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Thermal and Nonthermal Effects in Plasmon‐Mediated Electrochemistry at Nanostructured Ag Electrodes
Author(s) -
Ou Weihui,
Zhou Binbin,
Shen Junda,
Lo Tsz Wing,
Lei Dangyuan,
Li Shengliang,
Zhong Jing,
Li Yang Yang,
Lu Jian
Publication year - 2020
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.202001152
Subject(s) - photothermal therapy , plasmon , electrode , photothermal effect , electrochemistry , surface plasmon resonance , nanotechnology , thermal management of electronic devices and systems , materials science , surface plasmon , thermal , range (aeronautics) , chemistry , chemical physics , nanoparticle , optoelectronics , physics , mechanical engineering , meteorology , engineering , composite material
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.