Plasmon-Enhanced Chemical Conversion Using Copper Selenide Nanoparticles

Xing Yee Gan, Emily L. Keller, Christopher L. Warkentin, Scott E. Crawford, Renee R. Frontiera, Jill E. Millstone

Research output: Contribution to journalArticlepeer-review

53 Scopus citations

Abstract

The syntheses, properties, and broad utility of noble metal plasmonic nanomaterials are now well-established. To capitalize on this exceptional utility, mitigate its cost, and potentially expand it, non-noble metal plasmonic materials have become a topic of widespread interest. As new plasmonic materials come online, it is important to understand and assess their ability to generate comparable or complementary plasmonic properties to their noble metal counterparts, including as both sensing and photoredox materials. Here, we study plasmon-driven chemistry on degenerately doped copper selenide (Cu 2-x Se) nanoparticles. In particular, we observe plasmon-driven dimerization of 4-nitrobenzenethiol to 4,4′-dimercaptoazobenzene on Cu 2-x Se surfaces with yields comparable to those observed from noble metal nanoparticles. Overall, our results indicate that doped semiconductor nanoparticles are promising for light-driven chemistry technologies.

Original languageEnglish (US)
Pages (from-to)2384-2388
Number of pages5
JournalNano letters
Volume19
Issue number4
DOIs
StatePublished - Apr 10 2019

Bibliographical note

Funding Information:
This work was supported by the Defense Threat Reduction Agency (Grant HDTRA1-16-1-0044, X.Y.G., J.E.M.) and the Air Force Office of Scientific Research (AFOSR Award No. FA9550-15-1-0022, E.L.K., C.L.W., R.R.F.). X.Y.G. acknowledges previous support from Pittsburgh Quantum Institute Graduate Research Fellowship and current support from University of Pittsburgh Graduate Excellence Fellowship; E.L.K. acknowledges support from University of Minnesota Doctoral Dissertation Fellowship; S.E.C. acknowledges support from National Energy Technology Laboratory Professional Internship Program. We thank Dr. Michelle Ward for the generous access to the ICP-OES.

Publisher Copyright:
© 2019 American Chemical Society.

Keywords

  • Non-noble metal plasmonics
  • SERS
  • copper selenide
  • hot carriers
  • plasmonic photocatalysis
  • plasmonic photoredox reactions

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