1
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Cai YY, Choi YC, Kagan CR. Chemical and Physical Properties of Photonic Noble-Metal Nanomaterials. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2108104. [PMID: 34897837 DOI: 10.1002/adma.202108104] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2021] [Revised: 11/15/2021] [Indexed: 06/14/2023]
Abstract
Colloidal noble metal nanoparticles (NPs) are composed of metal cores and organic or inorganic ligand shells. These NPs support size- and shape-dependent plasmonic resonances. They can be assembled from dispersions into artificial metamolecules which have collective plasmonic resonances originating from coupled bright and dark optical electric and magnetic modes that form depending on the size and shape of the constituent NPs and their number, arrangement, and interparticle distance. NPs can also be assembled into extended 2D and 3D metamaterials that are glassy thin films or ordered thin films or crystals, also known as superlattices and supercrystals. The metamaterials have tunable optical properties that depend on the size, shape, and composition of the NPs, and on the number of NP layers and their interparticle distance. Interestingly, strong light-matter interactions in superlattices form plasmon polaritons. Tunable interparticle distances allow designer materials with dielectric functions tailorable from that characteristic of an insulator to that of a metal, and serve as strong optical absorbers or scatterers, respectively. In combination with lithography techniques, these extended assemblies can be patterned to create subwavelength NP superstructures and form large-area 2D and 3D metamaterials that manipulate the amplitude, phase, and polarization of transmitted or reflected light.
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Affiliation(s)
- Yi-Yu Cai
- Department of Electrical and Systems Engineering, University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Yun Chang Choi
- Department of Chemistry, University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Cherie R Kagan
- Department of Electrical and Systems Engineering, University of Pennsylvania, Philadelphia, PA, 19104, USA
- Department of Chemistry, University of Pennsylvania, Philadelphia, PA, 19104, USA
- Department of Materials Science and Engineering, University of Pennsylvania, Philadelphia, PA, 19104, USA
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2
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Ning J, Zou J, Long Y, Ren X, Cao Y, Li T, Dong A. Monolayer supertubes of Carbon-Armored platinum nanocrystals enabling robust oxygen reduction electrocatalysis. J Colloid Interface Sci 2023; 648:719-726. [PMID: 37321091 DOI: 10.1016/j.jcis.2023.06.036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Revised: 06/03/2023] [Accepted: 06/06/2023] [Indexed: 06/17/2023]
Abstract
Self-assembled superstructures composed of nanocrystals (NCs) have shown immense potential for enhancing the performance in electrocatalytic applications. However, there has been limited research on the self-assembly of platinum (Pt) into low-dimensional superstructures as efficient electrocatalysts for oxygen reduction reaction (ORR). In this study, we designed a unique tubular superstructure composed of monolayer or sub-monolayer carbon-armored platinum nanocrystals (Pt NCs) using a template-assisted epitaxial assembly approach. The organic ligands on the surface of Pt NCs were in situ carbonized, resulting in few-layer graphitic carbon shells that encapsulate Pt NCs. Due to their monolayer assembly and tubular geometry, the Pt utilization of the supertubes was 1.5 times higher than that of conventional carbon-supported Pt NCs. As a result, such Pt supertubes exhibit remarkable electrocatalytic performance for the ORR in acidic media, with a high half-wave potential of 0.918 V and a high mass activity of 181 A g-1Pt at 0.9 V, which are comparable to commercial carbon-supported Pt (Pt/C) catalysts. Furthermore, the Pt supertubes demonstrate robust catalytic stability, as confirmed by long-term accelerated durability tests and identical-location transmission electron microscopy. This study presents a new approach to designing Pt superstructures for highly efficient and stable electrocatalysis.
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Affiliation(s)
- Jing Ning
- Collaborative Innovation Center of Chemistry for Energy Materials, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Department of Chemistry, Fudan University, Shanghai 200438, China
| | - Jinxiang Zou
- Collaborative Innovation Center of Chemistry for Energy Materials, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Department of Chemistry, Fudan University, Shanghai 200438, China
| | - Ying Long
- Collaborative Innovation Center of Chemistry for Energy Materials, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Department of Chemistry, Fudan University, Shanghai 200438, China
| | - Xiaomeng Ren
- PLA Naval Medical Center, 5 Panshan Rd, Shanghai 200052, China
| | - Yangfei Cao
- Collaborative Innovation Center of Chemistry for Energy Materials, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Department of Chemistry, Fudan University, Shanghai 200438, China.
| | - Tongtao Li
- Collaborative Innovation Center of Chemistry for Energy Materials, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Department of Chemistry, Fudan University, Shanghai 200438, China.
| | - Angang Dong
- Collaborative Innovation Center of Chemistry for Energy Materials, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Department of Chemistry, Fudan University, Shanghai 200438, China.
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3
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Jansen M, Tisdale WA, Wood V. Nanocrystal phononics. NATURE MATERIALS 2023; 22:161-169. [PMID: 36702886 DOI: 10.1038/s41563-022-01438-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Accepted: 11/14/2022] [Indexed: 06/18/2023]
Abstract
Colloidal nanocrystals are successfully used as nanoscale building blocks for creating hierarchical solids with structures that range from amorphous networks to sophisticated periodic superlattices. Recently, it has been observed that these superlattices exhibit collective vibrations, which stem from the correlated motion of the nanocrystals, with their surface-bound ligands acting as molecular linkers. In this Perspective, we describe the work so far on collective vibrations in nanocrystal solids and their as-of-yet untapped potential for phononic applications. With the ability to engineer vibrations in the hypersonic regime through the choice of nanocrystal and linker composition, as well as by controlling their size, shape and chemical interactions, such superstructures offer new opportunities for phononic crystals, acoustic metamaterials and optomechanical systems.
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Affiliation(s)
- Maximilian Jansen
- Department of Information Technology and Electrical Engineering, ETH Zurich, Zurich, Switzerland
| | - William A Tisdale
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Vanessa Wood
- Department of Information Technology and Electrical Engineering, ETH Zurich, Zurich, Switzerland.
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4
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Conductive Textiles for Signal Sensing and Technical Applications. SIGNALS 2022. [DOI: 10.3390/signals4010001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
Conductive textiles have found notable applications as electrodes and sensors capable of detecting biosignals like the electrocardiogram (ECG), electrogastrogram (EGG), electroencephalogram (EEG), and electromyogram (EMG), etc; other applications include electromagnetic shielding, supercapacitors, and soft robotics. There are several classes of materials that impart conductivity, including polymers, metals, and non-metals. The most significant materials are Polypyrrole (PPy), Polyaniline (PANI), Poly(3,4-ethylenedioxythiophene) (PEDOT), carbon, and metallic nanoparticles. The processes of making conductive textiles include various deposition methods, polymerization, coating, and printing. The parameters, such as conductivity and electromagnetic shielding, are prerequisites that set the benchmark for the performance of conductive textile materials. This review paper focuses on the raw materials that are used for conductive textiles, various approaches that impart conductivity, the fabrication of conductive materials, testing methods of electrical parameters, and key technical applications, challenges, and future potential.
