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Yang Q, Kang Y, Zhang C, Chen H, Zhang T, Bian Z, Su X, Xu W, Sun J, Wang P, Xu Y, Yu B, Zhao Y. A Plasmonic Optoelectronic Resistive Random-Access Memory for In-Sensor Color Image Cryptography. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2403043. [PMID: 38810136 PMCID: PMC11304321 DOI: 10.1002/advs.202403043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2024] [Revised: 05/17/2024] [Indexed: 05/31/2024]
Abstract
The optoelectronic resistive random-access memory (RRAM) with the integrated function of perception, storage and intrinsic randomness displays promising applications in the hardware level in-sensor image cryptography. In this work, 2D hexagonal boron nitride based optoelectronic RRAM is fabricated with semitransparent noble metal (Ag or Au) as top electrodes, which can simultaneous capture color image and generate physically unclonable function (PUF) key for in-sensor color image cryptography. Surface plasmons of noble metals enable the strong light absorption to realize an efficient modulation of filament growth at nanoscale. Resistive switching curves show that the optical stimuli can impede the filament aggregation and promote the filament annihilation, which originates from photothermal effects and photogenerated hot electrons in localized surface plasmon resonance of noble metals. By selecting noble metals, the optoelectronic RRAM array can respond to distinct wavelengths and mimic the biological dichromatic cone cells to perform the color perception. Due to the intrinsic and high-quality randomness, the optoelectronic RRAM can produce a PUF key in every exposure cycle, which can be applied in the reconfigurable cryptography. The findings demonstrate an effective strategy to build optoelectronic RRAM for in-sensor color image cryptography applications.
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Affiliation(s)
- Quan Yang
- College of Integrated CircuitsHangzhou Global Scientific and Technological Innovation CentreZhejiang University38 Zheda RoadHangzhou310027China
| | - Yu Kang
- College of Integrated CircuitsHangzhou Global Scientific and Technological Innovation CentreZhejiang University38 Zheda RoadHangzhou310027China
| | - Cheng Zhang
- College of Integrated CircuitsHangzhou Global Scientific and Technological Innovation CentreZhejiang University38 Zheda RoadHangzhou310027China
| | - Haohan Chen
- College of Integrated CircuitsHangzhou Global Scientific and Technological Innovation CentreZhejiang University38 Zheda RoadHangzhou310027China
| | - Tianjiao Zhang
- College of Integrated CircuitsHangzhou Global Scientific and Technological Innovation CentreZhejiang University38 Zheda RoadHangzhou310027China
| | - Zheng Bian
- College of Integrated CircuitsHangzhou Global Scientific and Technological Innovation CentreZhejiang University38 Zheda RoadHangzhou310027China
| | - Xiangwei Su
- College of Integrated CircuitsHangzhou Global Scientific and Technological Innovation CentreZhejiang University38 Zheda RoadHangzhou310027China
| | - Wei Xu
- Research Center for Frontier Fundamental StudiesZhejiang LabHangzhou311100China
| | - Jiabao Sun
- Micro‐Nano Fabrication CenterZhejiang University38 Zheda RoadHangzhou310027China
| | - Pan Wang
- College of Optical Science and EngineeringZhejiang UniversityHangzhou310027China
| | - Yang Xu
- College of Integrated CircuitsHangzhou Global Scientific and Technological Innovation CentreZhejiang University38 Zheda RoadHangzhou310027China
| | - Bin Yu
- College of Integrated CircuitsHangzhou Global Scientific and Technological Innovation CentreZhejiang University38 Zheda RoadHangzhou310027China
| | - Yuda Zhao
- College of Integrated CircuitsHangzhou Global Scientific and Technological Innovation CentreZhejiang University38 Zheda RoadHangzhou310027China
- Key Laboratory of Optoelectronic Chemical Materials and Devices of Ministry of EducationJianghan UniversityWuhan430056China
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2
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Li S, Ling Y, Chen J, Yuan X, Zhang Z. Portable Copper-Based Electrochemical SERS Sensor for Point-of-Care Testing of Paraquat and Diquat by On-Site Electrostatic Preconcentration. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024. [PMID: 39008657 DOI: 10.1021/acs.langmuir.4c01437] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/17/2024]
Abstract
With the advent of portable Raman spectrometers, the deployment of surface-enhanced Raman spectroscopy (SERS) in point-of-care testing (POCT) has been initiated. Within any analytical framework employing SERS, the acuity and selectivity inherent to the SERS substrate are of paramount importance. In this article, we utilize in situ electrochemical passivation technology to fabricate CuI passivation film, which serves as a flexible copper-based SERS substrate. Furthermore, portable electrochemical SERS (EC-SERS) sensors were prepared by combining this with laser direct writing technology. The detection signal was amplified using electrostatic preconcentration technology, showcasing impressive sensitivity, selectivity, and stability in pesticide detection. The detected concentrations of paraquat and diquat in tea reached as low as 3.36 and 2.43 μg/kg, respectively. Furthermore, the application of electrostatic preconcentration facilitated selective target molecule aggregation on the SERS sensor, markedly increasing Raman signal strength and enabling single-molecule detection. This research introduces an innovative POCT method for pesticides, promising to advance environmental monitoring's analytical capabilities.
