Thermal and Nonthermal Effects in Plasmon‐Mediated Electrochemistry at Nanostructured Ag Electrodes
| Autor: | Jian Lu, Junda Shen, Binbin Zhou, Shengliang Li, Jing Zhong, Tsz Wing Lo, Dangyuan Lei, Yang Yang Li, Weihui Ou |
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| Rok vydání: | 2020 |
| Předmět: |
Materials science
010405 organic chemistry Photothermal effect General Medicine General Chemistry Photothermal therapy 010402 general chemistry Electrochemistry 01 natural sciences Catalysis 0104 chemical sciences Chemical physics Thermal Electrode Surface plasmon resonance Science technology and society Plasmon |
| Zdroj: | Angewandte Chemie International Edition. 59:6790-6793 |
| ISSN: | 1521-3773 1433-7851 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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