1
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Bagnall AJ, Ganguli S, Sekretareva A. Hot or Not? Reassessing Mechanisms of Photocurrent Generation in Plasmon-Enhanced Electrocatalysis. Angew Chem Int Ed Engl 2024; 63:e202314352. [PMID: 38009712 DOI: 10.1002/anie.202314352] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2023] [Revised: 11/21/2023] [Accepted: 11/22/2023] [Indexed: 11/29/2023]
Abstract
It is now widely accepted that certain effects arising from localised surface plasmon resonance, such as enhanced electromagnetic fields, hot carriers, and thermal effects, can facilitate electrocatalytic processes. This newly emerging field of research is commonly referred to as plasmon-enhanced electrocatalysis (PEEC) and is attracting increasing interest from the research community, particularly regarding harnessing the high energy of hot carriers. However, this has led to a lack of critical analysis in the literature, where the participation of hot carriers is routinely claimed due to their perceived desirability, while the contribution of other effects is often not sufficiently investigated. As a result, correctly differentiating between the possible mechanisms at play has become a key point of contention. In this review, we specifically focus on the mechanisms behind photocurrents observed in PEEC and critically evaluate the possibility of alternative sources of current enhancement in the reported PEEC systems. Furthermore, we present guidelines for the best experimental practices and methods to distinguish between the various enhancement mechanisms in PEEC.
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Affiliation(s)
- Andrew J Bagnall
- Department of Chemistry, Ångström, Uppsala University, 75120, Uppsala, Sweden
| | - Sagar Ganguli
- Department of Chemistry, Ångström, Uppsala University, 75120, Uppsala, Sweden
| | - Alina Sekretareva
- Department of Chemistry, Ångström, Uppsala University, 75120, Uppsala, Sweden
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2
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Jumbo-Nogales A, Rao A, Olejniczak A, Grzelczak M, Rakovich Y. Unveiling the Synergy of Coupled Gold Nanoparticles and J-Aggregates in Plexcitonic Systems for Enhanced Photochemical Applications. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 14:35. [PMID: 38202491 PMCID: PMC10780452 DOI: 10.3390/nano14010035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2023] [Revised: 12/06/2023] [Accepted: 12/17/2023] [Indexed: 01/12/2024]
Abstract
Plexcitonic systems based on metal nanostructures and molecular J-aggregates offer an excellent opportunity to explore the intriguing interplay between plasmonic excitations and excitons, offering unique insights into light-matter interactions at the nanoscale. Their potential applications in photocatalysis have prompted a growing interest in both their synthesis and the analysis of their properties. However, in order to construct a high-performing system, it is essential to ensure chemical and spectral compatibility between both components. We present the results of a study into a hybrid system, achieved through the coupling of gold nanobipyramids with organic molecules, and demonstrate the strengthened photochemical properties of such a system in comparison with purely J-aggregates. Our analysis includes the absorbance and photoluminescence characterization of the system, revealing the remarkable plexcitonic interaction and pronounced coupling effect. The absorbance spectroscopy of the hybrid systems enabled the investigation of the coupling strength (g). Additionally, the photoluminescence response of the J-aggregates and coupled systems reveals the impact of the coupling regime. Utilizing fluorescence lifetime imaging microscopy, we established how the photoluminescence lifetime components of the J-aggregates are affected within the plexcitonic system. Finally, to assess the photodegradation of J-aggregates and plexcitonic systems, we conducted a comparative analysis. Our findings reveal that plasmon-enhanced interactions lead to improved photostability in hybrid systems.
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Affiliation(s)
- Alba Jumbo-Nogales
- Centro de Física de Materiales (MPC, CSIC-UPV/EHU), 20018 San Sebastián, Spain; (A.J.-N.); (A.R.); (A.O.); (M.G.)
| | - Anish Rao
- Centro de Física de Materiales (MPC, CSIC-UPV/EHU), 20018 San Sebastián, Spain; (A.J.-N.); (A.R.); (A.O.); (M.G.)
| | - Adam Olejniczak
- Centro de Física de Materiales (MPC, CSIC-UPV/EHU), 20018 San Sebastián, Spain; (A.J.-N.); (A.R.); (A.O.); (M.G.)
| | - Marek Grzelczak
- Centro de Física de Materiales (MPC, CSIC-UPV/EHU), 20018 San Sebastián, Spain; (A.J.-N.); (A.R.); (A.O.); (M.G.)
- Donostia International Physics Center (DIPC), 20018 San Sebastián, Spain
| | - Yury Rakovich
- Centro de Física de Materiales (MPC, CSIC-UPV/EHU), 20018 San Sebastián, Spain; (A.J.-N.); (A.R.); (A.O.); (M.G.)
- Donostia International Physics Center (DIPC), 20018 San Sebastián, Spain
- Polymers and Materials, Physics, Chemistry and Technology, Chemistry Faculty, University of the Basque Country (UPV/EHU), 20018 San Sebastián, Spain
- Ikerbasque Basque Foundation for Science, 48013 Bilbao, Spain
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3
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Guo A, Lu Y, Song Y, Cao Y, Du R, Li J, Fu Z, Yan L, Zhang Z. Plasmon-Mediated Hydrogen Dissociation with Symmetry Tunability. J Phys Chem Lett 2023:5748-5753. [PMID: 37319379 DOI: 10.1021/acs.jpclett.3c01146] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
The atomic-scale mechanism of plasmon-mediated H2 dissociation on gold nanoclusters is investigated using time-dependent density functional theory. The position relationship between the nanocluster and H2 has a strong influence on the reaction rate. When the hydrogen molecule is located in the interstitial center of the plasmonic dimer, the hot spot here has a great field enhancement, which can promote dissociation effectively. The change in the molecular position results in symmetry breaking, and the molecular dissociation is inhibited. For the asymmetric structure, direct charge transfer from the gold cluster to the antibonding state of the hydrogen molecule by plasmon decay makes a prominent contribution to the reaction. The results provide deep insights into the influence of structural symmetry on plasmon-assisted photocatalysis in the quantum regime.
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Affiliation(s)
- Axin Guo
- School of Physics and Information Technology, Shaanxi Normal University, Xi'an, Shaanxi 710119, China
| | - Yirui Lu
- School of Physics and Information Technology, Shaanxi Normal University, Xi'an, Shaanxi 710119, China
| | - Yuhui Song
- School of Physics and Information Technology, Shaanxi Normal University, Xi'an, Shaanxi 710119, China
| | - Yifei Cao
- School of Physics and Information Technology, Shaanxi Normal University, Xi'an, Shaanxi 710119, China
| | - Ruhai Du
- School of Physics and Information Technology, Shaanxi Normal University, Xi'an, Shaanxi 710119, China
| | - Jinping Li
- School of Physics and Information Technology, Shaanxi Normal University, Xi'an, Shaanxi 710119, China
| | - Zhengkun Fu
- School of Physics and Information Technology, Shaanxi Normal University, Xi'an, Shaanxi 710119, China
| | - Lei Yan
- School of Physics and Information Technology, Shaanxi Normal University, Xi'an, Shaanxi 710119, China
| | - Zhenglong Zhang
- School of Physics and Information Technology, Shaanxi Normal University, Xi'an, Shaanxi 710119, China
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4
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Jiang T, Wei J, Li J, Xue H, Tian J, Gautier R. Rapid Identification of Efficient Photocatalysts by Visualizing the Spatial Distribution of Photoinduced Charge Carriers. ACS Catal 2023. [DOI: 10.1021/acscatal.3c00149] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/14/2023]
Affiliation(s)
- Tengfei Jiang
- School of Chemistry and Chemical Engineering, Yangzhou University, 180 Siwangting Road, Yangzhou 225002, People’s Republic of China
| | - Jingying Wei
- School of Chemistry and Chemical Engineering, Yangzhou University, 180 Siwangting Road, Yangzhou 225002, People’s Republic of China
| | - Jianyang Li
- School of Chemistry and Chemical Engineering, Yangzhou University, 180 Siwangting Road, Yangzhou 225002, People’s Republic of China
| | - Huaiguo Xue
- School of Chemistry and Chemical Engineering, Yangzhou University, 180 Siwangting Road, Yangzhou 225002, People’s Republic of China
| | - Jingqi Tian
- School of Chemistry and Chemical Engineering, Yangzhou University, 180 Siwangting Road, Yangzhou 225002, People’s Republic of China
| | - Romain Gautier
- Nantes Université, CNRS, Institut des Matériaux de Nantes Jean Rouxel, IMN, F-44000 Nantes, France
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5
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Nguyen HL, Do TN, Durmusoglu EG, Izmir M, Sarkar R, Pal S, Prezhdo OV, Demir HV, Tan HS. Measuring the Ultrafast Spectral Diffusion and Vibronic Coupling Dynamics in CdSe Colloidal Quantum Wells using Two-Dimensional Electronic Spectroscopy. ACS NANO 2023; 17:2411-2420. [PMID: 36706108 DOI: 10.1021/acsnano.2c09606] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
We measure the ultrafast spectral diffusion, vibronic dynamics, and energy relaxation of a CdSe colloidal quantum wells (CQWs) system at room temperature using two-dimensional electronic spectroscopy (2DES). The energy relaxation of light-hole (LH) excitons and hot carriers to heavy-hole (HH) excitons is resolved with a time scale of ∼210 fs. We observe the equilibration dynamics between the spectroscopically accessible HH excitonic state and a dark state with a time scale of ∼160 fs. We use the center line slope analysis to quantify the spectral diffusion dynamics in HH excitons, which contains an apparent sub-200 fs decay together with oscillatory features resolved at 4 and 25 meV. These observations can be explained by the coupling to various lattice phonon modes. We further perform quantum calculations that can replicate and explain the observed dynamics. The 4 meV mode is observed to be in the near-critically damped regime and may be mediating the transition between the bright and dark HH excitons. These findings show that 2DES can provide a comprehensive and detailed characterization of the ultrafast spectral properties in CQWs and similar nanomaterials.