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5
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Xi X, Wan S, Deng Y, Xia Y, Xiao J, Cao Y, Huang X, Li Z, Yang D, Dong A, Li T. Amphiphilic Self-Assembly of Nanocrystals at Emulsion Interface Renders Fast and Scalable Quasi-Nanosheet Formation. ACS APPLIED MATERIALS & INTERFACES 2022; 14:50354-50362. [PMID: 36315871 DOI: 10.1021/acsami.2c14274] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Scalable assembly of nanocrystals (NCs) into two-dimensional (2D) nanosheets has aroused great interest, yet it remains under-explored. This is because current 2D assembly methods rely mainly on the use of solid- or liquid-air interfaces, which are inherently difficult for upscaling and thus lack practicability. Here, with a microemulsion-based amphiphilic assembly technique, we achieve a fast and scalable preparation of free-standing nanosheets comprising few-layer, tightly packed NCs, namely, quasi-nanosheets (quasi-NSs). Acetic acid, acting as both solvent and surface-treatment agent, is used to render the initially hydrophobic NCs amphiphilic, while simultaneously inducing the interfacial instability right after the assembly of NCs at the emulsion interface to afford quasi-NSs. This amphiphilic assembly method is applicable to a variety of NCs, and multicomponent quasi-NSs are also attainable upon coassembly of different types of NCs. In addition, the structural advantages of quasi-NSs in catalysis are showcased by using NiFe2O4 quasi-NSs as electrocatalysts for the oxygen evolution reaction. This work opens a new route for the scalable construction of 2D NC sheets with designated components and functions.
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Affiliation(s)
- Xiangyun Xi
- State Key Laboratory of Molecule Engineering of Polymers and Department of Macromolecular science, iCHEM, Fudan University, Shanghai 200433, China
| | - Siyu Wan
- Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, iCHEM, Fudan University, Shanghai 200433, China
| | - Yuwei Deng
- Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, iCHEM, Fudan University, Shanghai 200433, China
| | - Yan Xia
- State Key Laboratory of Molecule Engineering of Polymers and Department of Macromolecular science, iCHEM, Fudan University, Shanghai 200433, China
| | - Jingyu Xiao
- State Key Laboratory of Molecule Engineering of Polymers and Department of Macromolecular science, iCHEM, Fudan University, Shanghai 200433, China
| | - Yangfei Cao
- Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, iCHEM, Fudan University, Shanghai 200433, China
| | - Xianwu Huang
- State Key Laboratory of Molecule Engineering of Polymers and Department of Macromolecular science, iCHEM, Fudan University, Shanghai 200433, China
| | - Zhicheng Li
- State Key Laboratory of Molecule Engineering of Polymers and Department of Macromolecular science, iCHEM, Fudan University, Shanghai 200433, China
| | - Dong Yang
- State Key Laboratory of Molecule Engineering of Polymers and Department of Macromolecular science, iCHEM, Fudan University, Shanghai 200433, China
| | - Angang Dong
- Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, iCHEM, Fudan University, Shanghai 200433, China
| | - Tongtao Li
- Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, iCHEM, Fudan University, Shanghai 200433, China
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6
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Polymer-grafted nanoparticle superlattice monolayers over 100 cm2 through a modified Langmuir-Blodgett method. POLYMER 2022. [DOI: 10.1016/j.polymer.2022.125308] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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7
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Quantitative 3D real-space analysis of Laves phase supraparticles. Nat Commun 2021; 12:3980. [PMID: 34172743 PMCID: PMC8233429 DOI: 10.1038/s41467-021-24227-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2020] [Accepted: 06/03/2021] [Indexed: 12/03/2022] Open
Abstract
Assembling binary mixtures of nanoparticles into crystals, gives rise to collective properties depending on the crystal structure and the individual properties of both species. However, quantitative 3D real-space analysis of binary colloidal crystals with a thickness of more than 10 layers of particles has rarely been performed. Here we demonstrate that an excess of one species in the binary nanoparticle mixture suppresses the formation of icosahedral order in the self-assembly in droplets, allowing the study of bulk-like binary crystal structures with a spherical morphology also called supraparticles. As example of the approach, we show single-particle level analysis of over 50 layers of Laves phase binary crystals of hard-sphere-like nanoparticles using electron tomography. We observe a crystalline lattice composed of a random mixture of the Laves phases. The number ratio of the binary species in the crystal lattice matches that of a perfect Laves crystal. Our methodology can be applied to study the structure of a broad range of binary crystals, giving insights into the structure formation mechanisms and structure-property relations of nanomaterials. 3D real-space analysis of thick nanoparticle crystals is non-trivial. Here, the authors demonstrate the structural analysis of a bulk-like Laves phase by imaging an off-stoichiometric binary mixture of hard-sphere-like nanoparticles in spherical confinement by electron tomography, enabling defect analysis on the single-particle level.
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8
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Xia P, Davies DW, Patel BB, Qin M, Liang Z, Graham KR, Diao Y, Tang ML. Spin-coated fluorinated PbS QD superlattice thin film with high hole mobility. NANOSCALE 2020; 12:11174-11181. [PMID: 32406467 DOI: 10.1039/d0nr02299c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Motivated by the oleophobic and electron-withdrawing nature of perfluorocarbons, we explore the effect of a trifluoromethyl coating on lead sulfide quantum dots (PbS QDs) in thin film transistor (TFT) geometry. The low surface energy conferred by the oleophobic perfluorocarbons creates QDs packed in a primitive cubic lattice with long range order, as confirmed by grazing incidence small angle X-ray scattering (GISAXS) and transmission electron microscopy (TEM). Hole mobilities as high as 0.085 cm2 V-1 s-1 were measured in the TFTs. No electron transport was observed. This suggests that the electron-withdrawing nature of the trifluoromethyl ligand is eclipsed by the excess holes present in the PbS QDs that likely stem from cation vacancies induced by the thiol group.
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Affiliation(s)
- Pan Xia
- Department of Chemistry & Materials Science and Engineering Program, University of California, Riverside, 900 University Avenue, Riverside, California 92521, USA.
| | - Daniel W Davies
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana-Champaign, 600 South Mathews Avenue, Urbana, Illinois 61801, USA
| | - Bijal B Patel
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana-Champaign, 600 South Mathews Avenue, Urbana, Illinois 61801, USA
| | - Maotong Qin
- Department of Materials Chemistry, School of Chemistry and Materials Science, University of Science and Technology of China, NO. 96 Jinzhai Road, Hefei, Anhui, 230026 P. R. China
| | - Zhiming Liang
- Department of Chemistry, University of Kentucky, Lexington, Kentucky 40506, USA
| | - Kenneth R Graham
- Department of Chemistry, University of Kentucky, Lexington, Kentucky 40506, USA
| | - Ying Diao
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana-Champaign, 600 South Mathews Avenue, Urbana, Illinois 61801, USA
| | - Ming Lee Tang
- Department of Chemistry & Materials Science and Engineering Program, University of California, Riverside, 900 University Avenue, Riverside, California 92521, USA.
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9
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Brittman S, Mahadik NA, Qadri SB, Yee PY, Tischler JG, Boercker JE. Binary Superlattices of Infrared Plasmonic and Excitonic Nanocrystals. ACS APPLIED MATERIALS & INTERFACES 2020; 12:24271-24280. [PMID: 32395979 DOI: 10.1021/acsami.0c03805] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Self-assembled superlattices of nanocrystals offer exceptional control over the coupling between nanocrystals, similar to how solid-state crystals tailor the bonding between atoms. By assembling nanocrystals of different properties (e.g., plasmonic, excitonic, dielectric, or magnetic), we can form a wealth of binary superlattice metamaterials with new functionalities. Here, we introduce infrared plasmonic Cu2-xS nanocrystals to the limited library of materials that have been successfully incorporated into binary superlattices. We are the first to create a variety of binary superlattices with large excitonic (PbS) nanocrystals and small plasmonic (Cu2-xS) nanocrystals, both resonant in the infrared. Then, by controlling the surface chemistry of large Cu2-xS nanocrystals, we produced structurally analogous superlattices of large Cu2-xS and small PbS nanocrystals. Transmission electron microscopy (TEM) and grazing-incidence small-angle X-ray scattering (GISAXS) were used to characterize both types of superlattices. Furthermore, our unique surface modification of the large Cu2-xS nanocrystals also prevented them from chemically quenching the photoluminescence of the PbS nanocrystals, which occurred when the PbS nanocrystals were mixed with unmodified Cu2-xS nanocrystals. These synthetic achievements create a set of binary superlattices that can be used to understand how infrared plasmonic and excitonic nanocrystals couple in a variety of symmetries and stoichiometries.