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Affiliation(s)
- Shilin Li
- Lab of Advanced Materials, School of Materials Sciences and Engineering, Tsinghua University, Beijing 100084, PR China
| | - Yunhan Ling
- Lab of Advanced Materials, School of Materials Sciences and Engineering, Tsinghua University, Beijing 100084, PR China
| | - Jianyue Chen
- Institute of New Functional Materials Co., Ltd, Guangxi Institute of Industrial Technology, Nanning 530200, China
| | - Xiaoming Yuan
- School of Science, China University of Geosciences, Beijing 100083, PR China
| | - Zhengjun Zhang
- Lab of Advanced Materials, School of Materials Sciences and Engineering, Tsinghua University, Beijing 100084, PR China
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3
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Chang TH, Liu YT, Chang YC, Lo AY. Fabrication of Three-Dimensional ZnO: Ga@ITO@Ag SERS-Active Substrate for Sensitive and Repeatable Detectability. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 13:163. [PMID: 36616072 PMCID: PMC9823785 DOI: 10.3390/nano13010163] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 12/20/2022] [Accepted: 12/27/2022] [Indexed: 06/17/2023]
Abstract
Vertically aligned ZnO: Ga nanotowers can be directly synthesized on a glass substrate with a ZnO seed film via the chemical bath method. A novel heterostructure of ZnO: Ga@ITO@Ag nanotowers was subsequently deposited in the ITO layer and Ag nanoparticles via the facile two-step ion-sputtering processes on the ZnO: Ga nanotowers. The appropriate ion-sputtering times of the ITO layer and Ag nanoparticles can benefit the fabrication of ZnO: Ga@ITO@Ag nanotowers with higher surface-enhanced Raman scattering (SERS) enhancement in detecting rhodamine 6G (R6G) molecules. Compared with ZnO: Ga@Ag nanotowers, ZnO: Ga@ITO@Ag nanotowers exhibited a high SERS enhancement factor of 2.25 × 108 and a lower detection limit (10-14 M) for detecting R6G molecules. In addition, the ITO layer used as an intermediate layer between ZnO: Ga nanotowers and Ag nanoparticles can improve SERS enhancement, sensitivity, uniformity, reusability, detection limit, and stability for detecting amoxicillin molecules. This phenomenon shall be ascribed to the ITO layer exhibiting a synergistic Raman enhancement effect through interfacial charge transfer for enhancing SERS activity. As a result, ZnO: Ga@ITO@Ag nanotowers can construct a three-dimensional SERS substrate for potential applications in environmentally friendly and cost-effective chemical or drug detection.
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Affiliation(s)
- Tung-Hao Chang
- Department of Radiation Oncology, Changhua Christian Hospital, Changhua 50006, Taiwan
- Department of Radiological Technology, Yuanpei University, Hsinchu 30015, Taiwan
- Department of Medical Imaging and Radiological Sciences, Central Taiwan University of Science and Technology, Taichung 40601, Taiwan
| | - Yun-Ting Liu
- Department of Materials Science and Engineering, Feng Chia University, Taichung 407102, Taiwan
| | - Yu-Cheng Chang
- Department of Materials Science and Engineering, Feng Chia University, Taichung 407102, Taiwan
| | - An-Ya Lo
- Department of Chemical and Materials Engineering, National Chin-Yi University of Technology, Taichung 411030, Taiwan
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Kwon YB, Cho SY, Jang H, Kim JH, Kim YK. Lateral Size Effect of Graphene Oxide on Its Surface-Enhanced Raman Scattering Property. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2021; 37:14205-14213. [PMID: 34806387 DOI: 10.1021/acs.langmuir.1c02670] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
The lateral size effect of graphene oxide (GO) on surfaced-enhanced Raman scattering (SERS) property is systematically investigated by using size-fractionalized GO. For the size fractionalization without changes of chemical structure, large-sized GO (LGO) and small-sized GO (SGO) are separated from the as-synthesized GO (AGO) by centrifugation and membrane filtration, respectively. The size-fractionalized GO sheets are immobilized on a solid substrate for the parallel comparison of their SERS property. As a result, we find that LGO shows considerably higher SERS property than SGO for typical Raman probes such as rhodamine 6G and crystal violet. Furthermore, the lateral size effect of GO derivatives is consistently observed when they are hybridized with plasmonic silver nanoparticles. These results indicate that LGO is superior to AGO and SGO as a SERS platform, and it is also quantitatively confirmed by calculating their enhancement factor.
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Affiliation(s)
- Yoo-Bin Kwon
- Department of Chemistry, Dongguk University, 30 Pildong-ro, Jung-gu, Seoul 04620, South Korea
| | - Se Youn Cho
- Carbon Composite Research Center, Korea Institute of Science and Technology, 92 Chudong-ro, Bongdong-eup, Wanju-gun, Jeonbuk 55324, South Korea
| | - Hongje Jang
- Department of Chemistry, Kwangwoon University, 20 Gwangwoon-ro, Nowon-gu, Seoul 01897, South Korea
| | - Jae-Ho Kim
- Department of Molecular Science and Technology, Ajou University, Suwon 16499, South Korea
| | - Young-Kwan Kim
- Department of Chemistry, Dongguk University, 30 Pildong-ro, Jung-gu, Seoul 04620, South Korea
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5
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Zhu T, Sun Y, Li C, Xia Y, Wang G, Lu W, Shao M, Man B, Yang C. Film wrap nanoparticle system with the graphene nano-spacer for SERS detection. OPTICS EXPRESS 2021; 29:1360-1370. [PMID: 33726353 DOI: 10.1364/oe.410603] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Accepted: 12/17/2020] [Indexed: 06/12/2023]
Abstract
Film wrap nanoparticle system (FWPS) is proposed and fabricated to perform SERS effect, where the Ag nanoparticle was completely wrapped by Au film and the double-layered graphene was selected as the sub-nano spacer. In this system, the designed nanostructure can be fully rather than partly used to generate hotspots and absorb probe molecules, compared to the nanoparticle to nanoparticle system (PTPS) or nanoparticle to film system (PTFS). The optimal fabricating condition and performance of this system were studied by the COMSOL Multiphysics. The simulation results show that the strongly large-scale localized electromagnetic field appears in the whole space between the Ag nanoparticle and Au film. The experimental results show that the FWPS presents excellent sensitivity (crystal violet (CV): 10-11 M), uniformity, stability and high enhancement factor (EF: 2.23×108). Malachite green (MG; 10-10 M) on the surface of fish and DNA strands with different base sequence (A, T, C) were successfully detected. These advanced results indicate that FWPS is highly promising to be applied for the detection of environmental pollution and biomolecules.
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Roxby DN, Rivy H, Gong C, Gong X, Yuan Z, Chang GE, Chen YC. Microalgae living sensor for metal ion detection with nanocavity-enhanced photoelectrochemistry. Biosens Bioelectron 2020; 165:112420. [DOI: 10.1016/j.bios.2020.112420] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2020] [Revised: 06/13/2020] [Accepted: 06/30/2020] [Indexed: 01/07/2023]
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7
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Hou L, Shao M, Li Z, Zhao X, Liu A, Zhang C, Xiu X, Yu J, Li Z. Elevating the density and intensity of hot spots by repeated annealing for high-efficiency SERS. OPTICS EXPRESS 2020; 28:29357-29367. [PMID: 33114837 DOI: 10.1364/oe.403940] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Accepted: 09/09/2020] [Indexed: 06/11/2023]
Abstract
The simultaneous output of highly sensitive and reproducible signals for surface-enhanced Raman spectroscopy (SERS) technology remains difficult. Here, we propose a two-dimensional (2D) composite structure using the repeated annealing method with MoS2 film as the molecular adsorbent. This method provides enlarged Au nanoparticle (NP) density with much smaller gap spacing, and thus dramatically increases the density and intensity of hot spots. The MoS2 films distribute among the hot spots, which is beneficial for uniform molecular adsorption, and further increases the sensitivity of the SERS substrate. Three kinds of molecules were used to evaluate the SERS substrate. Ultra-sensitive, highly repetitive, and stable SERS signals were obtained, which would promote the application process of SERS technology in quantitative analysis and detection.
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8
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Li Z, Li C, Yu J, Li Z, Zhao X, Liu A, Jiang S, Yang C, Zhang C, Man B. Aluminum nanoparticle films with an enhanced hot-spot intensity for high-efficiency SERS. OPTICS EXPRESS 2020; 28:9174-9185. [PMID: 32225529 DOI: 10.1364/oe.389886] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2020] [Accepted: 03/06/2020] [Indexed: 06/10/2023]
Abstract
The weak plasmonic coupling intensity in an aluminum (Al) nanostructure has limited potential applications in excellent low-cost surface-enhanced Raman scattering (SERS) substrates and light harvesting. In this report, we aim to elevate the plasmonic coupling intensity by fabricating an Al nanoparticle (NP)-film system. In the system, the Al NP are fabricated directly on different Al film layers, and the nanoscale-thick alumina interlayer obtained between neighboring Al films acts as natural dielectric gaps. Interestingly, as the number of Al film layers increase, the plasmonic couplings generated between the Al NP and Al film increase as well. It is demonstrated that the confined gap plasmon modes stimulated in the nanoscale-thick alumina region between the adjacent Al films contribute significantly to elevating the plasmonic coupling intensity. The finite-difference time-domain (FDTD) method is used to carry out the simulations and verifies this result.
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9
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Ananthoju B, Biroju RK, Theis W, Dryfe RAW. Controlled Electrodeposition of Gold on Graphene: Maximization of the Defect-Enhanced Raman Scattering Response. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2019; 15:e1901555. [PMID: 31112374 DOI: 10.1002/smll.201901555] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2019] [Revised: 05/03/2019] [Indexed: 06/09/2023]
Abstract
A reliable method to prepare a surface-enhanced Raman scattering (SERS) active substrate is developed herein, by electrodeposition of gold nanoparticles (Au NPs) on defect-engineered, large area chemical vapour deposition graphene (GR). A plasma treatment strategy is used in order to engineer the structural defects on the basal plane of large area single-layer graphene. This defect-engineered Au functionalized GR, offers reproducible SERS signals over the large area GR surface. The Raman data, along with X-ray photoelectron spectroscopy and analysis of the water contact angle are used to rationalize the functionalization of the graphene layer. It is found that Au NPs functionalization of the "defect-engineered" graphene substrates permits detection of concentrations as low as 10-16 m for the probe molecule Rhodamine B, which offers an outstanding molecular sensing ability. Interestingly, a Raman signal enhancement of up to ≈108 is achieved. Moreover, it is observed that GR effectively quenches the fluorescence background from the Au NPs and molecules due to the strong resonance energy transfer between Au NPs and GR. The results presented offer significant direction for the design and fabrication of ultra-sensitive SERS platforms, and also open up possibilities for novel applications of defect engineered graphene in biosensors, catalysis, and optoelectronic devices.