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Affiliation(s)
- Hoang Long Nguyen
- School of Chemistry, Chemical Engineering and Biotechnology, Nanyang Technological University, 21 Nanyang Link, Singapore637371, Singapore
- University of Groningen, Zernike Institute for Advanced Materials, Nijenborgh 4, 9747 AGGroningen, The Netherlands
| | - Thanh Nhut Do
- School of Chemistry, Chemical Engineering and Biotechnology, Nanyang Technological University, 21 Nanyang Link, Singapore637371, Singapore
| | - Emek G Durmusoglu
- LUMINOUS! Centre of Excellence for Semiconductor Lighting and Displays, The Photonics Institute, School of Electrical and Electronic Engineering, Nanyang Technological University, Singapore639798, Singapore
- Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore637371, Singapore
| | - Merve Izmir
- LUMINOUS! Centre of Excellence for Semiconductor Lighting and Displays, The Photonics Institute, School of Electrical and Electronic Engineering, Nanyang Technological University, Singapore639798, Singapore
- School of Materials Science and Engineering, Nanyang Technological University, Singapore639798, Singapore
| | - Ritabrata Sarkar
- Department of Chemistry, University of Gour Banga, Malda732103, India
- Bremen Center for Computational Materials Science, University of Bremen, Bremen28359, Germany
| | - Sougata Pal
- Department of Chemistry, University of Gour Banga, Malda732103, India
| | - Oleg V Prezhdo
- Department of Chemistry, University of Southern California, Los Angeles, California90089, United States
| | - Hilmi Volkan Demir
- LUMINOUS! Centre of Excellence for Semiconductor Lighting and Displays, The Photonics Institute, School of Electrical and Electronic Engineering, Nanyang Technological University, Singapore639798, Singapore
- Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore637371, Singapore
- School of Materials Science and Engineering, Nanyang Technological University, Singapore639798, Singapore
- Department of Electrical and Electronics Engineering, Department of Physics, UNAM─Institute of Materials Science and Nanotechnology, Bilkent University, Ankara06800, Turkey
| | - Howe-Siang Tan
- School of Chemistry, Chemical Engineering and Biotechnology, Nanyang Technological University, 21 Nanyang Link, Singapore637371, Singapore
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6
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Zhu W, Satterthwaite PF, Jastrzebska-Perfect P, Brenes R, Niroui F. Nanoparticle contact printing with interfacial engineering for deterministic integration into functional structures. SCIENCE ADVANCES 2022; 8:eabq4869. [PMID: 36288303 PMCID: PMC9604533 DOI: 10.1126/sciadv.abq4869] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Accepted: 09/12/2022] [Indexed: 06/16/2023]
Abstract
Deterministic, pristine, and scalable integration of individual nanoparticles onto arbitrary surfaces is an ongoing challenge, yet essential for harnessing their unique properties for functional nanoscale devices. To address this challenge, we present a versatile technique where spatially arranged nanoparticles assembled in a topographical template are printed onto diverse surfaces, through a single contact-and-release step, with >95% transfer yield and <50-nanometer placement accuracy. Through engineering of interfacial interactions, our approach uniquely promotes high-yield transfer of individual particles without needing solvents, surface treatments, and polymer sacrificial layers, which are conventionally inevitable. By avoiding these mediation steps, surfaces can remain damage and contamination free and accessible to integrate into functional structures. We demonstrate this in a particle-on-mirror model system, where >2000 precisely defined nanocavities display a consistent plasmonic response with minimized interstructure variability. Through fabricating arrays of emitter-coupled nanocavities, we further highlight the integration opportunities offered by our contact printing.
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Affiliation(s)
- Weikun Zhu
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Peter F. Satterthwaite
- Department of Electrical Engineering and Computer Science, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Patricia Jastrzebska-Perfect
- Department of Electrical Engineering and Computer Science, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Roberto Brenes
- Department of Electrical Engineering and Computer Science, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Farnaz Niroui
- Department of Electrical Engineering and Computer Science, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
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7
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Kumar Singh A, Das C, Indra A. Scope and prospect of transition metal-based cocatalysts for visible light-driven photocatalytic hydrogen evolution with graphitic carbon nitride. Coord Chem Rev 2022. [DOI: 10.1016/j.ccr.2022.214516] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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8
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Cao Z, Zhu J, Peng J, Meng N, Bian F, Luan C, Zhang M, Li Y, Yu K, Zeng J. Transformation Pathway from CdSe Nanoplatelets with Absorption Doublets at 373/393 nm to Nanoplatelets at 434/460 nm. JOURNAL OF PHYSICAL CHEMISTRY LETTERS 2022; 13:3983-3989. [PMID: 35481745 DOI: 10.1021/acs.jpclett.2c00844] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
For those colloidal semiconductor CdSe nanospecies that exhibit sharp optical absorption doublets, different explanations have appeared in the literature regarding their morphological nature and formation, with no consensus reached. Here, we discuss the transformation pathway in two types of CdSe nanoplatelets (NPLs), from NPL-393 to NPL-460, exhibiting absorption doublets at 373/393 and 433/460 nm, respectively. Synchrotron-based small/wide-angle X-ray scattering (SAXS/WAXS) was performed to monitor the in situ transformation associated with the temperature. Combining the results of SAXS/WAXS, optical spectroscopy, and transmission electron microscopy, we propose that the transformation pathway experiences corresponding magic-sized clusters (MSCs), which display similar optical properties but with zero-dimensional structure. From stacked NPL-393 to stacked NPL-460, the transformation goes through sequentially individual NPL-393, MSC-393, MSC-460, and individual NPL-460 at their corresponding characteristic temperature. The present findings provide compelling evidence that both MSCs and their assembled NPLs exhibit similar optical absorption.
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Affiliation(s)
- Zhaopeng Cao
- Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, People's Republic of China.,Shanghai Synchrotron Radiation Facility, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201204, People's Republic of China.,School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, People's Republic of China.,University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
| | - Jinming Zhu
- School of Basic Medicine, Guizhou Medical University, Guiyang, Guizhou 550025, People's Republic of China.,Institute of Atomic and Molecular Physics, Sichuan University, Chengdu, Sichuan 610065, People's Republic of China
| | - Jun Peng
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, People's Republic of China
| | - Nan Meng
- Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, People's Republic of China.,Shanghai Synchrotron Radiation Facility, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201204, People's Republic of China.,University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
| | - Fenggang Bian
- Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, People's Republic of China.,Shanghai Synchrotron Radiation Facility, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201204, People's Republic of China.,University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
| | - Chaoran Luan
- Institute of Atomic and Molecular Physics, Sichuan University, Chengdu, Sichuan 610065, People's Republic of China.,Laboratory of Ethnopharmacology, Tissue-Orientated Property of Chinese Medicine Key Laboratory of Sichuan Province, West China School of Medicine, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, People's Republic of China
| | - Meng Zhang
- Institute of Atomic and Molecular Physics, Sichuan University, Chengdu, Sichuan 610065, People's Republic of China
| | - Yan Li
- Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, People's Republic of China.,Shanghai Synchrotron Radiation Facility, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201204, People's Republic of China.,School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, People's Republic of China.,University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
| | - Kui Yu
- Institute of Atomic and Molecular Physics, Sichuan University, Chengdu, Sichuan 610065, People's Republic of China.,Engineering Research Center in Biomaterials, Sichuan University, Chengdu, Sichuan 610065, People's Republic of China
| | - Jianrong Zeng
- Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, People's Republic of China.,Shanghai Synchrotron Radiation Facility, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201204, People's Republic of China.,University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
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9
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Alfieri A, Anantharaman SB, Zhang H, Jariwala D. Nanomaterials for Quantum Information Science and Engineering. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2022:e2109621. [PMID: 35139247 DOI: 10.1002/adma.202109621] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/25/2021] [Revised: 02/04/2022] [Indexed: 06/14/2023]
Abstract
Quantum information science and engineering (QISE)-which entails the use of quantum mechanical states for information processing, communications, and sensing-and the area of nanoscience and nanotechnology have dominated condensed matter physics and materials science research in the 21st century. Solid-state devices for QISE have, to this point, predominantly been designed with bulk materials as their constituents. This review considers how nanomaterials (i.e., materials with intrinsic quantum confinement) may offer inherent advantages over conventional materials for QISE. The materials challenges for specific types of qubits, along with how emerging nanomaterials may overcome these challenges, are identified. Challenges for and progress toward nanomaterials-based quantum devices are condidered. The overall aim of the review is to help close the gap between the nanotechnology and quantum information communities and inspire research that will lead to next-generation quantum devices for scalable and practical quantum applications.
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Affiliation(s)
- Adam Alfieri
- Electrical and Systems Engineering, University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Surendra B Anantharaman
- Electrical and Systems Engineering, University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Huiqin Zhang
- Electrical and Systems Engineering, University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Deep Jariwala
- Electrical and Systems Engineering, University of Pennsylvania, Philadelphia, PA, 19104, USA
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10
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Zhang Y, Yan L, Guan M, Chen D, Xu Z, Guo H, Hu S, Zhang S, Liu X, Guo Z, Li S, Meng S. Indirect to Direct Charge Transfer Transition in Plasmon-Enabled CO 2 Photoreduction. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2022; 9:e2102978. [PMID: 34766740 PMCID: PMC8805563 DOI: 10.1002/advs.202102978] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2021] [Revised: 10/11/2021] [Indexed: 05/25/2023]
Abstract
Understanding hot carrier dynamics between plasmonic nanomaterials and its adsorbate is of great importance for plasmon-enhanced photoelectronic processes such as photocatalysis, optical sensing and spectroscopic analysis. However, it is often challenging to identify specific dominant mechanisms for a given process because of the complex pathways and ultrafast interactive dynamics of the photoelectrons. Here, using CO2 reduction as an example, the underlying mechanisms of plasmon-driven catalysis at the single-molecule level using time-dependent density functional theory calculations is clearly probed. The CO2 molecule adsorbed on two typical nanoclusters, Ag20 and Ag147 , is photoreduced by optically excited plasmon, accompanied by the excitation of asymmetric stretching and bending modes of CO2 . A nonlinear relationship has been identified between laser intensity and reaction rate, demonstrating a synergic interplay and transition from indirect hot-electron transfer to direct charge transfer, enacted by strong localized surface plasmons. These findings offer new insights for CO2 photoreduction and for the design of effective pathways toward highly efficient plasmon-mediated photocatalysis.
