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Self-Constructed Mu...
Self-Constructed Multiple Plasmonic Hotspots on an Individual Fractal to Amplify Broadband Hot Electron Generation
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- Wang, Xi (författare)
- School of Materials Science and Engineering, Tianjin University, Tianjin 300350, P.R. China; Key Laboratory of Efficient Utilization of Low and Medium Grade Energy, Ministry of Education, Tianjin University, Tianjin 300350, P.R. China
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- Liu, Changxu (författare)
- Hybrid Nanosystems, Nanoinstitute Munich, Faculty of Physics, Ludwig-Maximilians-Universität München, D-80539 München, Germany
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- Gao, Congcong (författare)
- School of Materials Science and Engineering, Tianjin University, Tianjin 300350, P.R. China
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- Yao, Kaili (författare)
- School of Materials Science and Engineering, Tianjin University, Tianjin 300350, P.R. China
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- Mousavi Masouleh, Seyed Shayan (författare)
- Department of Materials Science and Engineering, McMaster University, 1280 Main Street West, Hamilton, Ontario L8S 4L7, Canada
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- Berté, Rodrigo (författare)
- Hybrid Nanosystems, Nanoinstitute Munich, Faculty of Physics, Ludwig-Maximilians-Universität München, D-80539 München, Germany
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- Ren, Haoran (författare)
- Hybrid Nanosystems, Nanoinstitute Munich, Faculty of Physics, Ludwig-Maximilians-Universität München, D-80539 München, Germany
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- de S. Menezes, Leonardo (författare)
- Hybrid Nanosystems, Nanoinstitute Munich, Faculty of Physics, Ludwig-Maximilians-Universität München, D-80539 München, Germany; Departamento de Física, Universidade Federal de Pernambuco, 50670-901 Recife-PE, Brazil
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- Cortés, Emiliano (författare)
- Hybrid Nanosystems, Nanoinstitute Munich, Faculty of Physics, Ludwig-Maximilians-Universität München, D-80539 München, Germany
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- Bicket, Isobel C. (författare)
- Department of Materials Science and Engineering, McMaster University, 1280 Main Street West, Hamilton, Ontario L8S 4L7, Canada
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- Wang, Haiyu (författare)
- School of Materials Science and Engineering, Tianjin University, Tianjin 300350, P.R. China
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- Li, Ning (författare)
- School of Materials Science and Engineering, Tianjin University, Tianjin 300350, P.R. China
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- Zhang, Zhenglong (författare)
- School of Physics and Information Technology, Shaanxi Normal University, Xi’an 710061, P R. China
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- Li, Ming (författare)
- School of Materials Science and Engineering, State Key Laboratory for Power Metallurgy, Central South University, Changsha, Hunan 410083, P.R. China
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- Xie, Wei (författare)
- Key Lab of Advanced Energy Materials Chemistry (Ministry of Education), Renewable Energy Conversion and Storage Center, College of Chemistry, Nankai University, Weijin Road 94, Tianjin 300071, P.R. China
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- Yu, Yifu (författare)
- Department of Chemistry, School of Science, Institute of Molecular Plus, Tianjin University, Tianjin, 300072, P. R. China
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- Fang, Yurui (författare)
- Key Laboratory of Materials Modification by Laser, Electron, and Ion Beams (Ministry of Education), School of Physics, Dalian University of Technology, Dalian 116024, P.R. China
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- Zhang, Shunping (författare)
- School of Physics and Technology, Center for Nanoscience and Nanotechnology, and Key Laboratory of Artificial Micro- and Nano-structures of Ministry of Education, Wuhan University, Wuhan 430072, P.R. China
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- Xu, Hongxing (författare)
- School of Physics and Technology, Center for Nanoscience and Nanotechnology, and Key Laboratory of Artificial Micro- and Nano-structures of Ministry of Education, Wuhan University, Wuhan 430072, P.R. China; The Institute for Advanced Studies, Wuhan University, Wuhan 430072, P.R. China
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- Vomiero, Alberto (författare)
- Luleå tekniska universitet,Materialvetenskap,Department of Molecular Sciences and Nanosystems, Ca’ Foscari University of Venice, I-30172 Venezia Mestre, Italy
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- Liu, Yongchang (författare)
- State Key Lab of Hydraulic Engineering Simulation and Safety, School of Materials Science and Engineering, Tianjin University, Tianjin 300354, P.R. China
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- Botton, Gianluigi A. (författare)
- Department of Materials Science and Engineering, McMaster University, 1280 Main Street West, Hamilton, Ontario L8S 4L7, Canada
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- Maier, Stefan A. (författare)
- Chair in Hybrid Nanosystems, Nanoinstitute Munich, Faculty of Physics, Ludwig-Maximilians-Universität München, D-80539 München, Germany; Department of Physics, Imperial College London, London SW7 2AZ, England
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- Liang, Hongyan (författare)
- School of Materials Science and Engineering, Tianjin University, Tianjin 300350, P.R. China; Key Laboratory of Efficient Utilization of Low and Medium Grade Energy, Ministry of Education, Tianjin University, Tianjin 300350, P.R. China
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School of Materials Science and Engineering, Tianjin University, Tianjin 300350, PR. China; Key Laboratory of Efficient Utilization of Low and Medium Grade Energy, Ministry of Education, Tianjin University, Tianjin 300350, P.R. China Hybrid Nanosystems, Nanoinstitute Munich, Faculty of Physics, Ludwig-Maximilians-Universität München, D-80539 München, Germany (creator_code:org_t)
- 2021-06-11
- 2021
- Engelska.
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Ingår i: ACS Nano. - : American Chemical Society (ACS). - 1936-0851 .- 1936-086X. ; 15:6, s. 10553-10564
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Plasmonic nanoparticles are ideal candidates for hot-electron-assisted applications, but their narrow resonance region and limited hotspot number hindered the energy utilization of broadband solar energy. Inspired by tree branches, we designed and chemically synthesized silver fractals, which enable self-constructed hotspots and multiple plasmonic resonances, extending the broadband generation of hot electrons for better matching with the solar radiation spectrum. We directly revealed the plasmonic origin, the spatial distribution, and the decay dynamics of hot electrons on the single-particle level by using ab initio simulation, dark-field spectroscopy, pump–probe measurements, and electron energy loss spectroscopy. Our results show that fractals with acute tips and narrow gaps can support broadband resonances (400–1100 nm) and a large number of randomly distributed hotspots, which can provide unpolarized enhanced near field and promote hot electron generation. As a proof-of-concept, hot-electron-triggered dimerization of p-nitropthiophenol and hydrogen production are investigated under various irradiations, and the promoted hot electron generation on fractals was confirmed with significantly improved efficiency.
Ämnesord
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
Nyckelord
- dendritic fractal
- broadband hot electron generation
- plasmonic resonances
- electron energy loss spectroscopy
- plasmon-assisted photocatalysis
- Experimentell fysik
- Experimental Physics
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Wang, Xi
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Liu, Changxu
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Gao, Congcong
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Yao, Kaili
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Mousavi Masouleh ...
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Berté, Rodrigo
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visa fler...
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Ren, Haoran
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de S. Menezes, L ...
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Cortés, Emiliano
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Bicket, Isobel C ...
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Wang, Haiyu
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Li, Ning
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Zhang, Zhenglong
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Li, Ming
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Xie, Wei
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Yu, Yifu
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Fang, Yurui
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Zhang, Shunping
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Xu, Hongxing
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Vomiero, Alberto
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Liu, Yongchang
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Botton, Gianluig ...
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Maier, Stefan A.
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Liang, Hongyan
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