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Affiliation(s)
- Balakrishna Ananthoju
- School of Chemistry and National Graphene Institute, University of Manchester, Oxford Road, Manchester, M13 9PL, UK
| | - Ravi K Biroju
- Nanoscale Physics Research Laboratory, School of Physics and Astronomy, University of Birmingham, Birmingham, B15 2TT, UK
| | - Wolfgang Theis
- Nanoscale Physics Research Laboratory, School of Physics and Astronomy, University of Birmingham, Birmingham, B15 2TT, UK
| | - Robert A W Dryfe
- School of Chemistry and National Graphene Institute, University of Manchester, Oxford Road, Manchester, M13 9PL, UK
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10
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Understanding Electromagnetic Interactions and Electron Transfer in Ga Nanoparticle–Graphene–Metal Substrate Sandwich Systems. APPLIED SCIENCES-BASEL 2019. [DOI: 10.3390/app9194085] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Plasmonic metal nanoparticle (NP)–graphene (G) systems are of great interest due their potential role in applications as surface-enhanced spectroscopies, enhanced photodetection, and photocatalysis. Most of these studies have been performed using noble metal NPs of silver and gold. However, recent studies have demonstrated that the noble metal–graphene interaction leads to strong distortions of the graphene sheet. In order to overcome this issue, we propose the use of Ga NPs that, due to their weak interaction with graphene, do not produce any deformation of the graphene layers. Here, we analyze systems consisting of Ga NP/G/metal sandwich coupling structures, with the metal substrate being, specifically, copper (Cu) and nickel (Ni), i.e., Ga NP/G/Cu and Ga NPs/G/Ni. We experimentally show through real-time plasmonic spectroscopic ellipsometry and Raman spectroscopy measurements of the quenching of the Ga NP localized surface plasmon resonance (LSPR) depending on the wetting of the graphene by the Ga NPs and on the electron transfer through graphene. Theoretical finite-difference time-domain (FDTD) simulations supportively demonstrate that the LSPR in such sandwich structures strongly depends on the contact angle of the NP with graphene. Finally, we also provide evidence of the electron transfer from the Ga NPs into the graphene and into the metal substrate according to the work function alignments. These considerations about the contact angle and, consequently, geometry and wetting of the metal NPs on graphene, are useful to guide the design of those plasmonic systems to maximize electromagnetic enhancement.
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11
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Zavatski S, Redko S, Bandarenka H. Shelf Life Improvement of SERS-Active Substrates Based on Copper and Porous Aluminum Oxide. INTERNATIONAL JOURNAL OF NANOSCIENCE 2019. [DOI: 10.1142/s0219581x1940074x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Copper nanostructures demonstrating an activity in the surface-enhanced Raman scattering (SERS) spectroscopy were formed via electrochemical deposition of copper on porous aluminum oxide (PAO) and protected from oxidation by surface coverage with polyethylene glycol (PEG) and silver. The SERS measurements of 10[Formula: see text]-M 4-mercaptophenylboronic acid (MPBA) molecules adsorbed on fresh Cu-coated samples, Cu–PEG and Cu–PEG–Ag nanocomposites after 5, 10, 15, 60, 180 and 300[Formula: see text]min of storage in air indicated the effectiveness of the proposed approach in protection from oxidation.
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Affiliation(s)
- S. Zavatski
- R&D Laboratory “Applied Plasmonics”, Belarusian State University of Informatics and Radioelectronics, P. Brovki Str. 6, 220013 Minsk, Belarus
| | - S. Redko
- R&D Laboratory “Applied Plasmonics”, Belarusian State University of Informatics and Radioelectronics, P. Brovki Str. 6, 220013 Minsk, Belarus
| | - H. Bandarenka
- R&D Laboratory “Applied Plasmonics”, Belarusian State University of Informatics and Radioelectronics, P. Brovki Str. 6, 220013 Minsk, Belarus
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Arfanis MK, Athanasekou CP, Sakellis E, Boukos N, Ioannidis N, Likodimos V, Sygellou L, Bouroushian M, Kontos AG, Falaras P. Photocatalytic properties of copper—Modified core-shell titania nanocomposites. J Photochem Photobiol A Chem 2019. [DOI: 10.1016/j.jphotochem.2018.10.051] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
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13
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Zhao X, Deng M, Rao G, Yan Y, Wu C, Jiao Y, Deng A, Yan C, Huang J, Wu S, Chen W, Lei T, Xu P, He W, Xiong J. High-Performance SERS Substrate Based on Hierarchical 3D Cu Nanocrystals with Efficient Morphology Control. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2018; 14:e1802477. [PMID: 30146774 DOI: 10.1002/smll.201802477] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2018] [Revised: 08/01/2018] [Indexed: 05/21/2023]
Abstract
Cu nanocrystals of various shapes are synthesized via a universal, eco-friendly, and facile colloidal method on Al substrates using hexadecylamine (HDA) as a capping agent and glucose as a reductant. By tuning the concentration of the capping agent, hierarchical 3D Cu nanocrystals show pronounced surface-enhanced Raman scattering (SERS) through the concentrated hot spots at the sharp tips and gaps due to the unique 3D structure and the resulting plasmonic couplings. Intriguingly, 3D sword-shaped Cu crystals have the highest enhancement factor (EF) because of their relatively uniform size distribution and alignment. This work opens new pathways for efficiently realizing morphology control for Cu nanocrystals as highly efficient SERS platforms.