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Affiliation(s)
- Yimin Zhang
- Key Laboratory of Material PhysicsMinistry of EducationSchool of Physics and MicroelectronicsZhengzhou UniversityZhengzhou450001P. R. China
- Beijing National Laboratory for Condensed Matter Physics and Institute of PhysicsChinese Academy of SciencesBeijing100190P. R. China
- School of Physical SciencesUniversity of Chinese Academy of SciencesBeijing100190P. R. China
| | - Lei Yan
- School of Physics and Information TechnologyShaanxi Normal UniversityXi'an710119P. R. China
| | - Mengxue Guan
- Beijing National Laboratory for Condensed Matter Physics and Institute of PhysicsChinese Academy of SciencesBeijing100190P. R. China
- School of Physical SciencesUniversity of Chinese Academy of SciencesBeijing100190P. R. China
| | - Daqiang Chen
- Beijing National Laboratory for Condensed Matter Physics and Institute of PhysicsChinese Academy of SciencesBeijing100190P. R. China
- School of Physical SciencesUniversity of Chinese Academy of SciencesBeijing100190P. R. China
| | - Zhe Xu
- Key Laboratory of Material PhysicsMinistry of EducationSchool of Physics and MicroelectronicsZhengzhou UniversityZhengzhou450001P. R. China
| | - Haizhong Guo
- Key Laboratory of Material PhysicsMinistry of EducationSchool of Physics and MicroelectronicsZhengzhou UniversityZhengzhou450001P. R. China
| | - Shiqi Hu
- Beijing National Laboratory for Condensed Matter Physics and Institute of PhysicsChinese Academy of SciencesBeijing100190P. R. China
- School of Physical SciencesUniversity of Chinese Academy of SciencesBeijing100190P. R. China
| | - Shengjie Zhang
- Beijing National Laboratory for Condensed Matter Physics and Institute of PhysicsChinese Academy of SciencesBeijing100190P. R. China
- School of Physical SciencesUniversity of Chinese Academy of SciencesBeijing100190P. R. China
| | - Xinbao Liu
- Beijing National Laboratory for Condensed Matter Physics and Institute of PhysicsChinese Academy of SciencesBeijing100190P. R. China
- School of Physical SciencesUniversity of Chinese Academy of SciencesBeijing100190P. R. China
| | - Zhengxiao Guo
- Departments of Chemistry and Mechanical EngineeringThe University of Hong KongHong Kong999077P. R. China
- HKU Zhejiang Institute of Research and InnovationThe University of Hong KongHangzhou311305P. R. China
| | - Shunfang Li
- Key Laboratory of Material PhysicsMinistry of EducationSchool of Physics and MicroelectronicsZhengzhou UniversityZhengzhou450001P. R. China
| | - Sheng Meng
- Beijing National Laboratory for Condensed Matter Physics and Institute of PhysicsChinese Academy of SciencesBeijing100190P. R. China
- School of Physical SciencesUniversity of Chinese Academy of SciencesBeijing100190P. R. China
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11
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Zhang Y, Chen D, Meng W, Li S, Meng S. Plasmon-Induced Water Splitting on Ag-Alloyed Pt Single-Atom Catalysts. Front Chem 2021; 9:742794. [PMID: 34760868 PMCID: PMC8573343 DOI: 10.3389/fchem.2021.742794] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Accepted: 09/02/2021] [Indexed: 12/04/2022] Open
Abstract
A promising route to realize solar-to-chemical energy conversion resorts to water splitting using plasmon photocatalysis. However, the ultrafast carrier dynamics and underlying mechanism in such processes has seldom been investigated, especially when the single-atom catalyst is introduced. Here, from the perspective of quantum dynamics at the atomic length scale and femtosecond time scale, we probe the carrier and structural dynamics of plasmon-assisted water splitting on an Ag-alloyed Pt single-atom catalyst, represented by the Ag19Pt nanocluster. The substitution of an Ag atom by the Pt atom at the tip of the tetrahedron Ag20 enhances the interaction between water and the nanoparticle. The excitation of localized surface plasmons in the Ag19Pt cluster strengthens the charge separation and electron transfer upon illumination. These facts cooperatively turn on more than one charge transfer channels and give rise to enhanced charge transfer from the metal nanoparticle to the water molecule, resulting in rapid plasmon-induced water splitting. These results provide atomistic insights and guidelines for the design of efficient single-atom photocatalysts for plasmon-assisted water splitting.
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Affiliation(s)
- Yimin Zhang
- Key Laboratory of Material Physics, Ministry of Education, School of Physics and Microelectronics, Zhengzhou University, Zhengzhou, China.,Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences, Beijing, China
| | - Daqiang Chen
- Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences, Beijing, China
| | - Weite Meng
- Key Laboratory of Material Physics, Ministry of Education, School of Physics and Microelectronics, Zhengzhou University, Zhengzhou, China.,School of Chemical Engineering, Anhui University of Science and Technology, Huainan, China
| | - Shunfang Li
- Key Laboratory of Material Physics, Ministry of Education, School of Physics and Microelectronics, Zhengzhou University, Zhengzhou, China
| | - Sheng Meng
- Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences, Beijing, China.,School of Physical Sciences, University of Chinese Academy of Sciences, Beijing, China
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12
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Liu D, Xue C. Plasmonic Coupling Architectures for Enhanced Photocatalysis. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2021; 33:e2005738. [PMID: 33891777 DOI: 10.1002/adma.202005738] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Revised: 10/05/2020] [Indexed: 06/12/2023]
Abstract
Plasmonic photocatalysis is a promising approach for solar energy transformation. Comparing with isolated metal nanoparticles, the plasmonic coupling architectures can provide further strengthened local electromagnetic field and boosted light-harvesting capability through optimal control over the composition, spacing, and orientation of individual nanocomponents. As such, when integrated with semiconductor photocatalysts, the coupled metal nanostructures can dramatically promote exciton generation and separation through plasmonic-coupling-driven charge/energy transfer toward superior photocatalytic efficiencies. Herein, the principles of the plasmonic coupling effect are presented and recent progress on the construction of plasmonic coupling architectures and their integration with semiconductors for enhanced photocatalytic reactions is summarized. In addition, the remaining challenges as to the rational design and utilization of plasmon coupling structures are elaborated, and some prospects to inspire new opportunities on the future development of plasmonic coupling structures for efficient and sustainable light-driven reactions are raised.
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Affiliation(s)
- Dong Liu
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
| | - Can Xue
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
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13
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Tian L, Xin Q, Zhao C, Xie G, Akram MZ, Wang W, Ma R, Jia X, Guo B, Gong JR. Nanoarray Structures for Artificial Photosynthesis. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2021; 17:e2006530. [PMID: 33896110 DOI: 10.1002/smll.202006530] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Revised: 01/25/2021] [Indexed: 05/14/2023]
Abstract
Conversion and storage of solar energy into fuels and chemicals by artificial photosynthesis has been considered as one of the promising methods to address the global energy crisis. However, it is still far from the practical applications on a large scale. Nanoarray structures that combine the advantages of nanosize and array alignment have demonstrated great potential to improve solar energy conversion efficiency, stability, and selectivity. This article provides a comprehensive review on the utilization of nanoarray structures in artificial photosynthesis of renewable fuels and high value-added chemicals. First, basic principles of solar energy conversion and superiorities of using nanoarray structures in this field are described. Recent research progress on nanoarray structures in both abiotic and abiotic-biotic hybrid systems is then outlined, highlighting contributions to light absorption, charge transport and transfer, and catalytic reactions (including kinetics and selectivity). Finally, conclusions and outlooks on future research directions of nanoarray structures for artificial photosynthesis are presented.
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Affiliation(s)
- Liangqiu Tian
- Chinese Academy of Sciences (CAS) Center for Excellence in Nanoscience, CAS Key Laboratory for Nanosystem and Hierarchical Fabrication, National Center for Nanoscience and Technology, Beijing, 100190, P. R. China
- School of Chemical Sciences, University of CAS, Beijing, 100049, P. R. China
| | - Qi Xin
- Chinese Academy of Sciences (CAS) Center for Excellence in Nanoscience, CAS Key Laboratory for Nanosystem and Hierarchical Fabrication, National Center for Nanoscience and Technology, Beijing, 100190, P. R. China
| | - Chang Zhao
- Chinese Academy of Sciences (CAS) Center for Excellence in Nanoscience, CAS Key Laboratory for Nanosystem and Hierarchical Fabrication, National Center for Nanoscience and Technology, Beijing, 100190, P. R. China
- School of Chemical Sciences, University of CAS, Beijing, 100049, P. R. China
| | - Guancai Xie
- Chinese Academy of Sciences (CAS) Center for Excellence in Nanoscience, CAS Key Laboratory for Nanosystem and Hierarchical Fabrication, National Center for Nanoscience and Technology, Beijing, 100190, P. R. China
- School of Chemical Sciences, University of CAS, Beijing, 100049, P. R. China
| | - Muhammad Zain Akram
- Chinese Academy of Sciences (CAS) Center for Excellence in Nanoscience, CAS Key Laboratory for Nanosystem and Hierarchical Fabrication, National Center for Nanoscience and Technology, Beijing, 100190, P. R. China
- School of Chemical Sciences, University of CAS, Beijing, 100049, P. R. China
| | - Wenrong Wang
- Chinese Academy of Sciences (CAS) Center for Excellence in Nanoscience, CAS Key Laboratory for Nanosystem and Hierarchical Fabrication, National Center for Nanoscience and Technology, Beijing, 100190, P. R. China
| | - Renping Ma
- Chinese Academy of Sciences (CAS) Center for Excellence in Nanoscience, CAS Key Laboratory for Nanosystem and Hierarchical Fabrication, National Center for Nanoscience and Technology, Beijing, 100190, P. R. China
| | - Xinrui Jia
- Chinese Academy of Sciences (CAS) Center for Excellence in Nanoscience, CAS Key Laboratory for Nanosystem and Hierarchical Fabrication, National Center for Nanoscience and Technology, Beijing, 100190, P. R. China
- School of Chemical Sciences, University of CAS, Beijing, 100049, P. R. China
| | - Beidou Guo
- Chinese Academy of Sciences (CAS) Center for Excellence in Nanoscience, CAS Key Laboratory for Nanosystem and Hierarchical Fabrication, National Center for Nanoscience and Technology, Beijing, 100190, P. R. China
- School of Chemical Sciences, University of CAS, Beijing, 100049, P. R. China
| | - Jian Ru Gong
- Chinese Academy of Sciences (CAS) Center for Excellence in Nanoscience, CAS Key Laboratory for Nanosystem and Hierarchical Fabrication, National Center for Nanoscience and Technology, Beijing, 100190, P. R. China
- School of Chemical Sciences, University of CAS, Beijing, 100049, P. R. China
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14
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Abasahl B, Santschi C, Raziman TV, Martin OJF. Fabrication of plasmonic structures with well-controlled nanometric features: a comparison between lift-off and ion beam etching. NANOTECHNOLOGY 2021; 32:475202. [PMID: 34348240 DOI: 10.1088/1361-6528/ac1a93] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Accepted: 08/04/2021] [Indexed: 06/13/2023]
Abstract
After providing a detailed overview of nanofabrication techniques for plasmonics, we discuss in detail two different approaches for the fabrication of metallic nanostructures based on e-beam lithography. The first approach relies on a negative e-beam resist, followed by ion beam milling, while the second uses a positive e-beam resist and lift-off. Overall, ion beam etching provides smaller and more regular features including tiny gaps between sub-parts, that can be controlled down to about 10 nm. In the lift-off process, the metal atoms are deposited within the resist mask and can diffuse on the substrate, giving rise to the formation of nanoclusters that render the nanostructure outline slightly fuzzy. Scattering cross sections computed for both approaches highlight some spectral differences, which are especially visible for structures that support complex resonances, such as Fano resonances. Both techniques can produce useful nanostructures and the results reported therein should guide the researcher to choose the best suited approach for a given application, depending on the available technology.
