In Situ Raman Probing of Hot-Electron Transfer at Gold-Graphene Interfaces with Atomic Layer Accuracy.

Autor: Yang JL; College of Physical Science and Technology, College of Energy, State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, College of Materials, Fujian Key Laboratory of Advanced Materials, Xiamen University, Xiamen, 361005, China., Wang HJ; College of Physical Science and Technology, College of Energy, State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, College of Materials, Fujian Key Laboratory of Advanced Materials, Xiamen University, Xiamen, 361005, China., Zhu Z; College of Physical Science and Technology, College of Energy, State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, College of Materials, Fujian Key Laboratory of Advanced Materials, Xiamen University, Xiamen, 361005, China., Yue MF; College of Physical Science and Technology, College of Energy, State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, College of Materials, Fujian Key Laboratory of Advanced Materials, Xiamen University, Xiamen, 361005, China., Yang WM; College of Physical Science and Technology, College of Energy, State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, College of Materials, Fujian Key Laboratory of Advanced Materials, Xiamen University, Xiamen, 361005, China., Zhang XG; Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, 453007, China., Ruan X; School of Physics and Technology, Center for Nanoscience and Nanotechnology, and Key Laboratory of Artificial Micor- and Nano- structures of Ministry of Education, Wuhan University, Wuhan, 430072, China., Guan Z; School of Physics and Technology, Center for Nanoscience and Nanotechnology, and Key Laboratory of Artificial Micor- and Nano- structures of Ministry of Education, Wuhan University, Wuhan, 430072, China., Yang ZL; College of Physical Science and Technology, College of Energy, State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, College of Materials, Fujian Key Laboratory of Advanced Materials, Xiamen University, Xiamen, 361005, China., Cai W; College of Physical Science and Technology, College of Energy, State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, College of Materials, Fujian Key Laboratory of Advanced Materials, Xiamen University, Xiamen, 361005, China., Wu YF; College of Physical Science and Technology, College of Energy, State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, College of Materials, Fujian Key Laboratory of Advanced Materials, Xiamen University, Xiamen, 361005, China., Fan FR; College of Physical Science and Technology, College of Energy, State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, College of Materials, Fujian Key Laboratory of Advanced Materials, Xiamen University, Xiamen, 361005, China., Dong JC; College of Physical Science and Technology, College of Energy, State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, College of Materials, Fujian Key Laboratory of Advanced Materials, Xiamen University, Xiamen, 361005, China., Zhang H; College of Physical Science and Technology, College of Energy, State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, College of Materials, Fujian Key Laboratory of Advanced Materials, Xiamen University, Xiamen, 361005, China., Xu H; School of Physics and Technology, Center for Nanoscience and Nanotechnology, and Key Laboratory of Artificial Micor- and Nano- structures of Ministry of Education, Wuhan University, Wuhan, 430072, China., Tian ZQ; College of Physical Science and Technology, College of Energy, State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, College of Materials, Fujian Key Laboratory of Advanced Materials, Xiamen University, Xiamen, 361005, China., Li JF; College of Physical Science and Technology, College of Energy, State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, College of Materials, Fujian Key Laboratory of Advanced Materials, Xiamen University, Xiamen, 361005, China.; College of Optical and Electronic Technology, China Jiliang University, Hangzhou, 310018, China.
Jazyk: angličtina
Zdroj: Angewandte Chemie (International ed. in English) [Angew Chem Int Ed Engl] 2022 Jan 26; Vol. 61 (5), pp. e202112749. Date of Electronic Publication: 2021 Dec 15.
DOI: 10.1002/anie.202112749
Abstrakt: Plasmonic metals under photoexcitation can generate energetic hot electrons to directly induce chemical reactions. However, the capability and fundamental insights of the transportation of these hot electrons at plasmonic metal-2D material interfaces remain unclear. Herein, hot-electron transfer at Au-graphene interfaces has been in situ studied using surface-enhanced Raman spectroscopy (SERS) with atomic layer accuracy. Combining in situ SERS studies with density functional theory calculations, it is proved that hot electrons can be injected from plasmonic Au nanoparticles to graphene and directly penetrate graphene to trigger photocatalytic reactions. With increasing graphene layers, the transportation of hot electrons decays rapidly and would be completely blocked after five layers of graphene. Moreover, the transfer of hot electrons can be modulated by applying an external electric field, and the hot-electron transfer efficiency under electrochemical conditions is improved by over three times in the presence of a monolayer of graphene.
(© 2021 Wiley-VCH GmbH.)
Databáze: MEDLINE
Externí odkaz: