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Title: Snapshot Hyperspectral Imaging (SHI) for Revealing Irreversible and Heterogeneous Plasmonic Processes

Abstract

Plasmon-mediated processes provide unique opportunities for selective photocatalysis, photovoltaics, and electrochemistry. Determining the influence of particle heterogeneity is an unsolved problem because often such processes introduce irreversible changes to the nanocatalysts and/or their surroundings. The challenge lies in monitoring heterogeneous nonequilibrium dynamics via the slow, serial methods that are intrinsic to almost all spectral acquisition methods with suitable spatial and/or spectral resolution. Here, we present a new metrology, snapshot hyperspectral imaging (SHI), that facilitates in situ readout of the tube lens image and first-order diffraction image of the dark-field scattering from many individual plasmonic nanoparticles to extract their respective spectra simultaneously. Evanescent wave excitation with a supercontinuum laser enabled signal-to-noise ratios greater than 100 with a time resolution of only 1 ms. Throughput of ~100 simultaneous spectra was achieved with a highly ordered nanoparticle array, yielding a spectral resolution of 0.21 nm/pixel. Additionally, an alternative dark-field excitation geometry utilized a combination of a supercontinuum laser and a reflecting objective for polarization-controlled SHI. Using a simplified version of SHI, we temporally resolve on the millisecond time scale the heterogeneous kinetics of an electrochemical surface redox reaction for many individual gold nanoparticles simultaneously.

Authors:
 [1];  [1];  [1];  [1];  [2]; ORCiD logo [1]; ORCiD logo [3];  [3]; ORCiD logo [1]; ORCiD logo [3]; ORCiD logo [4]; ORCiD logo [4]
  1. Rice Univ., Houston, TX (United States). Dept. of Chemistry
  2. Rice Univ., Houston, TX (United States). Dept. of Electrical and Computer Engineering, Lab. for Nanophotonics, Smalley-Curl Inst.
  3. Univ. of Melbourne (Australia). School of Chemistry and Bio21 Inst.
  4. Rice Univ., Houston, TX (United States). Dept. of Chemistry, and Dept. of Electrical and Computer Engineering, Lab. for Nanophotonics, Smalley-Curl Inst.
Publication Date:
Research Org.:
Rice Univ., Houston, TX (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
OSTI Identifier:
1426324
Alternate Identifier(s):
OSTI ID: 1508754
Grant/Contract Number:  
SC0016534
Resource Type:
Journal Article: Published Article
Journal Name:
Journal of Physical Chemistry. C
Additional Journal Information:
Journal Volume: 122; Journal Issue: 12; Journal ID: ISSN 1932-7447
Publisher:
American Chemical Society
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY

Citation Formats

Kirchner, Silke R., Smith, Kyle W., Hoener, Benjamin S., Collins, Sean S. E., Wang, Wenxiao, Cai, Yi-Yu, Kinnear, Calum, Zhang, Heyou, Chang, Wei-Shun, Mulvaney, Paul, Landes, Christy F., and Link, Stephan. Snapshot Hyperspectral Imaging (SHI) for Revealing Irreversible and Heterogeneous Plasmonic Processes. United States: N. p., 2018. Web. doi:10.1021/acs.jpcc.8b01398.
Kirchner, Silke R., Smith, Kyle W., Hoener, Benjamin S., Collins, Sean S. E., Wang, Wenxiao, Cai, Yi-Yu, Kinnear, Calum, Zhang, Heyou, Chang, Wei-Shun, Mulvaney, Paul, Landes, Christy F., & Link, Stephan. Snapshot Hyperspectral Imaging (SHI) for Revealing Irreversible and Heterogeneous Plasmonic Processes. United States. doi:10.1021/acs.jpcc.8b01398.
Kirchner, Silke R., Smith, Kyle W., Hoener, Benjamin S., Collins, Sean S. E., Wang, Wenxiao, Cai, Yi-Yu, Kinnear, Calum, Zhang, Heyou, Chang, Wei-Shun, Mulvaney, Paul, Landes, Christy F., and Link, Stephan. Thu . "Snapshot Hyperspectral Imaging (SHI) for Revealing Irreversible and Heterogeneous Plasmonic Processes". United States. doi:10.1021/acs.jpcc.8b01398.
@article{osti_1426324,
title = {Snapshot Hyperspectral Imaging (SHI) for Revealing Irreversible and Heterogeneous Plasmonic Processes},
author = {Kirchner, Silke R. and Smith, Kyle W. and Hoener, Benjamin S. and Collins, Sean S. E. and Wang, Wenxiao and Cai, Yi-Yu and Kinnear, Calum and Zhang, Heyou and Chang, Wei-Shun and Mulvaney, Paul and Landes, Christy F. and Link, Stephan},
abstractNote = {Plasmon-mediated processes provide unique opportunities for selective photocatalysis, photovoltaics, and electrochemistry. Determining the influence of particle heterogeneity is an unsolved problem because often such processes introduce irreversible changes to the nanocatalysts and/or their surroundings. The challenge lies in monitoring heterogeneous nonequilibrium dynamics via the slow, serial methods that are intrinsic to almost all spectral acquisition methods with suitable spatial and/or spectral resolution. Here, we present a new metrology, snapshot hyperspectral imaging (SHI), that facilitates in situ readout of the tube lens image and first-order diffraction image of the dark-field scattering from many individual plasmonic nanoparticles to extract their respective spectra simultaneously. Evanescent wave excitation with a supercontinuum laser enabled signal-to-noise ratios greater than 100 with a time resolution of only 1 ms. Throughput of ~100 simultaneous spectra was achieved with a highly ordered nanoparticle array, yielding a spectral resolution of 0.21 nm/pixel. Additionally, an alternative dark-field excitation geometry utilized a combination of a supercontinuum laser and a reflecting objective for polarization-controlled SHI. Using a simplified version of SHI, we temporally resolve on the millisecond time scale the heterogeneous kinetics of an electrochemical surface redox reaction for many individual gold nanoparticles simultaneously.},
doi = {10.1021/acs.jpcc.8b01398},
journal = {Journal of Physical Chemistry. C},
issn = {1932-7447},
number = 12,
volume = 122,
place = {United States},
year = {2018},
month = {3}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record at 10.1021/acs.jpcc.8b01398

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