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Affiliation(s)
- B Abasahl
- Nanophotonics and Metrology Laboratory, Swiss Federal Insititute of Technology Lausanne (EPFL), CH-1015 Lausanne, Switzerland
| | - C Santschi
- Nanophotonics and Metrology Laboratory, Swiss Federal Insititute of Technology Lausanne (EPFL), CH-1015 Lausanne, Switzerland
| | - T V Raziman
- Nanophotonics and Metrology Laboratory, Swiss Federal Insititute of Technology Lausanne (EPFL), CH-1015 Lausanne, Switzerland
| | - O J F Martin
- Nanophotonics and Metrology Laboratory, Swiss Federal Insititute of Technology Lausanne (EPFL), CH-1015 Lausanne, Switzerland
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15
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Xiao J, Liu Y, Steinmetz V, Çaǧlar M, Mc Hugh J, Baikie T, Gauriot N, Nguyen M, Ruggeri E, Andaji-Garmaroudi Z, Stranks SD, Legrand L, Barisien T, Friend RH, Greenham NC, Rao A, Pandya R. Optical and Electronic Properties of Colloidal CdSe Quantum Rings. ACS NANO 2020; 14:14740-14760. [PMID: 33044058 DOI: 10.1021/acsnano.0c01752] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Luminescent colloidal CdSe nanorings are a recently developed type of semiconductor structure that have attracted interest due to the potential for rich physics arising from their nontrivial toroidal shape. However, the exciton properties and dynamics of these materials with complex topology are not yet well understood. Here, we use a combination of femtosecond vibrational spectroscopy, temperature-resolved photoluminescence (PL), and single-particle measurements to study these materials. We find that on transformation of CdSe nanoplatelets to nanorings, by perforating the center of platelets, the emission lifetime decreases and the emission spectrum broadens due to ensemble variations in the ring size and thickness. The reduced PL quantum yield of nanorings (∼10%) compared to platelets (∼30%) is attributed to an enhanced coupling between (i) excitons and CdSe LO-phonons at 200 cm-1 and (ii) negatively charged selenium-rich traps, which give nanorings a high surface charge (∼-50 mV). Population of these weakly emissive trap sites dominates the emission properties with an increased trap emission at low temperatures relative to excitonic emission. Our results provide a detailed picture of the nature of excitons in nanorings and the influence of phonons and surface charge in explaining the broad shape of the PL spectrum and the origin of PL quantum yield losses. Furthermore, they suggest that the excitonic properties of nanorings are not solely a consequence of the toroidal shape but also a result of traps introduced by puncturing the platelet center.
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Affiliation(s)
- James Xiao
- Cavendish Laboratory, University of Cambridge, J.J. Thomson Avenue, CB3 0HE, Cambridge, United Kingdom
| | - Yun Liu
- Cavendish Laboratory, University of Cambridge, J.J. Thomson Avenue, CB3 0HE, Cambridge, United Kingdom
| | - Violette Steinmetz
- Cavendish Laboratory, University of Cambridge, J.J. Thomson Avenue, CB3 0HE, Cambridge, United Kingdom
| | - Mustafa Çaǧlar
- Cavendish Laboratory, University of Cambridge, J.J. Thomson Avenue, CB3 0HE, Cambridge, United Kingdom
| | - Jeffrey Mc Hugh
- Cavendish Laboratory, University of Cambridge, J.J. Thomson Avenue, CB3 0HE, Cambridge, United Kingdom
| | - Tomi Baikie
- Cavendish Laboratory, University of Cambridge, J.J. Thomson Avenue, CB3 0HE, Cambridge, United Kingdom
| | - Nicolas Gauriot
- Cavendish Laboratory, University of Cambridge, J.J. Thomson Avenue, CB3 0HE, Cambridge, United Kingdom
| | - Malgorzata Nguyen
- Cavendish Laboratory, University of Cambridge, J.J. Thomson Avenue, CB3 0HE, Cambridge, United Kingdom
| | - Edoardo Ruggeri
- Cavendish Laboratory, University of Cambridge, J.J. Thomson Avenue, CB3 0HE, Cambridge, United Kingdom
| | - Zahra Andaji-Garmaroudi
- Cavendish Laboratory, University of Cambridge, J.J. Thomson Avenue, CB3 0HE, Cambridge, United Kingdom
- Department of Chemical Engineering & Biotechnology, University of Cambridge, Philippa Fawcett Drive, CB3 0AS, Cambridge, United Kingdom
| | - Samuel D Stranks
- Sorbonne Université, CNRS-UMR 7588, Institut des NanoSciences de Paris, INSP, 4 Place Jussieu, F-75005 Paris, France
| | - Laurent Legrand
- Sorbonne Université, CNRS-UMR 7588, Institut des NanoSciences de Paris, INSP, 4 Place Jussieu, F-75005 Paris, France
| | - Thierry Barisien
- Cavendish Laboratory, University of Cambridge, J.J. Thomson Avenue, CB3 0HE, Cambridge, United Kingdom
| | - Richard H Friend
- Cavendish Laboratory, University of Cambridge, J.J. Thomson Avenue, CB3 0HE, Cambridge, United Kingdom
| | - Neil C Greenham
- Cavendish Laboratory, University of Cambridge, J.J. Thomson Avenue, CB3 0HE, Cambridge, United Kingdom
| | - Akshay Rao
- Cavendish Laboratory, University of Cambridge, J.J. Thomson Avenue, CB3 0HE, Cambridge, United Kingdom
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16
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Luo Y, Shan H, Gao X, Qi P, Li Y, Li B, Rong X, Shen B, Zhang H, Lin F, Tang Z, Fang Z. Photoluminescence enhancement of MoS 2/CdSe quantum rod heterostructures induced by energy transfer and exciton-exciton annihilation suppression. NANOSCALE HORIZONS 2020; 5:971-977. [PMID: 32313908 DOI: 10.1039/c9nh00802k] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Energy transfer in heterostructures is an essential interface interaction for extraordinary energy conversion properties, which promote promising applications in light-emitting and photovoltaic devices. However, when atomic-layered transition metal dichalcogenides (TMDCs) act as the energy acceptor because of strong Coulomb interactions, the transferred energy can be consumed by nonradiative exciton annihilations, which hampers the development of light-emitting devices. Hence, revealing the mechanism of energy transfer and the related relaxation processes from the aspect of the acceptor in the heterostructure is key to reducing nonradiative loss and optimizing luminescence. Here, we study the exciton dynamics from the standpoint of the acceptor in MoS2/CdSe quantum rod (QR) heterostructures and realize efficiently enhanced photoluminescence (PL). Through femtosecond pump-probe measurements, it is directly observed that energy transfer from CdSe QRs largely raises the exciton population of the acceptor, MoS2, providing a larger emission "source". In addition, the dielectric environment introduced by CdSe QRs efficiently enhances the PL by suppressing exciton-exciton annihilation (EEA). This study provides new insights for on-chip applications such as light-emitting diodes and optical conversion devices based on low dimensional semiconductor heterostructures.
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Affiliation(s)
- Yang Luo
- School of Physics, State Key Laboratory for Mesoscopic Physics, Academy for Advanced Interdisciplinary Studies, Collaborative Innovation Center of Quantum Matter, and Nano-optoelectronics Frontier Center of Ministry of Education, Peking University, Beijing 100871, P. R. China.
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17
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Zhou H, Xiao C, Yang Z, Du Y. 3D structured materials and devices for artificial photosynthesis. NANOTECHNOLOGY 2020; 31:282001. [PMID: 32240995 DOI: 10.1088/1361-6528/ab85ea] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Artificial photosynthesis is an effective way to convert solar energy into fuels, which is of great significance to energy production and reduction of atmospheric CO2 content. In recent years, 3D structured artificial photosynthetic system has made great progress as an effective design strategy. This review first highlights several typical mechanisms for improved artificial photosynthesis with 3D structures: improved light harvesting, mass transfer and charge separation. Then, we summarize typical examples of 3D structured artificial photosynthetic systems, including bioinspired structures, photonic crystals (PC), designed photonic structures (PC coupling structure, plasmon resonance structure, optical resonance structure, metamaterials), 3D-printed systems, nanowire integrated systems and hierarchical 3D structures. Finally, we discuss the problems and challenges to the application and development of 3D artificial photosynthetic system and the possible trends of future development. We hope this review can inspire more progress in the field of artificial photosynthesis.
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Affiliation(s)
- Han Zhou
- State Key Lab of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiaotong University, Shanghai 200240, People's Republic of China
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18
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Tang S, Xing X, Yu W, Sun J, Xuan Y, Wang L, Xu Y, Hong H, Jin H. Synergizing Photo-Thermal H 2 and Photovoltaics into a Concentrated Sunlight Use. iScience 2020; 23:101012. [PMID: 32278287 PMCID: PMC7152679 DOI: 10.1016/j.isci.2020.101012] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2020] [Revised: 02/13/2020] [Accepted: 03/19/2020] [Indexed: 11/24/2022] Open
Abstract
Solar hydrogen and electricity are promising high energy-density renewable sources. Although photochemistry or photovoltaics are attractive routes, special challenge arises in sunlight conversion efficiency. To improve efficiency, various semiconductor materials have been proposed with selective sunlight absorption. Here, we reported a hybrid system synergizing photo-thermochemical hydrogen and photovoltaics, harvesting full-spectrum sunlight in a cascade manner. A simple suspension of Au-TiO2 in water/methanol serves as a spectrum selector, absorbing ultraviolet-visible and infrared energy for rapid photo-thermochemical hydrogen production. The transmitted visible and near-infrared energy fits the photovoltaic bandgap and retains the high efficiency of a commercial photovoltaic cell under different solar concentration values. The experimental design achieved an overall efficiency of 4.2% under 12 suns solar concentration. Furthermore, the results demonstrated a reduced energy loss in full-spectrum energy conversion into hydrogen and electricity. Such simple integration of photo-thermochemical hydrogen and photovoltaics would create a pathway toward cascading use of sunlight energy. An integration of both photothermal H2 and PV was proposed at full solar spectrum Absorbed UV-vis and IR generate H2 faster than reported full-spectrum catalysis Transmitted Vis and near-IR bands retain the high efficiency of commercial PV cells A novel device was designed with experimental overall efficiency of 4.2% at 12 suns
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Affiliation(s)
- Sanli Tang
- University of Chinese Academy of Sciences, Beijing 100049, China; Institute of Engineering Thermophysics, Chinese Academy of Sciences, Beijing 100190, China; Solar Fuels Group, Department of Chemistry, University of Toronto, 80 St. George Street, Toronto M5S 3H6, Canada
| | - Xueli Xing
- University of Chinese Academy of Sciences, Beijing 100049, China; Institute of Engineering Thermophysics, Chinese Academy of Sciences, Beijing 100190, China
| | - Wei Yu
- School of Environmental and Materials Engineering, College of Engineering, Shanghai Polytechnic University, Shanghai 201209, China
| | - Jie Sun
- School of Chemical Engineering and Technology, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China
| | - Yimin Xuan
- School of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
| | - Lu Wang
- Solar Fuels Group, Department of Chemistry, University of Toronto, 80 St. George Street, Toronto M5S 3H6, Canada
| | - Yangfan Xu
- Solar Fuels Group, Department of Chemistry, University of Toronto, 80 St. George Street, Toronto M5S 3H6, Canada
| | - Hui Hong
- University of Chinese Academy of Sciences, Beijing 100049, China; Institute of Engineering Thermophysics, Chinese Academy of Sciences, Beijing 100190, China.