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Affiliation(s)
- Sarah Brittman
- U.S. Naval Research Laboratory, 4555 Overlook Avenue SW, Washington, D.C. 20375, United States
| | - Nadeemullah A Mahadik
- U.S. Naval Research Laboratory, 4555 Overlook Avenue SW, Washington, D.C. 20375, United States
| | - Syed B Qadri
- U.S. Naval Research Laboratory, 4555 Overlook Avenue SW, Washington, D.C. 20375, United States
| | - Patrick Y Yee
- U.S. Naval Research Laboratory, 4555 Overlook Avenue SW, Washington, D.C. 20375, United States
| | - Joseph G Tischler
- U.S. Naval Research Laboratory, 4555 Overlook Avenue SW, Washington, D.C. 20375, United States
| | - Janice E Boercker
- U.S. Naval Research Laboratory, 4555 Overlook Avenue SW, Washington, D.C. 20375, United States
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10
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Lee YS, Ito T, Shimura K, Watanabe T, Bu HB, Hyeon-Deuk K, Kim D. Coupled electronic states in CdTe quantum dot assemblies fabricated by utilizing chemical bonding between ligands. NANOSCALE 2020; 12:7124-7133. [PMID: 32191241 DOI: 10.1039/d0nr00194e] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Semiconductor quantum dot superlattices (QDSLs) have attracted much attention as key materials for realizing new optoelectronic devices such as solar cells with high conversion efficiency and thermoelectric elements with high electrical conductivity. To improve the charge transport properties of QDSL-based optoelectronic devices, it is important that the QD structures form minibands, which are the coupled electronic states between QDs. A shorter inter-QD distance and a periodic arrangement of QDs are the essential conditions for the formation of minibands. In this study, we use CdTe QDs capped with short ligands of N-acetyl-l cysteine (NAC) to fabricate three-dimensional QD assemblies by utilizing chemical bonding between NACs. Absorption spectra clearly display the quantum resonance phenomenon originating from the coupling of the wave functions between the adjacent QDs in CdTe QD assemblies. Furthermore, we demonstrate the formation of minibands in CdTe QD assemblies by examining both, the excitation energy dependence of photoluminescence (PL) spectra and the detection energy dependence of PL excitation spectra. The fabrication method of QD assemblies utilizing chemical bonding between NACs can be applied to all QDs capped with NAC as a ligand.
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Affiliation(s)
- Yong-Shin Lee
- Department of Applied Physics, Osaka City University, Osaka 558-8585, Japan.
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11
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Shi Y, Liu K, Zhang Z, Tao X, Chen HY, Kingshott P, Wang PY. Decoration of Material Surfaces with Complex Physicochemical Signals for Biointerface Applications. ACS Biomater Sci Eng 2020; 6:1836-1851. [DOI: 10.1021/acsbiomaterials.9b01806] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Yue Shi
- Centre for Human Tissue & Organ Degeneration, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, Guangzhou 518055, China
| | - Kun Liu
- Centre for Human Tissue & Organ Degeneration, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, Guangzhou 518055, China
| | - Zhen Zhang
- Centre for Human Tissue & Organ Degeneration, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, Guangzhou 518055, China
| | - Xuelian Tao
- Centre for Human Tissue & Organ Degeneration, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, Guangzhou 518055, China
| | - Hsien-Yeh Chen
- Department of Chemical Engineering, National Taiwan University, Taipei 10617, Taiwan
- Advanced Research Center for Green Materials Science and Technology, National Taiwan University, Taipei 10617, Taiwan
| | - Peter Kingshott
- Department of Chemistry and Biotechnology, School of Science, Swinburne University of Technology, Hawthorn, Victoria 3122, Australia
- ARC Training Centre Training Centre in Surface Engineering for Advanced Materials (SEAM), School of Engineering, Swinburne University of Technology, Hawthorn, Victoria 3122, Australia
| | - Peng-Yuan Wang
- Centre for Human Tissue & Organ Degeneration, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, Guangzhou 518055, China
- Department of Chemistry and Biotechnology, School of Science, Swinburne University of Technology, Hawthorn, Victoria 3122, Australia
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12
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Song G, Ranjbar M, Daughton DR, Kiehl RA. Nanoparticle-Induced Anomalous Hall Effect in Graphene. NANO LETTERS 2019; 19:7112-7118. [PMID: 31513412 DOI: 10.1021/acs.nanolett.9b02643] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Schemes for introducing magnetic properties into graphene are of fundamental interest and could enable the development of electrically controlled magnetic devices, thereby extending graphene's applications from conventional electronics to spintronics. Proximity-induced ferromagnetism (PIFM) has been reported for graphene coupled to adjacent ferromagnetic insulators (FMIs). PIFM from an FMI preserves graphene's high carrier mobility and does not introduce a parallel current path. However, few FMIs other than yttrium-iron-garnet are suitable for practical applications due to difficulties in their growth and deposition and to their typically low Curie temperatures. Furthermore, it is difficult to obtain a high-quality FMI/graphene interface by graphene transfer methods, which are essential for obtaining the required interfacial exchange coupling. Here, we report the observation of the anomalous Hall effect (AHE) in graphene proximity coupled to an array of magnetic nanoparticles. This observation of AHE in graphene in proximity to a discontinuous magnetic structure opens the door to realizing magnetic properties in graphene from a greatly expanded range of materials and offers new possibilities for realizing patterned spintronic devices and circuitry.
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Affiliation(s)
- Guibin Song
- School of Electrical, Computer and Energy Engineering , Arizona State University , Tempe , Arizona 85287 , United States
| | - Mojtaba Ranjbar
- School of Electrical, Computer and Energy Engineering , Arizona State University , Tempe , Arizona 85287 , United States
| | - David R Daughton
- Lake Shore Cryotronics , Westerville , Ohio 43082 , United States
| | - Richard A Kiehl
- School of Electrical, Computer and Energy Engineering , Arizona State University , Tempe , Arizona 85287 , United States
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13
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Yun H, Paik T. Colloidal Self-Assembly of Inorganic Nanocrystals into Superlattice Thin-Films and Multiscale Nanostructures. NANOMATERIALS 2019; 9:nano9091243. [PMID: 31480547 PMCID: PMC6780213 DOI: 10.3390/nano9091243] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Revised: 08/19/2019] [Accepted: 08/26/2019] [Indexed: 11/16/2022]
Abstract
The self-assembly of colloidal inorganic nanocrystals (NCs) offers tremendous potential for the design of solution-processed multi-functional inorganic thin-films or nanostructures. To date, the self-assembly of various inorganic NCs, such as plasmonic metal, metal oxide, quantum dots, magnetics, and dielectrics, are reported to form single, binary, and even ternary superlattices with long-range orientational and positional order over a large area. In addition, the controlled coupling between NC building blocks in the highly ordered superlattices gives rise to novel collective properties, providing unique optical, magnetic, electronic, and catalytic properties. In this review, we introduce the self-assembly of inorganic NCs and the experimental process to form single and multicomponent superlattices, and we also describe the fabrication of multiscale NC superlattices with anisotropic NC building blocks, thin-film patterning, and the supracrystal formation of superlattice structures.
