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Lan X, Chen M, Hudson MH, Kamysbayev V, Wang Y, Guyot-Sionnest P, Talapin DV. Quantum dot solids showing state-resolved band-like transport. NATURE MATERIALS 2020; 19:323-329. [PMID: 31988516 DOI: 10.1038/s41563-019-0582-2] [Citation(s) in RCA: 76] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/01/2019] [Accepted: 12/11/2019] [Indexed: 06/10/2023]
Abstract
Improving charge mobility in quantum dot (QD) films is important for the performance of photodetectors, solar cells and light-emitting diodes. However, these applications also require preservation of well defined QD electronic states and optical transitions. Here, we present HgTe QD films that show high mobility for charges transported through discrete QD states. A hybrid surface passivation process efficiently eliminates surface states, provides tunable air-stable n and p doping and enables hysteresis-free filling of QD states evidenced by strong conductance modulation. QD films dried at room temperature without any post-treatments exhibit mobility up to μ ~ 8 cm2 V-1 s-1 at a low carrier density of less than one electron per QD, band-like behaviour down to 77 K, and similar drift and Hall mobilities at all temperatures. This unprecedented set of electronic properties raises important questions about the delocalization and hopping mechanisms for transport in QD solids, and introduces opportunities for improving QD technologies.
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Affiliation(s)
- Xinzheng Lan
- Department of Chemistry and James Franck Institute, University of Chicago, Chicago, IL, USA
| | - Menglu Chen
- Department of Chemistry and James Franck Institute, University of Chicago, Chicago, IL, USA
| | - Margaret H Hudson
- Department of Chemistry and James Franck Institute, University of Chicago, Chicago, IL, USA
| | - Vladislav Kamysbayev
- Department of Chemistry and James Franck Institute, University of Chicago, Chicago, IL, USA
| | - Yuanyuan Wang
- Department of Chemistry and James Franck Institute, University of Chicago, Chicago, IL, USA
| | - Philippe Guyot-Sionnest
- Department of Chemistry and James Franck Institute, University of Chicago, Chicago, IL, USA.
| | - Dmitri V Talapin
- Department of Chemistry and James Franck Institute, University of Chicago, Chicago, IL, USA.
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2
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Sehrawat P, Islam SS. An ultrafast quantum thermometer from graphene quantum dots. NANOSCALE ADVANCES 2019; 1:1772-1783. [PMID: 36134218 PMCID: PMC9417143 DOI: 10.1039/c8na00361k] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2018] [Accepted: 02/15/2019] [Indexed: 06/11/2023]
Abstract
We report an ultra-sensitive temperature sensor derived from graphene quantum dots (GQDs) embedded in a self-standing reduced graphene oxide (RGO) film. The GQDs are obtained as a natural derivative during synthesis of GO to RGO. A fundamental study on low temperature transport mechanisms reveals the applicability of temperature zone specific 'variable range hopping (VRH)' conduction models, i.e. Mott-VRH, Efros-Shklovskii-VRH and activation energy supported VRH. On the basis of transport behavior and confirmed by characterization analyses, the RGO film is modeled as GQD arrays where graphitic (sp2) domains behave as QDs and oxygenated (sp3) domains between interdots act as tunneling barriers. Temperature dependent resistance and current-voltage (I-V) characteristics indicate high sensitivity where sensor resistance changes by almost six orders of magnitude as the temperature is varied between 300 and 12 K. In convection mode, the developed temperature sensor shows a temperature coefficient of resistance (TCR) of ∼-1999% K-1 in the 300-77 K temperature range, which is much higher than the TCR values reported so far. Additionally, the sensor exhibits an extremely fast response (∼0.3 s) and recovery (0.8 s) time; and such high TCR leads to ultra high resolution of ∼ μK. The sensor shows excellent repeatability with negligible drift over several cycles. These studies are crucial for modern day thermal management and sensitive cryogenic applications.