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Affiliation(s)
- Xiaohui Zhao
- State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu, 610054, P. R. China
| | - Min Deng
- State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu, 610054, P. R. China
| | - Gaofeng Rao
- State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu, 610054, P. R. China
| | - Yichao Yan
- State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu, 610054, P. R. China
| | - Chunyang Wu
- State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu, 610054, P. R. China
| | - Yu Jiao
- School of Applied and Chemical Engineering, Xichang College, Xichang, 615053, P. R. China
| | - Anqing Deng
- Faculty of Science, Zhejiang University, Hangzhou, 310012, P. R. China
| | - Chaoyi Yan
- State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu, 610054, P. R. China
| | - Jianwen Huang
- State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu, 610054, P. R. China
| | - Songhao Wu
- School of Physics, University of Electronic Science and Technology of China, Chengdu, 610054, P. R. China
| | - Wei Chen
- State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu, 610054, P. R. China
| | - Tianyu Lei
- State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu, 610054, P. R. China
| | - Ping Xu
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, 150001, P. R. China
| | - Weidong He
- School of Physics, University of Electronic Science and Technology of China, Chengdu, 610054, P. R. China
| | - Jie Xiong
- State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu, 610054, P. R. China
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14
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Mei C, Zou J, Huang X, Zou B, Zhou P, Gan Z, Hu J, Zhang Q, Wang H. High sensitive position-dependent photodetection observed in Cu-covered Si nanopyramids. NANOTECHNOLOGY 2018; 29:205203. [PMID: 29504516 DOI: 10.1088/1361-6528/aab3f9] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Silicon nanopyramids with the excellent ability of light absorption have been mostly reported in solar cells. Here, we report an obviously enhanced lateral photovoltaic effect (LPE) in copper-nanoparticle-covered random Si nanopyramids (Cu@Si-pyramid). Remarkable photoelectric responses are achieved in broadband from 405 to 780 nm. Furthermore, a prominent LPE is double-enhanced from 74.0 to 157.9 mV mm-1 when the linear region decreases from 3 to 1 mm. Finite-difference time-domain simulation is applied to investigate the origin of the exceptional results. This work declares a position-sensitive property of Si-nanopyramid systems and proposes promising applications to photodetections based on LPE.
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Affiliation(s)
- Chunlian Mei
- State Key Laboratory of Advanced Optical Communication Systems and Networks, School of Physics and Astronomy, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, People's Republic of China. Key Laboratory for Thin Film and Microfabrication of the Ministry of Education, School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, People's Republic of China
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15
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Wu M, Li P, Zhu Q, Wu M, Li H, Lu F. Functional paper-based SERS substrate for rapid and sensitive detection of Sudan dyes in herbal medicine. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2018; 196:110-116. [PMID: 29438940 DOI: 10.1016/j.saa.2018.02.014] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2017] [Revised: 10/30/2017] [Accepted: 02/05/2018] [Indexed: 06/08/2023]
Abstract
There has been an increasing demand for rapid and sensitive techniques for the identification of Sudan compounds that emerged as the most often illegally added fat-soluble dyes in herbal medicine. In this report, we have designed and fabricated a functionalized filter paper consisting of gold nanorods (GNRs) and mono-6-thio-cyclodextrin (HS-β-CD) as a surface-enhanced Raman spectroscopy (SERS) substrate, in which the GNR provides sufficient SERS enhancement, and the HS-β-CD with strong chemical affinity toward GNR provides the inclusion compound to capture hydrophobic molecules. Moreover, the CD-GNR were uniformly assembled on filter paper cellulose through the electrostatic adsorption and hydrogen bond, so that the CD-GNR paper-based SERS substrate (CD-GNR-paper) demonstrated higher sensitivity for the determination of Sudan III (0.1μM) and Sudan IV (0.5μM) than GNRs paper-based SERS substrate (GNR-paper), with high stability after the storage in the open air for 90days. Importantly, CD-GNR-paper can effectively collect the Sudan dyes from illegally adulterated onto samples of Resina Draconis with a simple operation, further open up new exciting opportunity for SERS detection of more compounds illegally added with high sensitivity and fast signal responses.
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Affiliation(s)
- Mianmian Wu
- Department of Pharmaceutical Analysis, School of Pharmacy, Second Military Medical University, Shanghai 200433, China; School of Pharmacy, Fujian University of Traditional Chinese Medicine, Fuzhou 350108, China
| | - Pan Li
- Institute of Intelligent Machines, Chinese Academy of Sciences, Hefei 230031, China
| | - Qingxia Zhu
- Department of Pharmacy, Shanghai 9th People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai 200011, China
| | - Meiran Wu
- Department of Pharmaceutical Analysis, School of Pharmacy, Second Military Medical University, Shanghai 200433, China
| | - Hao Li
- Department of Pharmaceutical Analysis, School of Pharmacy, Second Military Medical University, Shanghai 200433, China
| | - Feng Lu
- Department of Pharmaceutical Analysis, School of Pharmacy, Second Military Medical University, Shanghai 200433, China.
