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Plasmonic nanostructures convert photon energy (light) into other forms of energy, including chemical energy (through the production of high energy, or "hot," electrons and holes) and thermal energy (leading to elevated temperatures at the nanoparticle surface).
We are interested in studying the complex interplay among these various decay mechanisms in order to better understand how to harness the power of plasmons.
Representative publications
Representative publications
C.A. West, S.A. Lee, J. Shooter, E.K. Searles, H.J. Goldwyn, K.A. Willets, S. Link, D.J. Masiello. “Nonlinear effects in single-particle photothermal imaging.” J. Chem. Phys. 158, 024202 (2023)
P.A. Reinhardt, A.P. Crawford, C.A. West, G. Delong, S. Link, D.J. Masiello, K.A. Willets. “Towards Quantitative Nanothermometry Using Single-Molecule Counting.” J. Phys. Chem. B. 125, 12197 (2021).
S.A. Hosseini Jebeli, C. West, S.A. Lee, H.J. Goldwyn, C.R. Bilchak, Z. Fakhraai, K.A. Willets, S. Link, D.J. Masiello. “Wavelength-Dependent Photothermal Imaging Probes Nanoscale Temperature Differences among Subdiffraction Coupled Plasmonic Nanorods.” Nano Lett. 21, 5386 (2021).
U. Bhattacharjee, C. West, S.A. Hosseini Jebeli, H.J. Goldwyn, X-T Kong, Z. Hu, E.K. Beutler, W-S Chang, K.A. Willets, S. Link, D.J. Masiello. “Active far-field control of the thermal near-field via plasmon hybridization.” ACS Nano. 13, 9655 (2019).
X. Cheng, T.P. Anthony, C.A. West, Z. Hu, V. Sundaresan, A.J. McLeod, D.J. Masiello, K.A. Willets. “Plasmon heating promotes ligand reorganization on single gold nanorods.” J. Phys. Chem. Lett. 10, 1394 (2019).
Y. Yu, K. Wijesekara, X.X. Xi, K.A. Willets. “Quantifying Wavelength-Dependent Plasmonic Hot Carrier Energy Distributions at Metal/Semiconductor Interfaces.” ACS Nano. 13, 3629 (2019).
Y. Yu, J.D. Williams, K.A. Willets. “Quantifying Photothermal Heating at Plasmonic Nanoparticles by Scanning Electrochemical Microscopy.” Faraday Discussions. 210, 29 (2018).
Y. Yu, V. Sundaresan, K.A. Willets. “Hot Carriers vs. Thermal Effects: Resolving the Enhancement Mechanisms for Plasmon-Mediated Photoelectrochemical Reactions.” J. Phys. Chem. C. 122, 5040 (2018).
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