We thank Lynn Peyser for help with the AFM characterization. This work was supported by the Materials Research Division of the National Science Foundation (grant # 0138391).
Medium Effect on the Electron Cooling Dynamics in Gold Nanorods and Truncated Tetrahedra†
Article first published online: 7 MAR 2003
© 2003 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Volume 15, Issue 5, pages 393–396, March, 2003
How to Cite
Link, S., Hathcock, D.J., Nikoobakht, B. and El-Sayed, M.A. (2003), Medium Effect on the Electron Cooling Dynamics in Gold Nanorods and Truncated Tetrahedra. Adv. Mater., 15: 393–396. doi: 10.1002/adma.200390088
- Issue published online: 7 MAR 2003
- Article first published online: 7 MAR 2003
- Manuscript Received: 9 OCT 2002
- Energy transfer;
- Media-dependent properties;
- Nanorods, gold;
- Relaxation dynamics
A study on the electron relaxation dynamics and thermal cooling of colloidal gold nanoparticles (see Figure) in air and water finds that the local energy exchange with the surrounding medium occurs on the picosecond time scale, comparable with the electron–phonon relaxation, while a slow heat dissipation by water ensures that the particles remain heated for hundreds of picoseconds.