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16
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Li Z, Jiang S, Huo Y, Ning T, Liu A, Zhang C, He Y, Wang M, Li C, Man B. 3D silver nanoparticles with multilayer graphene oxide as a spacer for surface enhanced Raman spectroscopy analysis. NANOSCALE 2018; 10:5897-5905. [PMID: 29546897 DOI: 10.1039/c7nr09276h] [Citation(s) in RCA: 75] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
We report a three-dimensional (3D) SERS substrate with different numbers of silver nanoparticle (Ag NP) layers using multilayer graphene oxide (GO) as a spacer. The SERS performance of the 3D nanostructure was investigated and it was found that the SERS effect increased as the number of Ag NP layers increased, and showed almost no change for more than four layers. We found that the SERS performance of the 3D nanostructures can be mainly attributed to the topmost hot spots which are closely related to the Ag NP layers in the 3D nanostructure. Furthermore, we explored 3D nanostructures with different Ag NP layers using the finite difference time domain method (FDTD). The 3D SERS substrates also exhibit excellent detection capability. The limit of detection (LOD) was calculated down to 10-15 M for R6G and 10-12 M for CV. In addition, the reproducibility of the 3D SERS substrate was attributed obviously to the increasing number of Ag NP layers. Based on these promising results, the highly sensitive detection of molecules such as malachite green was demonstrated for food safety inspection.
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Affiliation(s)
- Zhen Li
- School of Physics and Electronics, Shandong Normal University, Jinan 250014, China.
| | - Shouzhen Jiang
- School of Physics and Electronics, Shandong Normal University, Jinan 250014, China.
| | - Yanyan Huo
- School of Physics and Electronics, Shandong Normal University, Jinan 250014, China.
| | - Tingyin Ning
- School of Physics and Electronics, Shandong Normal University, Jinan 250014, China.
| | - Aihua Liu
- School of Physics and Electronics, Shandong Normal University, Jinan 250014, China.
| | - Chao Zhang
- School of Physics and Electronics, Shandong Normal University, Jinan 250014, China.
| | - Yuan He
- School of Physics and Electronics, Shandong Normal University, Jinan 250014, China.
| | - Minghong Wang
- School of Physics and Electronics, Shandong Normal University, Jinan 250014, China.
| | - Chonghui Li
- School of Physics and Electronics, Shandong Normal University, Jinan 250014, China.
| | - Baoyuan Man
- School of Physics and Electronics, Shandong Normal University, Jinan 250014, China.
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17
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Sodium Chloride Crystal-Induced SERS Platform for Controlled Highly Sensitive Detection of Illicit Drugs. Chemistry 2018; 24:4800-4804. [DOI: 10.1002/chem.201800487] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2018] [Indexed: 01/18/2023]
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18
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Chen K, Zhang X, MacFarlane DR. Ultrasensitive surface-enhanced Raman scattering detection of urea by highly ordered Au/Cu hybrid nanostructure arrays. Chem Commun (Camb) 2018; 53:7949-7952. [PMID: 28660259 DOI: 10.1039/c7cc03523c] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
We report a simple approach to fabricate cost-effective and highly sensitive surface-enhanced Raman scattering substrates based on Au/Cu hybrid nanostructure arrays for the detection of urea, an important molecule in biological and medical fields. By effectively adjusting the gap size between neighbouring nanorods into the sub-10 nm regime, a high density of hot-spots was generated, enabling the substrates to detect urea signals at a concentration as low as 1 mM with great reproducibility.
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Affiliation(s)
- Kun Chen
- School of Chemistry, Monash University, Clayton, VIC 3800, Australia.
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19
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Su X, Ma H, Wang H, Li X, Han XX, Zhao B. Surface-enhanced Raman scattering on organic–inorganic hybrid perovskites. Chem Commun (Camb) 2018; 54:2134-2137. [DOI: 10.1039/c8cc00339d] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
For the first time SERS on organic–inorganic hybrid perovskites is explored. The enhancement mechanism is discussed according to charge transfer.
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Affiliation(s)
- Xiaoyue Su
- State Key Laboratory of Supramolecular Structure and Materials
- Jilin University
- Changchun 130012
- People's Republic of China
| | - Hao Ma
- State Key Laboratory of Supramolecular Structure and Materials
- Jilin University
- Changchun 130012
- People's Republic of China
| | - He Wang
- State Key Laboratory of Supramolecular Structure and Materials
- Jilin University
- Changchun 130012
- People's Republic of China
| | - Xueliang Li
- State Key Laboratory of Supramolecular Structure and Materials
- Jilin University
- Changchun 130012
- People's Republic of China
| | - Xiao Xia Han
- State Key Laboratory of Supramolecular Structure and Materials
- Jilin University
- Changchun 130012
- People's Republic of China
| | - Bing Zhao
- State Key Laboratory of Supramolecular Structure and Materials
- Jilin University
- Changchun 130012
- People's Republic of China
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20
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Lai H, Xu F, Zhang Y, Wang L. Recent progress on graphene-based substrates for surface-enhanced Raman scattering applications. J Mater Chem B 2018; 6:4008-4028. [DOI: 10.1039/c8tb00902c] [Citation(s) in RCA: 73] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Graphene-based SERS substrates are classified and introduced, and their applications in biosensing-related fields are reviewed.