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Affiliation(s)
- Hongseok Yun
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Korea.
| | - Taejong Paik
- Department of Integrative Engineering, Chung-Ang University, Seoul 06973, Korea.
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14
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Lee WS, Jeon S, Oh SJ. Wearable sensors based on colloidal nanocrystals. NANO CONVERGENCE 2019; 6:10. [PMID: 30937630 PMCID: PMC6443739 DOI: 10.1186/s40580-019-0180-7] [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: 01/08/2019] [Accepted: 03/12/2019] [Indexed: 05/04/2023]
Abstract
In recent times, wearable sensors have attracted significant attention in various research fields and industries. The rapid growth of the wearable sensor related research and industry has led to the development of new devices and advanced applications such as bio-integrated devices, wearable health care systems, soft robotics, and electronic skins, among others. Nanocrystals (NCs) are promising building blocks for the design of novel wearable sensors, due to their solution processability and tunable properties. In this paper, an overview of NC synthesis, NC thin film fabrication, and the functionalization of NCs for wearable applications (strain sensors, pressure sensors, and temperature sensors) are provided. The recent development of NC-based strain, pressure, and temperature sensors is reviewed, and a discussion on their strategies and operating principles is presented. Finally, the current limitations of NC-based wearable sensors are discussed, in addition to methods to overcome these limitations.
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Affiliation(s)
- Woo Seok Lee
- Department of Materials Science and Engineering, Korea University, Seoul, 02841 Republic of Korea
| | - Sanghyun Jeon
- Department of Materials Science and Engineering, Korea University, Seoul, 02841 Republic of Korea
| | - Soong Ju Oh
- Department of Materials Science and Engineering, Korea University, Seoul, 02841 Republic of Korea
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15
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Yu C, Guo X, Muzzio M, Seto CT, Sun S. Self‐Assembly of Nanoparticles into Two‐Dimensional Arrays for Catalytic Applications. Chemphyschem 2018; 20:23-30. [DOI: 10.1002/cphc.201800870] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2018] [Revised: 11/14/2018] [Indexed: 02/02/2023]
Affiliation(s)
- Chao Yu
- Department of Chemistry Brown University Providence, RI 02912 United States
| | - Xuefeng Guo
- Department of Chemistry Brown University Providence, RI 02912 United States
| | - Michelle Muzzio
- Department of Chemistry Brown University Providence, RI 02912 United States
| | | | - Shouheng Sun
- Department of Chemistry Brown University Providence, RI 02912 United States
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16
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Maximizing the Catalytic Activity of Nanoparticles through Monolayer Assembly on Nitrogen‐Doped Graphene. Angew Chem Int Ed Engl 2017; 57:451-455. [DOI: 10.1002/anie.201709815] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2017] [Indexed: 01/09/2023]
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17
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Yu C, Guo X, Shen M, Shen B, Muzzio M, Yin Z, Li Q, Xi Z, Li J, Seto CT, Sun S. Maximizing the Catalytic Activity of Nanoparticles through Monolayer Assembly on Nitrogen‐Doped Graphene. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201709815] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Chao Yu
- Department of Chemistry Brown University Providence RI 02912 USA
| | - Xuefeng Guo
- Department of Chemistry Brown University Providence RI 02912 USA
| | - Mengqi Shen
- Department of Chemistry Brown University Providence RI 02912 USA
| | - Bo Shen
- Department of Chemistry Brown University Providence RI 02912 USA
| | - Michelle Muzzio
- Department of Chemistry Brown University Providence RI 02912 USA
| | - Zhouyang Yin
- Department of Chemistry Brown University Providence RI 02912 USA
| | - Qing Li
- School of Materials Science and Engineering Huazhong University of Science and Technology Wuhan Hubei 430074 China
| | - Zheng Xi
- Department of Chemistry Brown University Providence RI 02912 USA
| | - Junrui Li
- Department of Chemistry Brown University Providence RI 02912 USA
| | | | - Shouheng Sun
- Department of Chemistry Brown University Providence RI 02912 USA
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18
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Feng J, Song Q, Zhang B, Wu Y, Wang T, Jiang L. Large-Scale, Long-Range-Ordered Patterning of Nanocrystals via Capillary-Bridge Manipulation. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2017; 29:1703143. [PMID: 29059508 DOI: 10.1002/adma.201703143] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2017] [Revised: 09/02/2017] [Indexed: 06/07/2023]
Abstract
Deterministic assembly of nanoparticles with programmable patterns is a core opportunity for property-by-design fabrication and large-scale integration of functional materials and devices. The wet-chemical-synthesized colloidal nanocrystals are compatible with solution assembly techniques, thus possessing advantages of high efficiency, low cost, and large scale. However, conventional solution process suffers from tradeoffs between spatial precision and long-range order of nanocrystal assembly arising from the uncontrollable dewetting dynamics and fluid flow. Here, a capillary-bridge manipulation method is demonstrated for directing the dewetting of nanocrystal inks and deterministically patterning long-range-ordered superlattice structures. This is achieved by employing micropillars with programmable size, arrangement, and shape, which permits deterministic manipulation of geometry, position, and dewetting dynamics of capillary bridges. Various superlattice structures, including one-dimensional (1D), circle, square, pentagon, hexagon, pentagram, cross arrays, are fabricated. Compared to the glassy thin films, long-range-ordered superlattice arrays exhibit improved ferroelectric polarization. Coassembly of nanocrystal superlattice and organic functional molecule is further demonstrated. Through introducing azobenzene into superlattice arrays, a switchable ferroelectric polarization is realized, which is triggered by order-disorder transition of nanocrystal stacking in reversible isomerization process of azobenzene. This method offers a platform for patterning nanocrystal superlattices and fabricating microdevices with functionalities for multiferroics, electronics, and photonics.
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Affiliation(s)
- Jiangang Feng
- Key Laboratory of Bioinspired Smart Interfacial Science, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
- University of Chinese Academy of Science, Beijing, 100049, P. R. China
| | - Qian Song
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, Chinese Academy of Science, Beijing, 100190, P. R. China
- University of Chinese Academy of Science, Beijing, 100049, P. R. China
| | - Bo Zhang
- School of Chemistry, Beihang University, Beijing, 100191, P. R. China
| | - Yuchen Wu
- Key Laboratory of Bioinspired Smart Interfacial Science, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
| | - Tie Wang
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, Chinese Academy of Science, Beijing, 100190, P. R. China
| | - Lei Jiang
- Key Laboratory of Bioinspired Smart Interfacial Science, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
- School of Chemistry, Beihang University, Beijing, 100191, P. R. China
- University of Chinese Academy of Science, Beijing, 100049, P. R. China
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19
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Thrift WJ, Nguyen CQ, Darvishzadeh-Varcheie M, Zare S, Sharac N, Sanderson RN, Dupper TJ, Hochbaum AI, Capolino F, Abdolhosseini Qomi MJ, Ragan R. Driving Chemical Reactions in Plasmonic Nanogaps with Electrohydrodynamic Flow. ACS NANO 2017; 11:11317-11329. [PMID: 29053246 DOI: 10.1021/acsnano.7b05815] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Nanoparticles from colloidal solution-with controlled composition, size, and shape-serve as excellent building blocks for plasmonic devices and metasurfaces. However, understanding hierarchical driving forces affecting the geometry of oligomers and interparticle gap spacings is still needed to fabricate high-density architectures over large areas. Here, electrohydrodynamic (EHD) flow is used as a long-range driving force to enable carbodiimide cross-linking between nanospheres and produces oligomers exhibiting sub-nanometer gap spacing over mm2 areas. Anhydride linkers between nanospheres are observed via surface-enhanced Raman scattering (SERS) spectroscopy. The anhydride linkers are cleavable via nucleophilic substitution and enable placement of nucleophilic molecules in electromagnetic hotspots. Atomistic simulations elucidate that the transient attractive force provided by EHD flow is needed to provide a sufficient residence time for anhydride cross-linking to overcome slow reaction kinetics. This synergistic analysis shows assembly involves an interplay between long-range driving forces increasing nanoparticle-nanoparticle interactions and probability that ligands are in proximity to overcome activation energy barriers associated with short-range chemical reactions. Absorption spectroscopy and electromagnetic full-wave simulations show that variations in nanogap spacing have a greater influence on optical response than variations in close-packed oligomer geometry. The EHD flow-anhydride cross-linking assembly method enables close-packed oligomers with uniform gap spacings that produce uniform SERS enhancement factors. These results demonstrate the efficacy of colloidal driving forces to selectively enable chemical reactions leading to future assembly platforms for large-area nanodevices.
