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Oh H, Searles EK, Chatterjee S, Jia Z, Lee SA, Link S, Landes CF. Plasmon Energy Transfer Driven by Electrochemical Tuning of Methylene Blue on Single Gold Nanorods. ACS NANO 2023; 17:18280-18289. [PMID: 37672688 DOI: 10.1021/acsnano.3c05387] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/08/2023]
Abstract
Plasmonic photocatalysis has attracted interest for its potential to generate energy-efficient reactions, but ultrafast internal conversion limits efficient plasmon-based chemistry. Resonance energy transfer (RET) to surface adsorbates offers a way to outcompete internal conversion pathways and also eliminate the need for sacrificial counter-reactions. Herein, we demonstrate RET between methylene blue (MB) and gold nanorods (AuNRs) using in situ single-particle spectroelectrochemistry. During electrochemically driven reversible redox reactions between MB and leucomethylene blue (LMB), we show that the homogeneous line width is broadened when spectral overlap between AuNR scattering and absorption of MB is maximized, indicating RET. Additionally, electrochemical oxidative oligomerization of MB allowed additional dipole coupling to generate RET at lower energies. Time-dependent density functional theory-based simulated absorption provided theoretical insight into the optical properties, as MB molecules were electrochemically oligomerized. Our findings show a mechanism for driving efficient plasmon-assisted processes by RET through the change in the chemical states of surface adsorbates.
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Affiliation(s)
- Hyuncheol Oh
- Department of Chemistry, Rice University, 6100 Main Street, Houston, Texas 77005, United States
| | - Emily K Searles
- Department of Chemistry, Rice University, 6100 Main Street, Houston, Texas 77005, United States
| | - Subhojyoti Chatterjee
- Department of Chemistry, Rice University, 6100 Main Street, Houston, Texas 77005, United States
| | - Zhenyang Jia
- Department of Chemical and Biomolecular Engineering, Rice University, 6100 Main Street, Houston, Texas 77005, United States
| | - Stephen A Lee
- Department of Chemistry, Rice University, 6100 Main Street, Houston, Texas 77005, United States
| | - Stephan Link
- Department of Chemistry, Rice University, 6100 Main Street, Houston, Texas 77005, United States
- Smalley-Curl Institute, Rice University, 6100 Main Street, Houston, Texas 77005, United States
- Department of Electrical and Computer Engineering, Rice University, 6100 Main Street, Houston, Texas 77005, United States
| | - Christy F Landes
- Department of Chemistry, Rice University, 6100 Main Street, Houston, Texas 77005, United States
- Smalley-Curl Institute, Rice University, 6100 Main Street, Houston, Texas 77005, United States
- Department of Electrical and Computer Engineering, Rice University, 6100 Main Street, Houston, Texas 77005, United States
- Department of Chemical and Biomolecular Engineering, Rice University, 6100 Main Street, Houston, Texas 77005, United States
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Kiselev A, Achouri K, Martin OJF. Electromagnetic forces in the time domain. OPTICS EXPRESS 2022; 30:32215-32229. [PMID: 36242288 DOI: 10.1364/oe.461086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Accepted: 08/08/2022] [Indexed: 06/16/2023]
Abstract
We look beyond the standard time-average approach and investigate optical forces in the time domain. The formalism is developed for both the Abraham and Minkowski momenta, which appear to converge in the time domain. We unveil an extremely rich - and by far unexplored - physics associated with the dynamics of the optical forces, which can even attain negative values over short time intervals or produce low frequency dynamics that can excite mechanical oscillations in macroscopic objects under polychromatic illumination. The magnitude of this beating force is tightly linked to the average one. Implications of this work for transient optomechanics are discussed.
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Jiang M, Liu X, Liu M, Zhu R, Li B, Wan P, Shi D, Kan C. Interfacial modulation and plasmonic effect mediated high-brightness green light sources in a single Ga-doped ZnO microwire based heterojunction. CrystEngComm 2022. [DOI: 10.1039/d2ce00917j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Heterostructure manufacturing has been extensively studied as indispensable footstones in the progressive semiconductor optoelectronic devices due to their constituent materials, interfacial states and electronic transport capabilities, thus enabling competitive candidates...