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Affiliation(s)
- Huasheng Lai
- College of Chemistry and Chemical Engineering
- Jiangxi Normal University
- Nanchang 330022
- P. R. China
| | - Fugang Xu
- College of Chemistry and Chemical Engineering
- Jiangxi Normal University
- Nanchang 330022
- P. R. China
| | - Yue Zhang
- School of Chemistry & Chemical Engineering
- Tianjin University of Technology
- Tianjin 300384
- P. R. China
| | - Li Wang
- College of Chemistry and Chemical Engineering
- Jiangxi Normal University
- Nanchang 330022
- P. R. China
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21
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Ag-protein plasmonic architectures for surface plasmon-coupled emission enhancements and Fabry-Perot mode-coupled directional fluorescence emission. Chem Phys Lett 2017. [DOI: 10.1016/j.cplett.2017.07.056] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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22
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Li C, Liu A, Zhang C, Wang M, Li Z, Xu S, Jiang S, Yu J, Yang C, Man B. Ag gyrus-nanostructure supported on graphene/Au film with nanometer gap for ideal surface enhanced Raman scattering. OPTICS EXPRESS 2017; 25:20631-20641. [PMID: 29041742 DOI: 10.1364/oe.25.020631] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/01/2017] [Accepted: 07/17/2017] [Indexed: 05/23/2023]
Abstract
The physical phenomenon, surface-enhanced Raman scattering (SERS), is mainly based on the local electromagnetic fields enhancement located at the nano-gaps between metal nanostructures attributed to localized surface plasmon resonance. Therefore, nano-gaps are very important for obtaining high-density hot spots and optimal and uniform SERS signals. However, it remains a challenge to form the three-dimensional ultra-narrow nano-gaps. Here, a gyrus-inspired Gyrus-SERS substrate was fabricated with the nanostructure of Ag gyrus/graphene/Au film using an extremely simple method. The lateral and vertical hot spots respectively were obtained from the dense nano-gaps (~3 nm) between gyrus and the coupling of Ag gyrus and Au film in bilayer graphene nano-gaps (0.68 nm), which were demonstrated in experiment and theory. The proposed Gyrus-SERS platform performs an excellent SERS activity (EF~5 × 109), high sensitivity (the minimum detected concentration of R6G and CV respectively is 10-13 and 10-12 M), and outstanding reproducibility (RSD~7.11%). For practical application, the in situ detection of Malachite green (MG) residue on prawn skin was executed using the prepared flexible Gyrus-SERS substrate, which shows the wide potential in food safety field.
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23
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Yu X, Zhang W, Zhang P, Su Z. Fabrication technologies and sensing applications of graphene-based composite films: Advances and challenges. Biosens Bioelectron 2017; 89:72-84. [DOI: 10.1016/j.bios.2016.01.081] [Citation(s) in RCA: 173] [Impact Index Per Article: 24.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2015] [Revised: 01/01/2016] [Accepted: 01/28/2016] [Indexed: 01/25/2023]
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24
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Zhu H, Liu A, Li D, Zhang Y, Wang X, Yang W, Gooding JJ, Liu J. Wafer-scale fabrication of a Cu/graphene double-nanocap array for surface-enhanced Raman scattering substrates. Chem Commun (Camb) 2017; 53:3273-3276. [DOI: 10.1039/c6cc09642e] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel Cu/graphene double-nanocap array is developed via low-temperature CVD to serve as a highly sensitive, reproducible and stable SERS platform.
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Affiliation(s)
- Huihui Zhu
- College of Materials Science and Engineering
- Linyi University
- Linyi 276005
- China
- Shandong Provincial Key Laboratory of Detection Technology for Tumor Markers
| | - Ao Liu
- College of Physics and Lab of New Fiber Materials and Modern Textile
- Growing Base for State Key Laboratory
- Qingdao University
- Qingdao 266071
- China
| | - Da Li
- College of Materials Science and Engineering
- Qingdao University
- Qingdao 266071
- China
| | - Yongcheng Zhang
- College of Physics and Lab of New Fiber Materials and Modern Textile
- Growing Base for State Key Laboratory
- Qingdao University
- Qingdao 266071
- China
| | - Xiaoxia Wang
- College of Materials Science and Engineering
- Qingdao University
- Qingdao 266071
- China
| | - Wenrong Yang
- Shandong Provincial Key Laboratory of Detection Technology for Tumor Markers
- College of Chemistry and Chemical Engineering
- Linyi University
- Linyi 276005
- China
| | - J. Justin Gooding
- School of Chemistry
- Australian Centre for NanoMedicine and ARC Centre of Excellence in Convergent Bio-Nano Science and Technology
- The University of New South Wales
- Sydney
- Australia
| | - Jingquan Liu
- College of Materials Science and Engineering
- Linyi University
- Linyi 276005
- China
- Shandong Provincial Key Laboratory of Detection Technology for Tumor Markers
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25
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Guo S, Li X, Zhu J, Tong T, Wei B. Au NPs@MoS 2 Sub-Micrometer Sphere-ZnO Nanorod Hybrid Structures for Efficient Photocatalytic Hydrogen Evolution with Excellent Stability. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2016; 12:5692-5701. [PMID: 27594534 DOI: 10.1002/smll.201602122] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2016] [Revised: 07/27/2016] [Indexed: 05/10/2023]
Abstract
MoS2 shows promising applications in photocatalytic water splitting, owing to its uniquely optical and electric properties. However, the insufficient light absorption and lack of performance stability are two crucial issues for efficient application of MoS2 nanomaterials. Here, Au nanoparticles (NPs)@MoS2 sub-micrometer sphere-ZnO nanorod (Au NPs@MoS2 -ZnO) hybrid photocatalysts have been successfully synthesized by a facile process combining the hydrothermal method and seed-growth method. Such photocatalysts exhibit high efficiency and excellent stability for hydrogen production via multiple optical-electrical effects. The introduction of Au NPs to MoS2 sub-micrometer spheres forming a core-shell structure demonstrates strong plasmonic absorption enhancement and facilitates exciton separation. The incorporation of ZnO nanorods to the Au NPs@MoS2 hybrids further extends the light absorption to a broader wavelength region and enhances the exciton dissociation. In addition, mutual contacts between Au NPs (or ZnO nanorods) and the MoS2 spheres effectively protect the MoS2 nanosheets from peeling off from the spheres. More importantly, efficiently multiple exciton separations help to restrain the MoS2 nanomaterials from photocorrosion. As a result, the Au@MoS2 -ZnO hybrid structures exhibit an excellent hydrogen gas evolution (3737.4 μmol g-1 ) with improved stability (91.9% of activity remaining) after a long-time test (32 h), which is one of the highest photocatalytic activities to date among the MoS2 based photocatalysts.