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Affiliation(s)
- William J Thrift
- Department of Chemical Engineering and Materials Science, University of California, Irvine , Irvine, California 92697-2575, United States
| | - Cuong Q Nguyen
- Department of Chemical Engineering and Materials Science, University of California, Irvine , Irvine, California 92697-2575, United States
| | - Mahsa Darvishzadeh-Varcheie
- Department of Electrical Engineering and Computer Science, University of California, Irvine , Irvine, California 92697-2625, United States
| | - Siavash Zare
- Department of Civil and Environmental Engineering, University of California, Irvine , Irvine, California 92697-2175, United States
| | - Nicholas Sharac
- Department of Chemistry, University of California, Irvine , Irvine, California 92697-2025, United States
| | - Robert N Sanderson
- Department of Physics and Astronomy, University of California, Irvine , Irvine, California 92697-4575, United States
| | - Torin J Dupper
- Department of Chemistry, University of California, Irvine , Irvine, California 92697-2025, United States
| | - Allon I Hochbaum
- Department of Chemical Engineering and Materials Science, University of California, Irvine , Irvine, California 92697-2575, United States
- Department of Chemistry, University of California, Irvine , Irvine, California 92697-2025, United States
| | - Filippo Capolino
- Department of Electrical Engineering and Computer Science, University of California, Irvine , Irvine, California 92697-2625, United States
| | | | - Regina Ragan
- Department of Chemical Engineering and Materials Science, University of California, Irvine , Irvine, California 92697-2575, United States
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20
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Li T, Xue B, Wang B, Guo G, Han D, Yan Y, Dong A. Tubular Monolayer Superlattices of Hollow Mn3O4 Nanocrystals and Their Oxygen Reduction Activity. J Am Chem Soc 2017; 139:12133-12136. [DOI: 10.1021/jacs.7b06587] [Citation(s) in RCA: 91] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Tongtao Li
- Collaborative Innovation
Center of Chemistry for Energy Materials, Shanghai Key Laboratory
of Molecular Catalysis and Innovative Materials, and Department of
Chemistry, Fudan University, Shanghai 200433, China
| | - Bin Xue
- Collaborative Innovation
Center of Chemistry for Energy Materials, Shanghai Key Laboratory
of Molecular Catalysis and Innovative Materials, and Department of
Chemistry, Fudan University, Shanghai 200433, China
| | - Biwei Wang
- Collaborative Innovation
Center of Chemistry for Energy Materials, Shanghai Key Laboratory
of Molecular Catalysis and Innovative Materials, and Department of
Chemistry, Fudan University, Shanghai 200433, China
| | - Guannan Guo
- Collaborative Innovation
Center of Chemistry for Energy Materials, Shanghai Key Laboratory
of Molecular Catalysis and Innovative Materials, and Department of
Chemistry, Fudan University, Shanghai 200433, China
| | - Dandan Han
- Collaborative Innovation
Center of Chemistry for Energy Materials, Shanghai Key Laboratory
of Molecular Catalysis and Innovative Materials, and Department of
Chemistry, Fudan University, Shanghai 200433, China
| | - Yancui Yan
- Collaborative Innovation
Center of Chemistry for Energy Materials, Shanghai Key Laboratory
of Molecular Catalysis and Innovative Materials, and Department of
Chemistry, Fudan University, Shanghai 200433, China
| | - Angang Dong
- Collaborative Innovation
Center of Chemistry for Energy Materials, Shanghai Key Laboratory
of Molecular Catalysis and Innovative Materials, and Department of
Chemistry, Fudan University, Shanghai 200433, China
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21
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Hou X, Cheng XF, Xiao X, He JH, Xu QF, Li H, Li NJ, Chen DY, Lu JM. Surface Engineering of ITO Substrates to Improve the Memory Performance of an Asymmetric Conjugated Molecule with a Side Chain. Chem Asian J 2017; 12:2278-2283. [DOI: 10.1002/asia.201700706] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2017] [Revised: 06/09/2017] [Indexed: 11/06/2022]
Affiliation(s)
- Xiang Hou
- College of Chemistry; Chemical Engineering and Materials Science; Collaborative Innovation Center of Suzhou Nano Science and Technology Institution; Soochow University; Suzhou 215123 China
| | - Xue-Feng Cheng
- College of Chemistry; Chemical Engineering and Materials Science; Collaborative Innovation Center of Suzhou Nano Science and Technology Institution; Soochow University; Suzhou 215123 China
| | - Xin Xiao
- College of Chemistry; Chemical Engineering and Materials Science; Collaborative Innovation Center of Suzhou Nano Science and Technology Institution; Soochow University; Suzhou 215123 China
| | - Jing-Hui He
- College of Chemistry; Chemical Engineering and Materials Science; Collaborative Innovation Center of Suzhou Nano Science and Technology Institution; Soochow University; Suzhou 215123 China
| | - Qing-Feng Xu
- College of Chemistry; Chemical Engineering and Materials Science; Collaborative Innovation Center of Suzhou Nano Science and Technology Institution; Soochow University; Suzhou 215123 China
| | - Hua Li
- College of Chemistry; Chemical Engineering and Materials Science; Collaborative Innovation Center of Suzhou Nano Science and Technology Institution; Soochow University; Suzhou 215123 China
| | - Na-Jun Li
- College of Chemistry; Chemical Engineering and Materials Science; Collaborative Innovation Center of Suzhou Nano Science and Technology Institution; Soochow University; Suzhou 215123 China
| | - Dong-Yun Chen
- College of Chemistry; Chemical Engineering and Materials Science; Collaborative Innovation Center of Suzhou Nano Science and Technology Institution; Soochow University; Suzhou 215123 China
| | - Jian-Mei Lu
- College of Chemistry; Chemical Engineering and Materials Science; Collaborative Innovation Center of Suzhou Nano Science and Technology Institution; Soochow University; Suzhou 215123 China
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22
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Yu Y, Yu D, Orme CA. Reversible, Tunable, Electric-Field Driven Assembly of Silver Nanocrystal Superlattices. NANO LETTERS 2017; 17:3862-3869. [PMID: 28511013 DOI: 10.1021/acs.nanolett.7b01323] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Nanocrystal superlattices are typically fabricated by either solvent evaporation or destabilization methods that require long time periods to generate highly ordered structures. In this paper, we report for the first time the use of electric fields to reversibly drive nanocrystal assembly into superlattices without changing solvent volume or composition, and show that this method only takes 20 min to produce polyhedral colloidal crystals, which would otherwise need days or weeks. This method offers a way to control the lattice constants and degree of preferential orientation for superlattices and can suppress the uniaxial superlattice contraction associated with solvent evaporation. In situ small-angle X-ray scattering experiments indicated that nanocrystal superlattices were formed while solvated, not during drying.
