Thermal and Nonthermal Effects in Plasmon-Mediated Electrochemistry at Nanostructured Ag Electrodes

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journal

2 Scopus Citations
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Author(s)

  • Weihui Ou
  • Binbin Zhou
  • Tsz Wing Lo
  • Shengliang Li
  • Jing Zhong

Detail(s)

Original languageEnglish
Pages (from-to)6790–6793
Journal / PublicationAngewandte Chemie - International Edition
Volume59
Issue number17
Online published10 Feb 2020
Publication statusPublished - 20 Apr 2020

Abstract

Hot carriers (HCs) and thermal effects, stemming from plasmon decays, are crucial for most plasmonic applications. However, quantifying these two effects remains extremely challenging due to the experimental difficulty in accurately measuring the temperature at reaction sites. Herein, we provide a novel strategy to disentangle HCs from photothermal effects based on the different traits of heat dissipation (long range) and HCs transport (short range), and quantitatively uncover the dominant and potential-dependent role of photothermal effect by investigating the rapid- and slow-response currents in plasmon-mediated electrochemistry at nanostructured Ag electrode. Furthermore, the plasmoelectric surface potential is found to contribute to the rapid-response currents, which is absent in the previous studies.

Research Area(s)

  • electrochemistry, hot carriers, plasmoelectric effects, surface plasmon resonance, thermal effect, HOT-CARRIER, SURFACES

Citation Format(s)

Thermal and Nonthermal Effects in Plasmon-Mediated Electrochemistry at Nanostructured Ag Electrodes. / Ou, Weihui; Zhou, Binbin; Shen, Junda; Lo, Tsz Wing; Lei, Dangyuan; Li, Shengliang; Zhong, Jing; Li, Yang Yang; Lu, Jian.

In: Angewandte Chemie - International Edition, Vol. 59, No. 17, 20.04.2020, p. 6790–6793.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journal