TY - JOUR
T1 - Optical and Physical Probing of Thermal Processes in Semiconductor and Plasmonic Nanocrystals
AU - Diroll, Benjamin T.
AU - Kirschner, Matthew S.
AU - Guo, Peijun
AU - Schaller, Richard D.
N1 - Funding Information:
The authors gratefully acknowledge contributions of collaborators such as George Schatz, Dmitri Talapin, Michael Wasiewski, Lin Chen, Robert Chang, Mercouri Kanatzidis, and Xiaoyi Zhang. Particular thanks go to former graduate students Daniel Hannah, Clare Rowland, and Angela Chang. This work was performed, in part, at the Center for Nanoscale Materials, a US Department of Energy Office of Science User Facility, and supported by the US Department of Energy, Office of Science, under contract DE-AC02-06CH11357. Graduate student support from the NSF Graduate Student Fellowship Program is gratefully acknowledged. We acknowledge support from the Ultrafast Initiative of the US Department of Energy, Office of Science, Office of Basic Energy Sciences, through Argonne National Laboratory under contract DE-AC02-06CH11357.
Publisher Copyright:
© 2019 by Annual Reviews. All rights reserved.
PY - 2019/6/14
Y1 - 2019/6/14
N2 - This article reviews thermal properties of semiconductor and emergent plasmonic nanomaterials, focusing on mechanisms through which hot carriers and phonons are produced and dissipated as well as the related impacts on optoelectronic properties. Elevated equilibrium temperatures, of particular relevance for implementation of nanomaterials in devices, affect absorptive and radiative transitions as well as emission efficiency that can present reversible and irreversible changes with temperature. In noble metal or doped semiconductor/insulator nanomaterials, hot carriers and lattice heating can substantially influence localized surface plasmon resonances and yield large ultrafast changes in transmission or strongly oscillatory coherences. Transient optical and diffraction characterizations enable nonequilibrium investigations of phonon dynamics and cooling such as lattice expansion and crystal phase stability. Timescales of nanoparticle thermalization with surroundings and transport of heat within films of such materials are also discussed.
AB - This article reviews thermal properties of semiconductor and emergent plasmonic nanomaterials, focusing on mechanisms through which hot carriers and phonons are produced and dissipated as well as the related impacts on optoelectronic properties. Elevated equilibrium temperatures, of particular relevance for implementation of nanomaterials in devices, affect absorptive and radiative transitions as well as emission efficiency that can present reversible and irreversible changes with temperature. In noble metal or doped semiconductor/insulator nanomaterials, hot carriers and lattice heating can substantially influence localized surface plasmon resonances and yield large ultrafast changes in transmission or strongly oscillatory coherences. Transient optical and diffraction characterizations enable nonequilibrium investigations of phonon dynamics and cooling such as lattice expansion and crystal phase stability. Timescales of nanoparticle thermalization with surroundings and transport of heat within films of such materials are also discussed.
KW - Optical probe
KW - Phonon dynamics
KW - Photoluminescence
KW - Plasmon
KW - Semiconductor nanocrystal
KW - Thermal excitation
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U2 - 10.1146/annurev-physchem-042018-052639
DO - 10.1146/annurev-physchem-042018-052639
M3 - Review article
C2 - 31112459
AN - SCOPUS:85067191004
VL - 70
SP - 353
EP - 377
JO - Annual Review of Physical Chemistry
JF - Annual Review of Physical Chemistry
SN - 0066-426X
ER -