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Affiliation(s)
- Yixuan Yu
- Lawrence Livermore National Laboratory , 7000 East Avenue, Livermore, California 94550, United States
| | - Dian Yu
- University of California Los Angeles , Los Angeles, California 90095, United States
| | - Christine A Orme
- Lawrence Livermore National Laboratory , 7000 East Avenue, Livermore, California 94550, United States
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23
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Qiao L, Swihart MT. Solution-phase synthesis of transition metal oxide nanocrystals: Morphologies, formulae, and mechanisms. Adv Colloid Interface Sci 2017; 244:199-266. [PMID: 27246718 DOI: 10.1016/j.cis.2016.01.005] [Citation(s) in RCA: 61] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2015] [Revised: 01/13/2016] [Accepted: 01/20/2016] [Indexed: 12/26/2022]
Abstract
In this review, we provide a broad overview of solution-phase synthesis of transition metal oxide nanocrystals (NCs), including a substantial catalog of published methods, and a unifying classification and discussion. Prevalent subcategories of solution-phase synthesis are delineated and general features are summarized. The diverse morphologies achievable by solution-phase synthesis are defined and exemplified. This is followed by sequential consideration of the solution-phase synthesis of first-row transition metal oxides. The common oxides of Ti, V, Mn, Fe, Co, Ni, Cu, and Zn are introduced; major crystal lattices are presented and illustrated; representative examples are explained; and numerous synthesis formulae are tabulated. Following this presentation of experimental studies, we present an introduction to theories of NC nucleation and growth. Various models of NC nucleation and growth are addressed, and important concepts determining the growth and structure of colloidal NCs are explained. Overall, this review provides an entry into systematic understanding of solution-phase synthesis of nanocrystals, with a reasonably comprehensive survey of results for the important category of transition metal oxide NCs.
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Affiliation(s)
- Liang Qiao
- Chemical and Biological Engineering, University at Buffalo (SUNY), Buffalo, NY 14260-4200, USA
| | - Mark T Swihart
- Chemical and Biological Engineering, University at Buffalo (SUNY), Buffalo, NY 14260-4200, USA.
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24
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Gu XW, Ye X, Koshy DM, Vachhani S, Hosemann P, Alivisatos AP. Tolerance to structural disorder and tunable mechanical behavior in self-assembled superlattices of polymer-grafted nanocrystals. Proc Natl Acad Sci U S A 2017; 114:2836-2841. [PMID: 28242704 PMCID: PMC5358368 DOI: 10.1073/pnas.1618508114] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Abstract
Large, freestanding membranes with remarkably high elastic modulus (>10 GPa) have been fabricated through the self-assembly of ligand-stabilized inorganic nanocrystals, even though these nanocrystals are connected only by soft organic ligands (e.g., dodecanethiol or DNA) that are not cross-linked or entangled. Recent developments in the synthesis of polymer-grafted nanocrystals have greatly expanded the library of accessible superlattice architectures, which allows superlattice mechanical behavior to be linked to specific structural features. Here, colloidal self-assembly is used to organize polystyrene-grafted Au nanocrystals at a fluid interface to form ordered solids with sub-10-nm periodic features. Thin-film buckling and nanoindentation are used to evaluate the mechanical behavior of polymer-grafted nanocrystal superlattices while exploring the role of polymer structural conformation, nanocrystal packing, and superlattice dimensions. Superlattices containing 3-20 vol % Au are found to have an elastic modulus of ∼6-19 GPa, and hardness of ∼120-170 MPa. We find that rapidly self-assembled superlattices have the highest elastic modulus, despite containing significant structural defects. Polymer extension, interdigitation, and grafting density are determined to be critical parameters that govern superlattice elastic and plastic deformation.
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Affiliation(s)
- X Wendy Gu
- Department of Chemistry, University of California, Berkeley, CA 94720
| | - Xingchen Ye
- Department of Chemistry, University of California, Berkeley, CA 94720
| | - David M Koshy
- Department of Chemical and Biomolecular Engineering, University of California, Berkeley, CA 94720
| | | | - Peter Hosemann
- Department of Nuclear Engineering, University of California, Berkeley, CA 94720
| | - A Paul Alivisatos
- Department of Chemistry, University of California, Berkeley, CA 94720;
- Department of Materials Science and Engineering, University of California, Berkeley, CA 94720
- Materials Science Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720
- Kavli Energy NanoScience Institute, University of California, Berkeley and Lawrence Berkeley National Laboratory, Berkeley, CA 94720
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25
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Paik T, Yun H, Fleury B, Hong SH, Jo PS, Wu Y, Oh SJ, Cargnello M, Yang H, Murray CB, Kagan CR. Hierarchical Materials Design by Pattern Transfer Printing of Self-Assembled Binary Nanocrystal Superlattices. NANO LETTERS 2017; 17:1387-1394. [PMID: 28146634 DOI: 10.1021/acs.nanolett.6b04279] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
We demonstrate the fabrication of hierarchical materials by controlling the structure of highly ordered binary nanocrystal superlattices (BNSLs) on multiple length scales. Combinations of magnetic, plasmonic, semiconducting, and insulating colloidal nanocrystal (NC) building blocks are self-assembled into BNSL membranes via the liquid-interfacial assembly technique. Free-standing BNSL membranes are transferred onto topographically structured poly(dimethylsiloxane) molds via the Langmuir-Schaefer technique and then deposited in patterns onto substrates via transfer printing. BNSLs with different structural motifs are successfully patterned into various meso- and microstructures such as lines, circles, and even three-dimensional grids across large-area substrates. A combination of electron microscopy and grazing incidence small-angle X-ray scattering (GISAXS) measurements confirm the ordering of NC building blocks in meso- and micropatterned BNSLs. This technique demonstrates structural diversity in the design of hierarchical materials by assembling BNSLs from NC building blocks of different composition and size by patterning BNSLs into various size and shape superstructures of interest for a broad range of applications.
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Affiliation(s)
- Taejong Paik
- School of Integrative Engineering, Chung-Ang University , Seoul, 06974, South Korea
| | | | | | - Sung-Hoon Hong
- Electronics and Telecommunications Research Institute , Daejeon, 34129, South Korea
| | - Pil Sung Jo
- Complex Assemblies of Soft Matter, CNRS-SOLVAY-PENN UMI 3254 , Bristol, Pennsylvania 19007, United States
| | | | - Soong-Ju Oh
- Department of Materials Science and Engineering, Korea University , Seoul 02841, South Korea
| | - Matteo Cargnello
- Department of Chemical Engineering and SUNCAT Center for Interface Science and Catalysis, Stanford University , Stanford, California 94305, United States
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26
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Zhu J, Hersam MC. Assembly and Electronic Applications of Colloidal Nanomaterials. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2017; 29:1603895. [PMID: 27862354 DOI: 10.1002/adma.201603895] [Citation(s) in RCA: 65] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/22/2016] [Revised: 09/01/2016] [Indexed: 06/06/2023]
Abstract
Artificial solids and thin films assembled from colloidal nanomaterials give rise to versatile properties that can be exploited in a range of technologies. In particular, solution-based processes allow for the large-scale and low-cost production of nanoelectronics on rigid or mechanically flexible substrates. To achieve this goal, several processing steps require careful consideration, including nanomaterial synthesis or exfoliation, purification, separation, assembly, hybrid integration, and device testing. Using a ubiquitous electronic device - the field-effect transistor - as a platform, colloidal nanomaterials in three electronic material categories are reviewed systematically: semiconductors, conductors, and dielectrics. The resulting comparative analysis reveals promising opportunities and remaining challenges for colloidal nanomaterials in electronic applications, thereby providing a roadmap for future research and development.