| | - Hongguang Jin
- University of Chinese Academy of Sciences, Beijing 100049, China; Institute of Engineering Thermophysics, Chinese Academy of Sciences, Beijing 100190, China
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19
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Cassidy J, Zamkov M. Nanoshell quantum dots: Quantum confinement beyond the exciton Bohr radius. J Chem Phys 2020; 152:110902. [PMID: 32199442 DOI: 10.1063/1.5126423] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Nanoshell quantum dots (QDs) represent a novel class of colloidal semiconductor nanocrystals (NCs), which supports tunable optoelectronic properties over the extended range of particle sizes. Traditionally, the ability to control the bandgap of colloidal semiconductor NCs is limited to small-size nanostructures, where photoinduced charges are confined by Coulomb interactions. A notorious drawback of such a restricted size range concerns the fact that assemblies of smaller nanoparticles tend to exhibit a greater density of interfacial and surface defects. This presents a potential problem for device applications of semiconductor NCs where the charge transport across nanoparticle films is important, as in the case of solar cells, field-effect transistors, and photoelectrochemical devices. The morphology of nanoshell QDs addresses this issue by enabling the quantum-confinement in the shell layer, where two-dimensional excitons can exist, regardless of the total particle size. Such a geometry exhibits one of the lowest surface-to-volume ratios among existing QD architectures and, therefore, could potentially lead to improved charge-transport and multi-exciton characteristics. The expected benefits of the nanoshell architecture were recently demonstrated by a number of reports on the CdSbulk/CdSe nanoshell model system, showing an improved photoconductivity of solids and increased lifetime of multi-exciton populations. Along these lines, this perspective will summarize the recent work on CdSbulk/CdSe nanoshell colloids and discuss the possibility of employing other nanoshell semiconductor combinations in light-harvesting and lasing applications.
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Affiliation(s)
- James Cassidy
- The Center for Photochemical Sciences, Bowling Green State University, Bowling Green, Ohio 43403, USA
| | - Mikhail Zamkov
- The Center for Photochemical Sciences, Bowling Green State University, Bowling Green, Ohio 43403, USA
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20
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Abstract
Production of H2, O2, and some useful chemicals by solar water splitting is widely expected to be one of the ultimate technologies in solving energy and environmental problems worldwide. Plasmonic enhancement of photocatalytic water splitting is attracting much attention. However, the enhancement factors reported so far are not as high as expected. Hence, further investigation of the plasmonic photocatalysts for water splitting is now needed. In this paper, recent work demonstrating plasmonic photocatalytic water splitting is reviewed. Particular emphasis is given to the fabrication process and the morphological features of the plasmonic photocatalysts.
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21
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Huang HJ, Wang YH, Chau YFC, Chiang HP, Wu JCS. Magnetic Field-Enhancing Photocatalytic Reaction in Micro Optofluidic Chip Reactor. NANOSCALE RESEARCH LETTERS 2019; 14:323. [PMID: 31617012 PMCID: PMC6794336 DOI: 10.1186/s11671-019-3153-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2019] [Accepted: 09/09/2019] [Indexed: 06/01/2023]
Abstract
A small external magnetic field (100-1000 Oe) was demonstrated to enhance the photocatalytic degradation of methyl orange (MO) using TiO2 NPs in micro optofluidic chip (MOFC) reactors. The rectangular shape of the fluidic channel and TiO2 deposited only onto the lower glass substrate leads to a selectively enhancing photocatalytic reactions by magnetic field in specific directions. Utilizing ethyl alcohol as a scavenger presented the difference between generated hot-hole (hVB+) and hot-electron (eCB-) pathways of photocatalytic reactions. Effects of dissolved oxygen (DO) and hydroxyl ions (OH-) are all demonstrated in a magnetic field-enhancing photocatalytic reaction. The experimental results demonstrate great potential for practical applications utilizing low-price fixed magnets in the field of green chemistry.
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Affiliation(s)
- Hung Ji Huang
- Taiwan Instrument Research Institute, National Applied Research Laboratories, Hsinchu, Taiwan
| | - Yen Han Wang
- Department of Chemical Engineering, National Taiwan University, Taipei, Taiwan
| | - Yuan-Fong Chou Chau
- Centre for Advanced Material and Energy Sciences, Universiti Brunei Darussalam, Gadong, Negara Brunei Darussalam
| | - Hai-Pang Chiang
- Institute of Optoelectronic Sciences, National Taiwan Ocean University, Keelung, Taiwan
- Institute of Physics, Academia Sinica, Taipei, Taiwan
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22
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Pandya R, Steinmetz V, Puttisong Y, Dufour M, Chen WM, Chen RYS, Barisien T, Sharma A, Lakhwani G, Mitioglu A, Christianen PCM, Legrand L, Bernardot F, Testelin C, Chin AW, Ithurria S, Chamarro M, Rao A. Fine Structure and Spin Dynamics of Linearly Polarized Indirect Excitons in Two-Dimensional CdSe/CdTe Colloidal Heterostructures. ACS NANO 2019; 13:10140-10153. [PMID: 31490653 DOI: 10.1021/acsnano.9b03252] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Heterostructured two-dimensional colloidal nanoplatelets are a class of material that has attracted great interest for optoelectronic applications due to their high photoluminescence yield, atomically tunable thickness, and ultralow lasing thresholds. Of particular interest are laterally heterostructured core-crown nanoplatelets with a type-II band alignment, where the in-plane spatial separation of carriers leads to indirect (or charge transfer) excitons with long lifetimes and bright, highly Stokes shifted emission. Despite this, little is known about the nature of the lowest energy exciton states responsible for emission in these materials. Here, using polarization-controlled, steady-state, and time-resolved photoluminescence measurements, at temperatures down to 1.6 K and magnetic fields up to 30 T, we study the exciton fine structure and spin dynamics of archetypal type-II CdSe/CdTe core-crown nanoplatelets. Complemented by theoretical modeling and zero-field quantum beat measurements, we find the bright-exciton fine structure consists of two linearly polarized states with a fine structure splitting ∼50 μeV and an indirect exciton Landé g-factor of 0.7. In addition, we show the exciton spin lifetime to be in the microsecond range with an unusual B-3 magnetic field dependence. The discovery of linearly polarized exciton states and emission highlights the potential for use of such materials in display and imaging applications without polarization filters. Furthermore, the small exciton fine structure splitting and a long spin lifetime are fundamental advantages when envisaging CdSe/CdTe nanoplatelets as elementary bricks for the next generation of quantum devices, particularly given their ease of fabrication.
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Affiliation(s)
- Raj Pandya
- Cavendish Laboratory , University of Cambridge , J.J. Thomson Avenue , CB3 0HE Cambridge , United Kingdom
| | - Violette Steinmetz
- Sorbonne Université CNRS-UMR 7588, Institut des NanoSciences de Paris , INSP, 4 place Jussieu , F-75005 Paris , France
| | - Yuttapoom Puttisong
- Functional Electronic Materials, Department of Physics, Chemistry and Biology , Linköping University , 58183 Linköping , Sweden
| | - Marion Dufour
- Laboratoire de Physique et d'Etude des Matériaux, ESPCI Paris , PSL Research University, CNRS , 10 rue Vauquelin , 75005 Paris , France
| | - Weimin M Chen
- Functional Electronic Materials, Department of Physics, Chemistry and Biology , Linköping University , 58183 Linköping , Sweden
| | - Richard Y S Chen
- Cavendish Laboratory , University of Cambridge , J.J. Thomson Avenue , CB3 0HE Cambridge , United Kingdom
| | - Thierry Barisien
- Sorbonne Université CNRS-UMR 7588, Institut des NanoSciences de Paris , INSP, 4 place Jussieu , F-75005 Paris , France
| | - Ashish Sharma
- ARC Centre of Excellence in Exciton Science, School of Chemistry , The University of Sydney , Sydney , New South Wales 2006 , Australia
| | - Girish Lakhwani
- ARC Centre of Excellence in Exciton Science, School of Chemistry , The University of Sydney , Sydney , New South Wales 2006 , Australia
| | - Anatolie Mitioglu
- High Field Magnet Laboratory (HFML - EMFL) , Radboud University , 6525 ED Nijmegen , The Netherlands
| | - Peter C M Christianen
- High Field Magnet Laboratory (HFML - EMFL) , Radboud University , 6525 ED Nijmegen , The Netherlands
| | - Laurent Legrand
- Sorbonne Université CNRS-UMR 7588, Institut des NanoSciences de Paris , INSP, 4 place Jussieu , F-75005 Paris , France
| | - Frédérick Bernardot
- Sorbonne Université CNRS-UMR 7588, Institut des NanoSciences de Paris , INSP, 4 place Jussieu , F-75005 Paris , France
| | - Christophe Testelin
- Sorbonne Université CNRS-UMR 7588, Institut des NanoSciences de Paris , INSP, 4 place Jussieu , F-75005 Paris , France
| | - Alex W Chin
- Sorbonne Université CNRS-UMR 7588, Institut des NanoSciences de Paris , INSP, 4 place Jussieu , F-75005 Paris , France
| | - Sandrine Ithurria
- Laboratoire de Physique et d'Etude des Matériaux, ESPCI Paris , PSL Research University, CNRS , 10 rue Vauquelin , 75005 Paris , France
| | - Maria Chamarro
- Sorbonne Université CNRS-UMR 7588, Institut des NanoSciences de Paris , INSP, 4 place Jussieu , F-75005 Paris , France
| | - Akshay Rao
- Cavendish Laboratory , University of Cambridge , J.J. Thomson Avenue , CB3 0HE Cambridge , United Kingdom
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23
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Yang M, Moroz P, Jin Z, Budkina DS, Sundrani N, Porotnikov D, Cassidy J, Sugiyama Y, Tarnovsky AN, Mattoussi H, Zamkov M. Delayed Photoluminescence in Metal-Conjugated Fluorophores. J Am Chem Soc 2019; 141:11286-11297. [DOI: 10.1021/jacs.9b04697] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
| | | | - Zhicheng Jin
- Department of Chemistry, Biochemistry, Florida State University, Tallahassee, Florida 32303, United States
| | | | | | | | | | - Yuya Sugiyama
- Asahi-Kasei Corporation, Healthcare R&D Center, 2-1 Samejima, Fuji City, Shizuoka 416-8501 Japan
| | | | - Hedi Mattoussi
- Department of Chemistry, Biochemistry, Florida State University, Tallahassee, Florida 32303, United States
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24
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Dutta A, Naldoni A, Malara F, Govorov AO, Shalaev VM, Boltasseva A. Gap-plasmon enhanced water splitting with ultrathin hematite films: the role of plasmonic-based light trapping and hot electrons. Faraday Discuss 2019; 214:283-295. [PMID: 30821797 DOI: 10.1039/c8fd00148k] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Hydrogen is a promising alternative renewable fuel for meeting the growing energy demands of the world. Over the past few decades, photoelectrochemical water splitting has been widely studied as a viable technology for the production of hydrogen utilizing solar energy. A solar-to-hydrogen (STH) efficiency of 10% is considered to be sufficient for practical applications. Amongst the wide class of semiconductors that have been studied for their application in solar water splitting, iron oxide (α-Fe2O3), or hematite, is one of the more promising candidate materials, with a theoretical STH efficiency of 15%. In this work, we show experimentally that by utilizing gold nanostructures that support gap-plasmon resonances together with a hematite layer, we can increase the water oxidation photocurrent by two times over that demonstrated by a bare hematite film at wavelengths above the hematite bandgap. Moreover, we achieve a six-fold increase in the oxidation photocurrent at near-infrared wavelengths, which is attributed to hot electron generation and decay in the gap-plasmon nanostructures. Theoretical simulations confirmed that the metamaterial geometry with gap plasmons that was used allows us to confine electromagnetic fields inside the hematite semiconductor and to enhance the surface photochemistry.