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Hartelt M, Terekhin PN, Eul T, Mahro AK, Frisch B, Prinz E, Rethfeld B, Stadtmüller B, Aeschlimann M. Energy and Momentum Distribution of Surface Plasmon-Induced Hot Carriers Isolated via Spatiotemporal Separation. ACS NANO 2021; 15:19559-19569. [PMID: 34852458 PMCID: PMC8717854 DOI: 10.1021/acsnano.1c06586] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Accepted: 11/10/2021] [Indexed: 06/13/2023]
Abstract
Understanding the differences between photon-induced and plasmon-induced hot electrons is essential for the construction of devices for plasmonic energy conversion. The mechanism of the plasmonic enhancement in photochemistry, photocatalysis, and light-harvesting and especially the role of hot carriers is still heavily discussed. The question remains, if plasmon-induced and photon-induced hot carriers are fundamentally different or if plasmonic enhancement is only an effect of field concentration producing these carriers in greater numbers. For the bulk plasmon resonance, a fundamental difference is known, yet for the technologically important surface plasmons, this is far from being settled. The direct imaging of surface plasmon-induced hot carriers could provide essential insight, but the separation of the influence of driving laser, field-enhancement, and fundamental plasmon decay has proven to be difficult. Here, we present an approach using a two-color femtosecond pump-probe scheme in time-resolved 2-photon-photoemission (tr-2PPE), supported by a theoretical analysis of the light and plasmon energy flow. We separate the energy and momentum distribution of the plasmon-induced hot electrons from that of photoexcited electrons by following the spatial evolution of photoemitted electrons with energy-resolved photoemission electron microscopy (PEEM) and momentum microscopy during the propagation of a surface plasmon polariton (SPP) pulse along a gold surface. With this scheme, we realize a direct experimental access to plasmon-induced hot electrons. We find a plasmonic enhancement toward high excitation energies and small in-plane momenta, which suggests a fundamentally different mechanism of hot electron generation, as previously unknown for surface plasmons.
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Affiliation(s)
- Michael Hartelt
- Department
of Physics and Research Center OPTIMAS,TU
Kaiserslautern, Erwin-Schrödinger-Straße 46, 67663 Kaiserslautern, Germany
| | - Pavel N. Terekhin
- Department
of Physics and Research Center OPTIMAS,TU
Kaiserslautern, Erwin-Schrödinger-Straße 46, 67663 Kaiserslautern, Germany
| | - Tobias Eul
- Department
of Physics and Research Center OPTIMAS,TU
Kaiserslautern, Erwin-Schrödinger-Straße 46, 67663 Kaiserslautern, Germany
| | - Anna-Katharina Mahro
- Department
of Physics and Research Center OPTIMAS,TU
Kaiserslautern, Erwin-Schrödinger-Straße 46, 67663 Kaiserslautern, Germany
| | - Benjamin Frisch
- Department
of Physics and Research Center OPTIMAS,TU
Kaiserslautern, Erwin-Schrödinger-Straße 46, 67663 Kaiserslautern, Germany
| | - Eva Prinz
- Department
of Physics and Research Center OPTIMAS,TU
Kaiserslautern, Erwin-Schrödinger-Straße 46, 67663 Kaiserslautern, Germany
| | - Baerbel Rethfeld
- Department
of Physics and Research Center OPTIMAS,TU
Kaiserslautern, Erwin-Schrödinger-Straße 46, 67663 Kaiserslautern, Germany
| | - Benjamin Stadtmüller
- Department
of Physics and Research Center OPTIMAS,TU
Kaiserslautern, Erwin-Schrödinger-Straße 46, 67663 Kaiserslautern, Germany
- Institute
of Physics, Johannes Gutenberg University
Mainz, Staudingerweg
7, 55128 Mainz, Germany
| | - Martin Aeschlimann
- Department
of Physics and Research Center OPTIMAS,TU
Kaiserslautern, Erwin-Schrödinger-Straße 46, 67663 Kaiserslautern, Germany
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