Probing Hot Electron Behaviors by Surface-Enhanced Raman Spectroscopy

Summary: Light-excited energetic electrons, or so-called hot electrons (HEs), in plasmonic metal nanostructures have received much attention in the past few years. Plasmonic metal nanostructures, acting as light absorbers with higher efficiency and adjustability than dye molecules and inorganic semi...

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Main Authors: Jing-Liang Yang, Hong-Jia Wang, Hua Zhang, Zhong-Qun Tian, Jian-Feng Li
Format: Article
Language:English
Published: Elsevier 2020-09-01
Series:Cell Reports Physical Science
Online Access:http://www.sciencedirect.com/science/article/pii/S2666386420301958
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author Jing-Liang Yang
Hong-Jia Wang
Hua Zhang
Zhong-Qun Tian
Jian-Feng Li
author_facet Jing-Liang Yang
Hong-Jia Wang
Hua Zhang
Zhong-Qun Tian
Jian-Feng Li
author_sort Jing-Liang Yang
collection DOAJ
description Summary: Light-excited energetic electrons, or so-called hot electrons (HEs), in plasmonic metal nanostructures have received much attention in the past few years. Plasmonic metal nanostructures, acting as light absorbers with higher efficiency and adjustability than dye molecules and inorganic semiconductors, can generate HEs under specific light conditions. However, the overall efficiency of the plasmonic systems remain unsatisfactory. Therefore, it is important to study the generation and transfer processes of plasmon-induced HEs, which are necessary for efficient plasmon-enhanced applications. In this review, we summarize the basic concepts and mechanisms of HE generation and transportation, then highlight the use of in situ surface-enhanced Raman spectroscopy (SERS) as a probe for HE-induced chemical reactions. We also discuss the opportunities and remaining challenges in promoting fundamental understanding of, and practical applications for, HEs.
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spelling doaj.art-8cac78f00de3465d983eb8fa8bebe92a2022-12-22T03:00:06ZengElsevierCell Reports Physical Science2666-38642020-09-0119100184Probing Hot Electron Behaviors by Surface-Enhanced Raman SpectroscopyJing-Liang Yang0Hong-Jia Wang1Hua Zhang2Zhong-Qun Tian3Jian-Feng Li4College of Physical Science and Technology, College of Materials, State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, College of Energy, Fujian Key Laboratory of Advanced Materials, Xiamen University, Xiamen 361005, ChinaCollege of Physical Science and Technology, College of Materials, State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, College of Energy, Fujian Key Laboratory of Advanced Materials, Xiamen University, Xiamen 361005, ChinaCollege of Physical Science and Technology, College of Materials, State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, College of Energy, Fujian Key Laboratory of Advanced Materials, Xiamen University, Xiamen 361005, China; Corresponding authorCollege of Physical Science and Technology, College of Materials, State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, College of Energy, Fujian Key Laboratory of Advanced Materials, Xiamen University, Xiamen 361005, ChinaCollege of Physical Science and Technology, College of Materials, State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, College of Energy, Fujian Key Laboratory of Advanced Materials, Xiamen University, Xiamen 361005, China; Corresponding authorSummary: Light-excited energetic electrons, or so-called hot electrons (HEs), in plasmonic metal nanostructures have received much attention in the past few years. Plasmonic metal nanostructures, acting as light absorbers with higher efficiency and adjustability than dye molecules and inorganic semiconductors, can generate HEs under specific light conditions. However, the overall efficiency of the plasmonic systems remain unsatisfactory. Therefore, it is important to study the generation and transfer processes of plasmon-induced HEs, which are necessary for efficient plasmon-enhanced applications. In this review, we summarize the basic concepts and mechanisms of HE generation and transportation, then highlight the use of in situ surface-enhanced Raman spectroscopy (SERS) as a probe for HE-induced chemical reactions. We also discuss the opportunities and remaining challenges in promoting fundamental understanding of, and practical applications for, HEs.http://www.sciencedirect.com/science/article/pii/S2666386420301958
spellingShingle Jing-Liang Yang
Hong-Jia Wang
Hua Zhang
Zhong-Qun Tian
Jian-Feng Li
Probing Hot Electron Behaviors by Surface-Enhanced Raman Spectroscopy
Cell Reports Physical Science
title Probing Hot Electron Behaviors by Surface-Enhanced Raman Spectroscopy
title_full Probing Hot Electron Behaviors by Surface-Enhanced Raman Spectroscopy
title_fullStr Probing Hot Electron Behaviors by Surface-Enhanced Raman Spectroscopy
title_full_unstemmed Probing Hot Electron Behaviors by Surface-Enhanced Raman Spectroscopy
title_short Probing Hot Electron Behaviors by Surface-Enhanced Raman Spectroscopy
title_sort probing hot electron behaviors by surface enhanced raman spectroscopy
url http://www.sciencedirect.com/science/article/pii/S2666386420301958
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