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Affiliation(s)
- Aveek Dutta
- School of Electrical and Computer Engineering, Purdue University, IN-47907, USA. and Birck Nanotechnology Center, Purdue University, West Lafayette, IN-47907, USA
| | - Alberto Naldoni
- Regional Center for Advanced Technologies and Materials, Olomouc-78371, Czech Republic.
| | - Francesco Malara
- CNR-Istituto di Scienze e Tecnologie Molecolari, Via Golgi 19, 20133 Milan, Italy
| | - Alexander O Govorov
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 610054, China and Department of Physics and Astronomy, Ohio University, Athens OH-45701, USA
| | - Vladimir M Shalaev
- School of Electrical and Computer Engineering, Purdue University, IN-47907, USA. and Birck Nanotechnology Center, Purdue University, West Lafayette, IN-47907, USA
| | - Alexandra Boltasseva
- School of Electrical and Computer Engineering, Purdue University, IN-47907, USA. and Birck Nanotechnology Center, Purdue University, West Lafayette, IN-47907, USA
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25
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Pandya R, Chen RYS, Cheminal A, Dufour M, Richter JM, Thomas TH, Ahmed S, Sadhanala A, Booker EP, Divitini G, Deschler F, Greenham NC, Ithurria S, Rao A. Exciton–Phonon Interactions Govern Charge-Transfer-State Dynamics in CdSe/CdTe Two-Dimensional Colloidal Heterostructures. J Am Chem Soc 2018; 140:14097-14111. [DOI: 10.1021/jacs.8b05842] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Raj Pandya
- Cavendish Laboratory, University of Cambridge, J.J. Thompson Avenue, CB3 0HE, Cambridge, United Kingdom
| | - Richard Y. S. Chen
- Cavendish Laboratory, University of Cambridge, J.J. Thompson Avenue, CB3 0HE, Cambridge, United Kingdom
| | - Alexandre Cheminal
- Cavendish Laboratory, University of Cambridge, J.J. Thompson Avenue, CB3 0HE, Cambridge, United Kingdom
| | - Marion Dufour
- LPEM, ESPCI Paris, PSL Research University, CNRS, 10 Rue Vauquelin, 75005 Paris, France
| | - Johannes M. Richter
- Cavendish Laboratory, University of Cambridge, J.J. Thompson Avenue, CB3 0HE, Cambridge, United Kingdom
| | - Tudor H. Thomas
- Cavendish Laboratory, University of Cambridge, J.J. Thompson Avenue, CB3 0HE, Cambridge, United Kingdom
| | - Shahab Ahmed
- Institute for Manufacturing, Department of Engineering, University of Cambridge, 17 Charles Babbage Road, CB3 0FS, Cambridge, United Kingdom
| | - Aditya Sadhanala
- Cavendish Laboratory, University of Cambridge, J.J. Thompson Avenue, CB3 0HE, Cambridge, United Kingdom
| | - Edward P. Booker
- Cavendish Laboratory, University of Cambridge, J.J. Thompson Avenue, CB3 0HE, Cambridge, United Kingdom
| | - Giorgio Divitini
- Department of Materials Science and Metallurgy, University of Cambridge, 27 Charles Babbage Road, CB3 0FS, Cambridge, United Kingdom
| | - Felix Deschler
- Cavendish Laboratory, University of Cambridge, J.J. Thompson Avenue, CB3 0HE, Cambridge, United Kingdom
| | - Neil C. Greenham
- Cavendish Laboratory, University of Cambridge, J.J. Thompson Avenue, CB3 0HE, Cambridge, United Kingdom
| | - Sandrine Ithurria
- LPEM, ESPCI Paris, PSL Research University, CNRS, 10 Rue Vauquelin, 75005 Paris, France
| | - Akshay Rao
- Cavendish Laboratory, University of Cambridge, J.J. Thompson Avenue, CB3 0HE, Cambridge, United Kingdom
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26
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Lazareva EP, Kozlovskii VF, Vasiliev RB, Gaskov AM. Tin Domain Growth on Quasi-Two-Dimensional CdTe and CdSe Nanoparticles. RUSS J INORG CHEM+ 2018. [DOI: 10.1134/s0036023618050133] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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27
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Stolarczyk JK, Bhattacharyya S, Polavarapu L, Feldmann J. Challenges and Prospects in Solar Water Splitting and CO2 Reduction with Inorganic and Hybrid Nanostructures. ACS Catal 2018. [DOI: 10.1021/acscatal.8b00791] [Citation(s) in RCA: 285] [Impact Index Per Article: 47.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jacek K. Stolarczyk
- Photonics and Optoelectronics Group, Department of Physics and Center for Nanoscience (CeNS), Ludwig-Maximilians-Universität München, Amalienstraße 54, 80799 Munich, Germany
- Nanosystems Initiative Munich (NIM), Schellingstr. 4, 80799 Munich, Germany
| | - Santanu Bhattacharyya
- Photonics and Optoelectronics Group, Department of Physics and Center for Nanoscience (CeNS), Ludwig-Maximilians-Universität München, Amalienstraße 54, 80799 Munich, Germany
- Nanosystems Initiative Munich (NIM), Schellingstr. 4, 80799 Munich, Germany
| | - Lakshminarayana Polavarapu
- Photonics and Optoelectronics Group, Department of Physics and Center for Nanoscience (CeNS), Ludwig-Maximilians-Universität München, Amalienstraße 54, 80799 Munich, Germany
- Nanosystems Initiative Munich (NIM), Schellingstr. 4, 80799 Munich, Germany
| | - Jochen Feldmann
- Photonics and Optoelectronics Group, Department of Physics and Center for Nanoscience (CeNS), Ludwig-Maximilians-Universität München, Amalienstraße 54, 80799 Munich, Germany
- Nanosystems Initiative Munich (NIM), Schellingstr. 4, 80799 Munich, Germany
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28
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Klein E, Lesyuk R, Klinke C. Insights into the formation mechanism of two-dimensional lead halide nanostructures. NANOSCALE 2018; 10:4442-4451. [PMID: 29451570 PMCID: PMC5831117 DOI: 10.1039/c7nr09564c] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2017] [Accepted: 02/08/2018] [Indexed: 05/28/2023]
Abstract
We present a colloidal synthesis strategy for lead halide nanosheets with a thickness of far below 100 nm. Due to the layered structure and the synthesis parameters the crystals of PbI2 are initially composed of many polytypes. We propose a mechanism which gives insight into the chemical process of the PbI2 formation. Further, we found that the crystal structure changes with increasing reaction temperature or by performing the synthesis for longer time periods changing for the final 2H structure. In addition, we demonstrate a route to prepare nanosheets of lead bromide as well as lead chloride in a similar way. Lead halides can be used as a detector material for high-energy photons including gamma and X-rays.
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Affiliation(s)
- Eugen Klein
- Institute of Physical Chemistry , University of Hamburg , Grindelallee 117 , 20146 Hamburg , Germany .
| | - Rostyslav Lesyuk
- Institute of Physical Chemistry , University of Hamburg , Grindelallee 117 , 20146 Hamburg , Germany .
- Pidstryhach Institute for applied problems of mechanics and mathematics of NAS of Ukraine , Naukowa str. 3b , 79060 Lviv , Ukraine
| | - Christian Klinke
- Institute of Physical Chemistry , University of Hamburg , Grindelallee 117 , 20146 Hamburg , Germany .
- Department of Chemistry , Swansea University – Singleton Park , Swansea SA2 8PP , UK
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29
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Ghobadi TGU, Ghobadi A, Ozbay E, Karadas F. Strategies for Plasmonic Hot-Electron-Driven Photoelectrochemical Water Splitting. CHEMPHOTOCHEM 2018. [DOI: 10.1002/cptc.201700165] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Turkan Gamze Ulusoy Ghobadi
- UNAM-National Nanotechnology Research Center; Bilkent University; Ankara 06800 Turkey
- Institute of Materials Science and Nanotechnology; Bilkent University; Ankara 06800 Turkey
- Department of Energy Engineering; Faculty of Engineering; Ankara University; Ankara 06830 Turkey
| | - Amir Ghobadi
- NANOTAM- Nanotechnology Research Center; Bilkent University; Ankara 06800 Turkey
- Department of Electrical and Electronics Engineering; Bilkent University; Ankara 06800 Turkey
| | - Ekmel Ozbay
- UNAM-National Nanotechnology Research Center; Bilkent University; Ankara 06800 Turkey
- NANOTAM- Nanotechnology Research Center; Bilkent University; Ankara 06800 Turkey
- Department of Electrical and Electronics Engineering; Bilkent University; Ankara 06800 Turkey
- Department of Physics; Bilkent University; Ankara 06800 Turkey
| | - Ferdi Karadas
- UNAM-National Nanotechnology Research Center; Bilkent University; Ankara 06800 Turkey
- Department of Chemistry; Bilkent University; Ankara 06800 Turkey
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30
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Yan L, Xu J, Wang F, Meng S. Plasmon-Induced Ultrafast Hydrogen Production in Liquid Water. J Phys Chem Lett 2018; 9:63-69. [PMID: 29220189 DOI: 10.1021/acs.jpclett.7b02957] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Hydrogen gas production from solar water splitting provides a renewable energy cycle to address the grand global energy challenge; however, its dynamics and fundamental mechanism remain elusive. We directly explore by first-principles the ultrafast electron-nuclear quantum dynamics on the time scale of ∼100 fs during water photosplitting on a plasmonic cluster embedded in liquid water. Water molecule splitting is assisted by rapid proton transport in liquid water in a Grotthuss-like mechanism. We identify that a plasmon-induced field enhancement effect dominates water splitting, while charge transfer from gold to the antibonding orbital of a water molecule also plays an important role. "Chain-reaction" like rapid H2 production is observed via the combination of two hydrogen atoms from different water molecules. These results provide a route toward a complete understanding of water photosplitting in the ultimate time and spatial limit.
