Milliron |
| Journal | Nano Letters |
| Volume | 11 |
| Issue | 10 |
| Pagination | 4415 - 4420 |
| Date Published | 10/2011 |
| ISSN | 1530-6984 |
| Keywords | doping, indium tin oxide, nanocrystal, spectroelectrochemistry, surface plasmon |
| Abstract | Localized surface plasmon absorption features arise at high doping levels in semiconductor nanocrystals, appearing in the near-infrared range. Here we show that the surface plasmons of tin-doped indium oxide nanocrystal films can be dynamically and reversibly tuned by postsynthetic electrochemical modulation of the electron concentration. Without ion intercalation and the associated material degradation, we induce a > 1200 nm shift in the plasmon wavelength and a factor of nearly three change in the carrier density. |
| DOI | 10.1021/nl202597n |
| Short Title | Nano Lett. |