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Affiliation(s)
- Shaohui Guo
- State Key Laboratory of Solidification Processing, Center for Nano Energy Materials, School of Materials Science and Engineering, Northwestern Polytechnical University and Shaanxi Joint Lab of Graphene (NPU), Xi'an, 710072, China
| | - Xuanhua Li
- State Key Laboratory of Solidification Processing, Center for Nano Energy Materials, School of Materials Science and Engineering, Northwestern Polytechnical University and Shaanxi Joint Lab of Graphene (NPU), Xi'an, 710072, China.
| | - Jinmeng Zhu
- State Key Laboratory of Solidification Processing, Center for Nano Energy Materials, School of Materials Science and Engineering, Northwestern Polytechnical University and Shaanxi Joint Lab of Graphene (NPU), Xi'an, 710072, China
| | - Tengteng Tong
- State Key Laboratory of Solidification Processing, Center for Nano Energy Materials, School of Materials Science and Engineering, Northwestern Polytechnical University and Shaanxi Joint Lab of Graphene (NPU), Xi'an, 710072, China
| | - Bingqing Wei
- State Key Laboratory of Solidification Processing, Center for Nano Energy Materials, School of Materials Science and Engineering, Northwestern Polytechnical University and Shaanxi Joint Lab of Graphene (NPU), Xi'an, 710072, China.
- Department of Mechanical Engineering, University of Delaware, Newark, DE 19716, USA.
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26
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Li R, Yang G, Yang J, Han J, Liu J, Huang M. Determination of melamine in milk using surface plasma effect of aggregated Au@SiO2 nanoparticles by SERS technique. Food Control 2016. [DOI: 10.1016/j.foodcont.2016.03.009] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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27
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Huang Y, Ma L, Hou M, Li J, Xie Z, Zhang Z. Hybridized plasmon modes and near-field enhancement of metallic nanoparticle-dimer on a mirror. Sci Rep 2016; 6:30011. [PMID: 27418039 PMCID: PMC4945943 DOI: 10.1038/srep30011] [Citation(s) in RCA: 72] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2016] [Accepted: 06/29/2016] [Indexed: 02/03/2023] Open
Abstract
For the attractive plasmonic structure consisting of metal nanoparticles (NPs) on a mirror, the coexistence of near-field NP-NP and NP-mirror couplings is numerically studied at normal incidence. By mapping their 3D surface charge distributions directly, we have demonstrated two different kinds of mirror-induced bonding dipole plasmon modes and confirmed the bonding hybridizations of the mirror and the NP-dimer which may offer a much stronger near-field enhancement than that of the isolated NP dimers over a broad wavelength range. Further, it is revealed that the huge near-field enhancement of these two modes exhibit different dependence on the NP-NP and NP-mirror hot spots, while both of their near-field resonance wavelengths can be tuned to the blue exponentially by increasing the NP-NP gaps or the NP-mirror separation. Our results here benifit significantly the fundamental understanding and practical applications of metallic NPs on a mirror in plasmonics.
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Affiliation(s)
- Yu Huang
- State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, P. R. China
| | - Lingwei Ma
- State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, P. R. China
| | - Mengjing Hou
- State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, P. R. China
| | - Jianghao Li
- State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, P. R. China
| | - Zheng Xie
- High-Tech Institute of Xi'an, Shaanxi 710025, P. R. China
| | - Zhengjun Zhang
- Key Laboratory of Advanced Materials (MOE), School of Materials Science and Engineering, Tsinghua University, Beijing 100084, P. R. China
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28
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He L, Liu C, Hu J, Gu W, Zhang Y, Dong L, Fu X, Tang J. Hydrophobic ligand-mediated hierarchical Cu nanoparticles on reduced graphene oxides for SERS platform. CrystEngComm 2016. [DOI: 10.1039/c6ce01728b] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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29
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van den Beld WTE, van den Berg A, Eijkel JCT. Spatial control of direct chemical vapor deposition of graphene on silicon dioxide by directional copper dewetting. RSC Adv 2016. [DOI: 10.1039/c6ra16935j] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A non-manual, controllable and wafer-scale method for the spatial control of direct graphene synthesis onto silicon dioxide by controlled dewetting and evaporation of copper.
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Affiliation(s)
- Wesley T. E. van den Beld
- BIOS – Lab on a Chip Group
- MESA+ Institute for Nanotechnology
- MIRA Institute for Biomedical Engineering and Technical Medicine
- University of Twente
- The Netherlands
| | - Albert van den Berg
- BIOS – Lab on a Chip Group
- MESA+ Institute for Nanotechnology
- MIRA Institute for Biomedical Engineering and Technical Medicine
- University of Twente
- The Netherlands
| | - Jan C. T. Eijkel
- BIOS – Lab on a Chip Group
- MESA+ Institute for Nanotechnology
- MIRA Institute for Biomedical Engineering and Technical Medicine
- University of Twente
- The Netherlands
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30
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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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