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Affiliation(s)
- Lei Yan
- Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences , Beijing 100190, China
| | - Jiyu Xu
- Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences , Beijing 100190, China
| | - Fangwei Wang
- Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences , Beijing 100190, China
| | - Sheng Meng
- Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences , Beijing 100190, China
- Collaborative Innovation Centre of Quantum Matter , Beijing 100190, China
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31
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Masudy-Panah S, Siavash Moakhar R, Chua CS, Kushwaha A, Dalapati GK. Stable and Efficient CuO Based Photocathode through Oxygen-Rich Composition and Au-Pd Nanostructure Incorporation for Solar-Hydrogen Production. ACS APPLIED MATERIALS & INTERFACES 2017; 9:27596-27606. [PMID: 28731678 DOI: 10.1021/acsami.7b02685] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Enhancing stability against photocorrosion and improving photocurrent response are the main challenges toward the development of cupric oxide (CuO) based photocathodes for solar-driven hydrogen production. In this paper, stable and efficient CuO-photocathodes have been developed using in situ materials engineering and through gold-palladium (Au-Pd) nanoparticles deposition on the CuO surface. The CuO photocathode exhibits a photocurrent generation of ∼3 mA/cm2 at 0 V v/s RHE. Time-of-flight secondary ion mass spectrometry (TOF-SIMS) analysis and X-ray spectroscopy (XPS) confirm the formation of oxygen-rich (O-rich) CuO film which demonstrates a highly stable photocathode with retained photocurrent of ∼90% for 20 min. The influence of chemical composition on the photocathode performance and stability has been discussed in detail. In addition, O-rich CuO photocathodes deposited with Au-Pd nanostructures have shown enhanced photoelectrochemical performance. Linear scan voltammetry characteristic shows ∼25% enhancement in photocurrent after Au-Pd deposition and reaches ∼4 mA/cm2 at "0" V v/s RHE. Hydrogen evolution rate significantly depends on the elemental composition of CuO and metal nanostructure. The present work has demonstrated a stable photocathode with high photocurrent for visible-light-driven water splitting and hydrogen production.
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Affiliation(s)
- Saeid Masudy-Panah
- Institute of Materials Research and Engineering, A*STAR (Agency for Science, Technology and Research) , 2 Fusionopolis Way, Innovis, #08-03, Singapore 138634
- Low Energy Electronic System (LEES), Singapore-MIT Alliance for Research and Technology (SMART) , 1 CREATE Way, #09-01/02 CREATE Tower, Singapore 138602
- Electrical and Computer Engineering, National University of Singapore , Singapore 119260
| | - Roozbeh Siavash Moakhar
- Institute of Materials Research and Engineering, A*STAR (Agency for Science, Technology and Research) , 2 Fusionopolis Way, Innovis, #08-03, Singapore 138634
- Department of Materials Science and Engineering, Sharif University of Technology , Tehran 11155-9466, Iran
| | - Chin Sheng Chua
- Institute of Materials Research and Engineering, A*STAR (Agency for Science, Technology and Research) , 2 Fusionopolis Way, Innovis, #08-03, Singapore 138634
| | - Ajay Kushwaha
- Institute of Materials Research and Engineering, A*STAR (Agency for Science, Technology and Research) , 2 Fusionopolis Way, Innovis, #08-03, Singapore 138634
- Discipline of Metallurgy Engineering and Materials Science, IIT Indore , Indore, Madhya Pradesh 453552, India
| | - Goutam Kumar Dalapati
- Institute of Materials Research and Engineering, A*STAR (Agency for Science, Technology and Research) , 2 Fusionopolis Way, Innovis, #08-03, Singapore 138634
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32
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Deacon WM, Lombardi A, Benz F, Del Valle-Inclan Redondo Y, Chikkaraddy R, de Nijs B, Kleemann ME, Mertens J, Baumberg JJ. Interrogating Nanojunctions Using Ultraconfined Acoustoplasmonic Coupling. PHYSICAL REVIEW LETTERS 2017; 119:023901. [PMID: 28753345 DOI: 10.1103/physrevlett.119.023901] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2016] [Indexed: 06/07/2023]
Abstract
Single nanoparticles are shown to develop a localized acoustic resonance, the bouncing mode, when placed on a substrate. If both substrate and nanoparticle are noble metals, plasmonic coupling of the nanoparticle to its image charges in the film induces tight light confinement in the nanogap. This yields ultrastrong "acoustoplasmonic" coupling with a figure of merit 7 orders of magnitude higher than conventional acousto-optic modulators. The plasmons thus act as a local vibrational probe of the contact geometry. A simple analytical mechanical model is found to describe the bouncing mode in terms of the nanoscale structure, allowing transient pump-probe spectroscopy to directly measure the contact area for individual nanoparticles.
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Affiliation(s)
- William M Deacon
- Nanophotonics Centre, Cavendish Laboratory, University of Cambridge, Cambridge CB3 0HE, United Kingdom
| | - Anna Lombardi
- Nanophotonics Centre, Cavendish Laboratory, University of Cambridge, Cambridge CB3 0HE, United Kingdom
| | - Felix Benz
- Nanophotonics Centre, Cavendish Laboratory, University of Cambridge, Cambridge CB3 0HE, United Kingdom
| | | | - Rohit Chikkaraddy
- Nanophotonics Centre, Cavendish Laboratory, University of Cambridge, Cambridge CB3 0HE, United Kingdom
| | - Bart de Nijs
- Nanophotonics Centre, Cavendish Laboratory, University of Cambridge, Cambridge CB3 0HE, United Kingdom
| | - Marie-Elena Kleemann
- Nanophotonics Centre, Cavendish Laboratory, University of Cambridge, Cambridge CB3 0HE, United Kingdom
| | - Jan Mertens
- Nanophotonics Centre, Cavendish Laboratory, University of Cambridge, Cambridge CB3 0HE, United Kingdom
| | - Jeremy J Baumberg
- Nanophotonics Centre, Cavendish Laboratory, University of Cambridge, Cambridge CB3 0HE, United Kingdom
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33
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Shi R, Cao Y, Bao Y, Zhao Y, Waterhouse GIN, Fang Z, Wu LZ, Tung CH, Yin Y, Zhang T. Self-Assembled Au/CdSe Nanocrystal Clusters for Plasmon-Mediated Photocatalytic Hydrogen Evolution. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2017; 29. [PMID: 28497896 DOI: 10.1002/adma.201700803] [Citation(s) in RCA: 134] [Impact Index Per Article: 19.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2017] [Revised: 03/14/2017] [Indexed: 05/06/2023]
Abstract
Plasmon-mediated photocatalytic systems generally suffer from poor efficiency due to weak absorption overlap and thus limited energy transfer between the plasmonic metal and the semiconductor. Herein, a near-ideal plasmon-mediated photocatalyst system is developed. Au/CdSe nanocrystal clusters (NCs) are successfully fabricated through a facile emulsion-based self-assembly approach, containing Au nanoparticles (NPs) of size 2.8, 4.6, 7.2, or 9.0 nm and CdSe quantum dots (QDs) of size ≈3.3 nm. Under visible-light irradiation, the Au/CdSe NCs with 7.2 nm Au NPs afford very stable operation and a remarkable H2 -evolution rate of 73 mmol gCdSe-1 h-1 (10× higher than bare CdSe NCs). Plasmon resonance energy transfer from the Au NPs to the CdSe QDs, which enhances charge-carrier generation in the semiconductor and suppresses bulk recombination, is responsible for the outstanding photocatalytic performance. The approach used here to fabricate the Au/CdSe NCs is suitable for the construction of other plasmon-mediated photocatalysts.
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Affiliation(s)
- Run Shi
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
- University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Yinhu Cao
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
| | - Yanjun Bao
- School of Physics, State Key Lab for Mesoscopic Physics, Peking University and Collaborative Innovation Center of Quantum Matter, Beijing, 100871, P. R. China
| | - Yufei Zhao
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
| | | | - Zheyu Fang
- School of Physics, State Key Lab for Mesoscopic Physics, Peking University and Collaborative Innovation Center of Quantum Matter, Beijing, 100871, P. R. China
| | - Li-Zhu Wu
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
| | - Chen-Ho Tung
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
| | - Yadong Yin
- Department of Chemistry, University of California, Riverside, CA, 92521, USA
| | - Tierui Zhang
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
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34
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Xia Z, Song H, Kim M, Zhou M, Chang TH, Liu D, Yin X, Xiong K, Mi H, Wang X, Xia F, Yu Z, Ma Z(J, Gan Q. Single-crystalline germanium nanomembrane photodetectors on foreign nanocavities. SCIENCE ADVANCES 2017; 3:e1602783. [PMID: 28695202 PMCID: PMC5501504 DOI: 10.1126/sciadv.1602783] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2016] [Accepted: 05/26/2017] [Indexed: 05/24/2023]
Abstract
Miniaturization of optoelectronic devices offers tremendous performance gain. As the volume of photoactive material decreases, optoelectronic performance improves, including the operation speed, the signal-to-noise ratio, and the internal quantum efficiency. Over the past decades, researchers have managed to reduce the volume of photoactive materials in solar cells and photodetectors by orders of magnitude. However, two issues arise when one continues to thin down the photoactive layers to the nanometer scale (for example, <50 nm). First, light-matter interaction becomes weak, resulting in incomplete photon absorption and low quantum efficiency. Second, it is difficult to obtain ultrathin materials with single-crystalline quality. We introduce a method to overcome these two challenges simultaneously. It uses conventional bulk semiconductor wafers, such as Si, Ge, and GaAs, to realize single-crystalline films on foreign substrates that are designed for enhanced light-matter interaction. We use a high-yield and high-throughput method to demonstrate nanometer-thin photodetectors with significantly enhanced light absorption based on nanocavity interference mechanism. These single-crystalline nanomembrane photodetectors also exhibit unique optoelectronic properties, such as the strong field effect and spectral selectivity.
