期刊
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
卷 144, 期 4, 页码 1663-1671出版社
AMER CHEMICAL SOC
DOI: 10.1021/jacs.1c10526
关键词
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资金
- CNRS Energy Unit (Cellule Energie) through the project PEPS-CHEAP
- United States-Israel Binational Science Foundation (BSF)
- Nanoscale and Quantum Phenomena Institute at Ohio University
- National Key Research and Development Program of China [2019YFB2203400]
- 111 Project [B20030]
- Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) under Germany's Excellence Strategy -The Berlin Mathematics Research Center MATH+ [EXC-2046/1, 390685689]
- Chinese Scholarship Council Fellowship
- LabEx AMADEus [ANR-10LABX-42, ANR-10IDEX-03-02]
- Investissements d'Avenir program of the French government
- Spanish Ministerio de Economia y Competitividad [PID2020-113704RB-I00]
- Xunta de Galicia/FEDER [IN607A 2018/5]
- Xunta de Galicia/FEDER (Centro Singular de Investigacion de Galicia) [ED431G 2019-06]
- FEDER through the program Interreg V-A Espana-Portugal (POCTEP) [0712_ACUINANO_1_E, 0624_2IQBIONEURO_6_E]
- European Union (European Regional Development Fund ERDF) [ERDF: 1.102.531]
Mastering chirality at the nanoscale is important for scientists in various fields. Recently, researchers have proposed the use of chiral plasmonic nanostructures in photocatalysis to drive polarization-dependent photochemistry. In this study, inorganic nanometric chiral templates were used to assemble gold and titanium dioxide nanoparticles, leading to the formation of plasmon-based photocatalysts with polarization-dependent reactivity. This approach opens up new possibilities for applications in chirality and photocatalysis, particularly in plasmon-induced chiral photochemistry.
Mastering the manipulation of chirality at the nanoscale has long been a priority for chemists, physicists, and materials scientists, given its importance in the biochemical processes of the natural world and in the development of novel technologies. In this vein, the formation of novel metamaterials and sensing platforms resulting from the synergic combination of chirality and plasmonics has opened new avenues in nano-optics. Recently, the implementation of chiral plasmonic nanostructures in photocatalysis has been proposed theoretically as a means to drive polarization-dependent photochemistry. In the present work, we demonstrate that the use of inorganic nanometric chiral templates for the controlled assembly of Au and TiO2 nanoparticles leads to the formation of plasmon-based photocatalysts with polarization-dependent reactivity. The formation of plasmonic assemblies with chiroptical activities induces the asymmetric formation of hot electrons and holes generated via electromagnetic excitation, opening the door to novel photocatalytic and optoelectronic features. More precisely, we demonstrate that the reaction yield can be improved when the helicity of the circularly polarized light used to activate the plasmonic component matches the handedness of the chiral substrate. Our approach may enable new applications in the fields of chirality and photocatalysis, particularly toward plasmon-induced chiral photochemistry.
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