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Affiliation(s)
- Jian Zhu
- Department of Materials Science and Engineering, Northwestern University, 2220 Campus Drive, Evanston, Illinois, 60208-3108, USA
| | - Mark C Hersam
- Department of Materials Science and Engineering, Northwestern University, 2220 Campus Drive, Evanston, Illinois, 60208-3108, USA
- Graduate Program in Applied Physics, Department of Chemistry, Department of Medicine, Department of Electrical Engineering and Computer Science, Northwestern University, Evanston, IL, 60208-3108, USA
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27
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Hou X, Xiao X, Zhou QH, Cheng XF, He JH, Xu QF, Li H, Li NJ, Chen DY, Lu JM. Surface engineering to achieve organic ternary memory with a high device yield and improved performance. Chem Sci 2016; 8:2344-2351. [PMID: 28451339 PMCID: PMC5364995 DOI: 10.1039/c6sc03986c] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2016] [Accepted: 12/15/2016] [Indexed: 11/21/2022] Open
Abstract
Organic memories fabricated on surface-engineered indium tin oxide show the highest ternary yield (82%) to date and better performance.
Squaraine molecules deposited on indium tin oxide (ITO) substrates modified with phosphonic acids crystalize more orderly than do those on untreated ITO. The as-fabricated electro-resistive memories show the highest ternary device yield observed to date (82%), a narrower switching voltage distribution, and better retention as well as resistance uniformity.
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Affiliation(s)
- Xiang Hou
- College of Chemistry, Chemical Engineering and Materials Science , Collaborative Innovation Center of Suzhou Nano Science and Technology , National United Engineering Laboratory of Functionalized Environmental Adsorption Materials , Soochow University , Suzhou 215123 , PR China . ;
| | - Xin Xiao
- College of Chemistry, Chemical Engineering and Materials Science , Collaborative Innovation Center of Suzhou Nano Science and Technology , National United Engineering Laboratory of Functionalized Environmental Adsorption Materials , Soochow University , Suzhou 215123 , PR China . ;
| | - Qian-Hao Zhou
- College of Chemistry, Chemical Engineering and Materials Science , Collaborative Innovation Center of Suzhou Nano Science and Technology , National United Engineering Laboratory of Functionalized Environmental Adsorption Materials , Soochow University , Suzhou 215123 , PR China . ;
| | - Xue-Feng Cheng
- College of Chemistry, Chemical Engineering and Materials Science , Collaborative Innovation Center of Suzhou Nano Science and Technology , National United Engineering Laboratory of Functionalized Environmental Adsorption Materials , Soochow University , Suzhou 215123 , PR China . ;
| | - Jing-Hui He
- College of Chemistry, Chemical Engineering and Materials Science , Collaborative Innovation Center of Suzhou Nano Science and Technology , National United Engineering Laboratory of Functionalized Environmental Adsorption Materials , Soochow University , Suzhou 215123 , PR China . ;
| | - Qing-Feng Xu
- College of Chemistry, Chemical Engineering and Materials Science , Collaborative Innovation Center of Suzhou Nano Science and Technology , National United Engineering Laboratory of Functionalized Environmental Adsorption Materials , Soochow University , Suzhou 215123 , PR China . ;
| | - Hua Li
- College of Chemistry, Chemical Engineering and Materials Science , Collaborative Innovation Center of Suzhou Nano Science and Technology , National United Engineering Laboratory of Functionalized Environmental Adsorption Materials , Soochow University , Suzhou 215123 , PR China . ;
| | - Na-Jun Li
- College of Chemistry, Chemical Engineering and Materials Science , Collaborative Innovation Center of Suzhou Nano Science and Technology , National United Engineering Laboratory of Functionalized Environmental Adsorption Materials , Soochow University , Suzhou 215123 , PR China . ;
| | - Dong-Yun Chen
- College of Chemistry, Chemical Engineering and Materials Science , Collaborative Innovation Center of Suzhou Nano Science and Technology , National United Engineering Laboratory of Functionalized Environmental Adsorption Materials , Soochow University , Suzhou 215123 , PR China . ;
| | - Jian-Mei Lu
- College of Chemistry, Chemical Engineering and Materials Science , Collaborative Innovation Center of Suzhou Nano Science and Technology , National United Engineering Laboratory of Functionalized Environmental Adsorption Materials , Soochow University , Suzhou 215123 , PR China . ;
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28
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Yang J, Choi MK, Kim DH, Hyeon T. Designed Assembly and Integration of Colloidal Nanocrystals for Device Applications. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2016; 28:1176-207. [PMID: 26707709 DOI: 10.1002/adma.201502851] [Citation(s) in RCA: 117] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2015] [Revised: 07/31/2015] [Indexed: 05/13/2023]
Abstract
Colloidal nanocrystals have been intensively studied over the past three decades due to their unique properties that originate, in large part, from their nanometer-scale sizes. For applications in electronic and optoelectronic devices, colloidal nanoparticles are generally employed as assembled nanocrystal solids, rather than as individual particles. Consequently, tailoring 2D patterns as well as 3D architectures of assembled nanocrystals is critical for their various applications to micro- and nanoscale devices. Here, recent advances in the designed assembly, film fabrication, and printing/integration methods for colloidal nanocrystals are presented. The advantages and drawbacks of these methods are compared, and various device applications of assembled/integrated colloidal nanocrystal solids are discussed.