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Affiliation(s)
- Zhenyang Xia
- Department of Electrical and Computer Engineering, University of Wisconsin-Madison, WI 53706, USA
| | - Haomin Song
- Department of Electrical Engineering, University at Buffalo, State University of New York, Buffalo, NY 14260, USA
| | - Munho Kim
- Department of Electrical and Computer Engineering, University of Wisconsin-Madison, WI 53706, USA
| | - Ming Zhou
- Department of Electrical and Computer Engineering, University of Wisconsin-Madison, WI 53706, USA
| | - Tzu-Hsuan Chang
- Department of Electrical and Computer Engineering, University of Wisconsin-Madison, WI 53706, USA
| | - Dong Liu
- Department of Electrical and Computer Engineering, University of Wisconsin-Madison, WI 53706, USA
| | - Xin Yin
- Department of Materials Science and Engineering, University of Wisconsin-Madison, Madison, WI 53706, USA
| | - Kanglin Xiong
- Department of Electrical and Computer Engineering, University of Wisconsin-Madison, WI 53706, USA
| | - Hongyi Mi
- Department of Electrical and Computer Engineering, University of Wisconsin-Madison, WI 53706, USA
| | - Xudong Wang
- Department of Materials Science and Engineering, University of Wisconsin-Madison, Madison, WI 53706, USA
| | - Fengnian Xia
- Department of Electrical Engineering, Yale University, New Haven, CT 06511, USA
| | - Zongfu Yu
- Department of Electrical and Computer Engineering, University of Wisconsin-Madison, WI 53706, USA
| | - Zhenqiang (Jack) Ma
- Department of Electrical and Computer Engineering, University of Wisconsin-Madison, WI 53706, USA
| | - Qiaoqiang Gan
- Department of Electrical Engineering, University at Buffalo, State University of New York, Buffalo, NY 14260, USA
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35
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Bärtsch M, Niederberger M. The Role of Interfaces in Heterostructures. Chempluschem 2017; 82:42-59. [DOI: 10.1002/cplu.201600519] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2016] [Revised: 12/16/2016] [Indexed: 11/06/2022]
Affiliation(s)
- Mario Bärtsch
- Laboratory for Multifunctional Materials; Department of Materials; ETH Zürich; Vladimir-Prelog-Weg 5 8093 Zürich Switzerland
| | - Markus Niederberger
- Laboratory for Multifunctional Materials; Department of Materials; ETH Zürich; Vladimir-Prelog-Weg 5 8093 Zürich Switzerland
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36
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Bielewicz T, Klein E, Klinke C. New ways to synthesize lead sulfide nanosheets-substituted alkanes direct the growth of 2D nanostructures. NANOTECHNOLOGY 2016; 27:355602. [PMID: 27454196 DOI: 10.1088/0957-4484/27/35/355602] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Two-dimensional colloidal nanosheets represent very attractive optoelectronic materials. They combine good lateral conductivity with solution-processability and geometry-tunable electronic properties. In the case of PbS nanosheets, so far synthesis has been driven by the addition of chloroalkanes as coligands. Here, we demonstrate how to synthesize two-dimensional lead sulfide nanostructures using other halogen alkanes and primary amines. Further, we show that at a reaction temperature of 170 °C a coligand is not even necessary and the only ligand, oleic acid, controls the anisotropic growth of the two-dimensional structures. Also, using thiourea as a sulfide source, nanosheets with lateral dimensions of over 10 μm are possible.
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Affiliation(s)
- Thomas Bielewicz
- Institute of Physical Chemistry, University of Hamburg, Grindelallee 117, 20146 Hamburg, Germany
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37
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Rabouw FT, van der Bok JC, Spinicelli P, Mahler B, Nasilowski M, Pedetti S, Dubertret B, Vanmaekelbergh D. Temporary Charge Carrier Separation Dominates the Photoluminescence Decay Dynamics of Colloidal CdSe Nanoplatelets. NANO LETTERS 2016; 16:2047-53. [PMID: 26863992 DOI: 10.1021/acs.nanolett.6b00053] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Affiliation(s)
- Freddy T. Rabouw
- Condensed Matter and Interfaces, Debye Institute for Nanomaterials Science, Princetonplein 1, 3584 CC Utrecht, The Netherlands
| | - Johanna C. van der Bok
- Condensed Matter and Interfaces, Debye Institute for Nanomaterials Science, Princetonplein 1, 3584 CC Utrecht, The Netherlands
| | - Piernicola Spinicelli
- Laboratoire de Physique et d’Etude
des Matériaux (LPEM), PSL Research University, ESPCI-ParisTech,
10 rue Vauquelin, F-75231 Paris Cedex 5, France
| | - Benoît Mahler
- Laboratoire de Physique et d’Etude
des Matériaux (LPEM), PSL Research University, ESPCI-ParisTech,
10 rue Vauquelin, F-75231 Paris Cedex 5, France
| | - Michel Nasilowski
- Laboratoire de Physique et d’Etude
des Matériaux (LPEM), PSL Research University, ESPCI-ParisTech,
10 rue Vauquelin, F-75231 Paris Cedex 5, France
| | - Silvia Pedetti
- Laboratoire de Physique et d’Etude
des Matériaux (LPEM), PSL Research University, ESPCI-ParisTech,
10 rue Vauquelin, F-75231 Paris Cedex 5, France
| | - Benoît Dubertret
- Laboratoire de Physique et d’Etude
des Matériaux (LPEM), PSL Research University, ESPCI-ParisTech,
10 rue Vauquelin, F-75231 Paris Cedex 5, France
| | - Daniël Vanmaekelbergh
- Condensed Matter and Interfaces, Debye Institute for Nanomaterials Science, Princetonplein 1, 3584 CC Utrecht, The Netherlands
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38
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Li X, Zhu J, Wei B. Hybrid nanostructures of metal/two-dimensional nanomaterials for plasmon-enhanced applications. Chem Soc Rev 2016; 45:3145-87. [DOI: 10.1039/c6cs00195e] [Citation(s) in RCA: 298] [Impact Index Per Article: 37.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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Akselrod GM, Huang J, Hoang TB, Bowen PT, Su L, Smith DR, Mikkelsen MH. Large-Area Metasurface Perfect Absorbers from Visible to Near-Infrared. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2015; 27:8028-34. [PMID: 26549512 DOI: 10.1002/adma.201503281] [Citation(s) in RCA: 109] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/07/2015] [Revised: 09/12/2015] [Indexed: 05/06/2023]
Abstract
An absorptive metasurface based on film-coupled colloidal silver nanocubes is demonstrated. The metasurfaces are fabricated using simple dip-coating methods and can be deposited over large areas and on arbitrarily shaped objects. The surfaces show nearly complete absorption, good off-angle performance, and the resonance can be tuned from the visible to the near-infrared.
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Affiliation(s)
- Gleb M Akselrod
- Center for Metamaterials and Integrated Plasmonics, Duke University, Durham, NC, 27708, USA
- Department of Electrical and Computer Engineering, Duke University, Durham, NC, 27708, USA
| | - Jiani Huang
- Center for Metamaterials and Integrated Plasmonics, Duke University, Durham, NC, 27708, USA
- Department of Physics, Duke University, Durham, NC, 27708, USA
| | - Thang B Hoang
- Center for Metamaterials and Integrated Plasmonics, Duke University, Durham, NC, 27708, USA
- Department of Physics, Duke University, Durham, NC, 27708, USA
| | - Patrick T Bowen
- Center for Metamaterials and Integrated Plasmonics, Duke University, Durham, NC, 27708, USA
- Department of Electrical and Computer Engineering, Duke University, Durham, NC, 27708, USA
| | - Logan Su
- Center for Metamaterials and Integrated Plasmonics, Duke University, Durham, NC, 27708, USA
| | - David R Smith
- Center for Metamaterials and Integrated Plasmonics, Duke University, Durham, NC, 27708, USA
- Department of Electrical and Computer Engineering, Duke University, Durham, NC, 27708, USA
- Department of Physics, Duke University, Durham, NC, 27708, USA
| | - Maiken H Mikkelsen
- Center for Metamaterials and Integrated Plasmonics, Duke University, Durham, NC, 27708, USA
- Department of Electrical and Computer Engineering, Duke University, Durham, NC, 27708, USA
- Department of Physics, Duke University, Durham, NC, 27708, USA
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Yuan YJ, Lu HW, Yu ZT, Zou ZG. Noble-Metal-Free Molybdenum Disulfide Cocatalyst for Photocatalytic Hydrogen Production. CHEMSUSCHEM 2015; 8:4113-27. [PMID: 26586523 DOI: 10.1002/cssc.201501203] [Citation(s) in RCA: 65] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/04/2015] [Indexed: 05/14/2023]
Abstract
Photocatalytic water splitting using powered semiconductors as photocatalysts represents a promising strategy for clean, low-cost, and environmentally friendly production of H2 utilizing solar energy. The loading of noble-metal cocatalysts on semiconductors can significantly enhance the solar-to-H2 conversion efficiency. However, the high cost and scarcity of noble metals counter their extensive utilization. Therefore, the use of alternative cocatalysts based on non-precious metal materials is pursued. Nanosized MoS2 cocatalysts have attracted considerable attention in the last decade as a viable alternative to improve solar-to-H2 conversion efficiency because of its superb catalytic activity, excellent stability, low cost, availability, environmental friendliness, and chemical inertness. In this perspective, the design, structures, synthesis, and application of MoS2 -based composite photocatalysts for solar H2 generation are summarized, compared, and discussed. Finally, this Review concludes with a summary and remarks on some challenges and opportunities for the future development of MoS2 -based photocatalysts.
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Affiliation(s)
- Yong-Jun Yuan
- College of Materials and Environmental Engineering, Hangzhou Dianzi University, Hangzhou, Zhejiang, 310018, P. R. China.
| | - Hong-Wei Lu
- College of Materials and Environmental Engineering, Hangzhou Dianzi University, Hangzhou, Zhejiang, 310018, P. R. China.
| | - Zhen-Tao Yu
- Ecomaterials and Renewable Energy Research Center, Jiangsu Key Laboratory for Nano Technology, College of Engineering and Applied Science, Nanjing University, Nanjing, Jiangsu, 210093, P. R. China.
| | - Zhi-Gang Zou
- Ecomaterials and Renewable Energy Research Center, Jiangsu Key Laboratory for Nano Technology, College of Engineering and Applied Science, Nanjing University, Nanjing, Jiangsu, 210093, P. R. China.
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Zhukovskyi M, Tongying P, Yashan H, Wang Y, Kuno M. Efficient Photocatalytic Hydrogen Generation from Ni Nanoparticle Decorated CdS Nanosheets. ACS Catal 2015. [DOI: 10.1021/acscatal.5b01812] [Citation(s) in RCA: 125] [Impact Index Per Article: 13.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Maksym Zhukovskyi
- Department of Chemistry and
Biochemistry, University of Notre Dame, 251 Nieuwland Science Hall, Notre Dame, Indiana 46556, United States
| | - Pornthip Tongying
- Department of Chemistry and
Biochemistry, University of Notre Dame, 251 Nieuwland Science Hall, Notre Dame, Indiana 46556, United States
| | - Halyna Yashan
- Department of Chemistry and
Biochemistry, University of Notre Dame, 251 Nieuwland Science Hall, Notre Dame, Indiana 46556, United States
| | - Yuanxing Wang
- Department of Chemistry and
Biochemistry, University of Notre Dame, 251 Nieuwland Science Hall, Notre Dame, Indiana 46556, United States
| | - Masaru Kuno
- Department of Chemistry and
Biochemistry, University of Notre Dame, 251 Nieuwland Science Hall, Notre Dame, Indiana 46556, United States
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Abstract
Surface engineering and tuning of the optoelectronic properties of wurtzite CdSxSe1−x nanosheets by ligand exchange.
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Affiliation(s)
- Pradipta Sankar Maiti
- Department of Chemistry and the Ilse Katz Institute Ben-Gurion University of the Negev
- Beer-Sheva
- Israel
| | - Maya Bar Sadan
- Department of Chemistry and the Ilse Katz Institute Ben-Gurion University of the Negev
- Beer-Sheva
- Israel
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