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Affiliation(s)
- Jiwoong Yang
- Center for Nanoparticle Research, Institute for Basic Science (IBS), Seoul, 151-742, Republic of Korea
- School of Chemical and Biological Engineering, Seoul National University, Seoul, 151-742, Republic of Korea
| | - Moon Kee Choi
- Center for Nanoparticle Research, Institute for Basic Science (IBS), Seoul, 151-742, Republic of Korea
- School of Chemical and Biological Engineering, Seoul National University, Seoul, 151-742, Republic of Korea
| | - Dae-Hyeong Kim
- Center for Nanoparticle Research, Institute for Basic Science (IBS), Seoul, 151-742, Republic of Korea
- School of Chemical and Biological Engineering, Seoul National University, Seoul, 151-742, Republic of Korea
| | - Taeghwan Hyeon
- Center for Nanoparticle Research, Institute for Basic Science (IBS), Seoul, 151-742, Republic of Korea
- School of Chemical and Biological Engineering, Seoul National University, Seoul, 151-742, Republic of Korea
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29
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Li Y, Li H, He J, Xu Q, Li N, Chen D, Lu J. Inserting Thienyl Linkers into Conjugated Molecules for Efficient Multilevel Electronic Memory: A New Understanding of Charge-Trapping in Organic Materials. Chem Asian J 2016; 11:906-14. [DOI: 10.1002/asia.201501441] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2015] [Indexed: 11/11/2022]
Affiliation(s)
- Yang Li
- College of Chemistry; Chemical Engineering and Materials Science; Collaborative Innovation Center of Suzhou Nano Science and Technology; Soochow University; Suzhou 215123 P. R. China
| | - Hua Li
- College of Chemistry; Chemical Engineering and Materials Science; Collaborative Innovation Center of Suzhou Nano Science and Technology; Soochow University; Suzhou 215123 P. R. China
| | - Jinghui He
- College of Chemistry; Chemical Engineering and Materials Science; Collaborative Innovation Center of Suzhou Nano Science and Technology; Soochow University; Suzhou 215123 P. R. China
| | - Qingfeng Xu
- College of Chemistry; Chemical Engineering and Materials Science; Collaborative Innovation Center of Suzhou Nano Science and Technology; Soochow University; Suzhou 215123 P. R. China
| | - Najun Li
- College of Chemistry; Chemical Engineering and Materials Science; Collaborative Innovation Center of Suzhou Nano Science and Technology; Soochow University; Suzhou 215123 P. R. China
| | - Dongyun Chen
- College of Chemistry; Chemical Engineering and Materials Science; Collaborative Innovation Center of Suzhou Nano Science and Technology; Soochow University; Suzhou 215123 P. R. China
| | - Jianmei Lu
- College of Chemistry; Chemical Engineering and Materials Science; Collaborative Innovation Center of Suzhou Nano Science and Technology; Soochow University; Suzhou 215123 P. R. China
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30
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Breitwieser R, Auvray T, Volatron F, Salzemann C, Ngo AT, Albouy PA, Proust A, Petit C. Binary Superlattices from {Mo132} Polyoxometalates and Maghemite Nanocrystals: Long-Range Ordering and Fine-Tuning of Dipole Interactions. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2016; 12:220-228. [PMID: 26578032 DOI: 10.1002/smll.201502127] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2015] [Revised: 09/19/2015] [Indexed: 06/05/2023]
Abstract
In the present article, the successful coassembly of spherical 6.2 nm maghemite (γ-Fe2O3) nanocrystals and giant polyoxometalates (POMs) such as 2.9 nm {Mo132} is demonstrated. To do so, colloidal solutions of oleic acid-capped γ-Fe2O3 and long-chain alkylammonium-encapsulated {Mo132 } dispersed in chloroform are mixed together and supported self-organized binary superlattices are obtained upon the solvent evaporation on immersed substrates. Both electronic microscopy and small angles X-ray scattering data reveal an AB-type structure and an enhanced structuration of the magnetic nanocrystals (MNCs) assembly with POMs in octahedral interstices. Therefore, {Mo132} acts as an efficient binder constituent for improving the nanocrystals ordering in 3D films. Interestingly, in the case of didodecyldimethylammonium (C12)-encapsulated POMs, the long-range ordered binary assemblies are obtained while preserving the nanocrystals magnetic properties due to weak POMs-MNCs interactions. On the other hand, POMs of larger effective diameter can be employed as spacer blocks for MNCs as shown by using {Mo132} capped with dioctadecyldimethylammonium (C18) displaying longer chains. In that case, it is shown that POMs can also be used for fine-tuning the dipolar interactions in γ-Fe2O3 nanocrystal assemblies.
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Affiliation(s)
- Romain Breitwieser
- Sorbonne Universités, UPMC Univ Paris 06, CNRS UMR 8232, Institut Parisien de Chimie Moléculaire, Université Pierre et Marie Curie, 4 place Jussieu, case courrier 42, F-75005, Paris CEDEX 05, France
- Sorbonne Universités, UPMC Univ Paris 06, CNRS, UMR 8233, MONARIS, Case courrier, 52, Université Pierre et Marie Curie, 4 place Jussieu, F-75005, Paris, France
| | - Thomas Auvray
- Sorbonne Universités, UPMC Univ Paris 06, CNRS UMR 8232, Institut Parisien de Chimie Moléculaire, Université Pierre et Marie Curie, 4 place Jussieu, case courrier 42, F-75005, Paris CEDEX 05, France
- Sorbonne Universités, UPMC Univ Paris 06, CNRS, UMR 8233, MONARIS, Case courrier, 52, Université Pierre et Marie Curie, 4 place Jussieu, F-75005, Paris, France
| | - Florence Volatron
- Sorbonne Universités, UPMC Univ Paris 06, CNRS UMR 8232, Institut Parisien de Chimie Moléculaire, Université Pierre et Marie Curie, 4 place Jussieu, case courrier 42, F-75005, Paris CEDEX 05, France
| | - Caroline Salzemann
- Sorbonne Universités, UPMC Univ Paris 06, CNRS, UMR 8233, MONARIS, Case courrier, 52, Université Pierre et Marie Curie, 4 place Jussieu, F-75005, Paris, France
| | - Anh-Tu Ngo
- Sorbonne Universités, UPMC Univ Paris 06, CNRS, UMR 8233, MONARIS, Case courrier, 52, Université Pierre et Marie Curie, 4 place Jussieu, F-75005, Paris, France
| | - Pierre-Antoine Albouy
- Laboratoire de Physique des solides, UMR CNRS 8502, Université Paris Sud, Bât. 510, 91405, Orsay CEDEX, France
| | - Anna Proust
- Sorbonne Universités, UPMC Univ Paris 06, CNRS UMR 8232, Institut Parisien de Chimie Moléculaire, Université Pierre et Marie Curie, 4 place Jussieu, case courrier 42, F-75005, Paris CEDEX 05, France
| | - Christophe Petit
- Sorbonne Universités, UPMC Univ Paris 06, CNRS, UMR 8233, MONARIS, Case courrier, 52, Université Pierre et Marie Curie, 4 place Jussieu, F-75005, Paris, France
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Kagan CR, Murray CB. Charge transport in strongly coupled quantum dot solids. NATURE NANOTECHNOLOGY 2015; 10:1013-26. [PMID: 26551016 DOI: 10.1038/nnano.2015.247] [Citation(s) in RCA: 241] [Impact Index Per Article: 26.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2015] [Accepted: 09/21/2015] [Indexed: 05/20/2023]
Abstract
The emergence of high-mobility, colloidal semiconductor quantum dot (QD) solids has triggered fundamental studies that map the evolution from carrier hopping through localized quantum-confined states to band-like charge transport in delocalized and hybridized states of strongly coupled QD solids, in analogy with the construction of solids from atoms. Increased coupling in QD solids has led to record-breaking performance in QD devices, such as electronic transistors and circuitry, optoelectronic light-emitting diodes, photovoltaic devices and photodetectors, and thermoelectric devices. Here, we review the advances in synthesis, assembly, ligand treatments and doping that have enabled high-mobility QD solids, as well as the experiments and theory that depict band-like transport in the QD solid state. We also present recent QD devices and discuss future prospects for QD materials and device design.
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Affiliation(s)
- Cherie R Kagan
- Department of Electrical and Systems Engineering, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA
- Department of Materials Science and Engineering, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA
- Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA
| | - Christopher B Murray
- Department of Materials Science and Engineering, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA
- Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA
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Li P, Zhou Y, Zhao Z, Xu Q, Wang X, Xiao M, Zou Z. Hexahedron Prism-Anchored Octahedronal CeO2: Crystal Facet-Based Homojunction Promoting Efficient Solar Fuel Synthesis. J Am Chem Soc 2015; 137:9547-50. [DOI: 10.1021/jacs.5b05926] [Citation(s) in RCA: 249] [Impact Index Per Article: 27.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
| | - Yong Zhou
- Key
Laboratory of Modern Acoustics (MOE), Institute of Acoustics, Department
of Physics, ‡National Laboratory of Solid State Microstructures, School of Physics, §Eco-Materials and Renewable
Energy Research Center (ERERC), ∥Collaborative Innovation Center of Advanced
Microstructures, Nanjing University, Nanjing 210093, China
| | - Zongyan Zhao
- Faculty
of Materials Science and Engineering, Key Laboratory of Advanced Materials
of Yunnan Province, Kunming University of Science and Technology, Kunming 650093, China
| | | | | | | | - Zhigang Zou
- Key
Laboratory of Modern Acoustics (MOE), Institute of Acoustics, Department
of Physics, ‡National Laboratory of Solid State Microstructures, School of Physics, §Eco-Materials and Renewable
Energy Research Center (ERERC), ∥Collaborative Innovation Center of Advanced
Microstructures, Nanjing University, Nanjing 210093, China
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