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Affiliation(s)
- Poonam Sehrawat
- Centre for Nanoscience and Nanotechnology, Jamia Millia Islamia (A Central University) New Delhi 110025 India +91 11 26987153
| | - S S Islam
- Centre for Nanoscience and Nanotechnology, Jamia Millia Islamia (A Central University) New Delhi 110025 India +91 11 26987153
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3
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Abstract
Invited by the editorial committee of the Annual Review of Physical Chemistry to "contribute my autobiography," I present it here, as I understand the term. It is about my parents, my mentors, my coworkers, and my friends in learning and the scientific problems that we tried to address. Courtesy of the editorial assistance of Annual Reviews, some of the science is in the figure captions and sidebars. I am by no means done: I am currently trying to fuse the quantitative rigor of physical chemistry with systems biology while also dealing with a post-Born-Oppenheimer regime in electronic dynamics and am attempting to instruct molecules to perform advanced logic.
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Affiliation(s)
- Raphael D Levine
- The Fritz Haber Research Center for Molecular Dynamics, Institute of Chemistry, The Hebrew University of Jerusalem, Jerusalem 91904, Israel; .,Department of Molecular and Medical Pharmacology, David Geffen School of Medicine, and Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90095, USA
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4
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Qu L, Vörös M, Zimanyi GT. Metal-Insulator Transition in Nanoparticle Solids: Insights from Kinetic Monte Carlo Simulations. Sci Rep 2017; 7:7071. [PMID: 28765599 PMCID: PMC5539282 DOI: 10.1038/s41598-017-06497-1] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2017] [Accepted: 06/13/2017] [Indexed: 11/09/2022] Open
Abstract
Progress has been rapid in increasing the efficiency of energy conversion in nanoparticles. However, extraction of the photo-generated charge carriers remains challenging. Encouragingly, the charge mobility has been improved recently by driving nanoparticle (NP) films across the metal-insulator transition (MIT). To simulate MIT in NP films, we developed a hierarchical Kinetic Monte Carlo transport model. Electrons transfer between neighboring NPs via activated hopping when the NP energies differ by more than an overlap energy, but transfer by a non-activated quantum delocalization, if the NP energies are closer than the overlap energy. As the overlap energy increases, emerging percolating clusters support a metallic transport across the entire film. We simulated the evolution of the temperature-dependent electron mobility. We analyzed our data in terms of two candidate models of the MIT: (a) as a Quantum Critical Transition, signaled by an effective gap going to zero; and (b) as a Quantum Percolation Transition, where a sample-spanning metallic percolation path is formed as the fraction of the hopping bonds in the transport paths is going to zero. We found that the Quantum Percolation Transition theory provides a better description of the MIT. We also observed an anomalously low gap region next to the MIT. We discuss the relevance of our results in the light of recent experimental measurements.
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Affiliation(s)
- Luman Qu
- Physics Department, University of California, Davis, USA
| | - Márton Vörös
- Materials Science Division, Argonne National Laboratory, Lemont, IL, 60439, USA
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5
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Dillon AD, Le Quoc L, Goktas M, Opasanont B, Dastidar S, Mengel S, Baxter JB, Fafarman AT. Thin films of copper indium selenide fabricated with high atom economy by electrophoretic deposition of nanocrystals under flow. Chem Eng Sci 2016. [DOI: 10.1016/j.ces.2016.06.056] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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6
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McCold CE, Fu Q, Howe JY, Hihath J. Conductance based characterization of structure and hopping site density in 2D molecule-nanoparticle arrays. NANOSCALE 2015; 7:14937-14945. [PMID: 26303001 DOI: 10.1039/c5nr04460j] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Composite molecule-nanoparticle hybrid systems have recently emerged as important materials for applications ranging from chemical sensing to nanoscale electronics. However, creating reproducible and repeatable composite materials with precise properties has remained one of the primary challenges to the implementation of these technologies. Understanding the sources of variation that dominate the assembly and transport behavior is essential for the advancement of nanoparticle-array based devices. In this work, we use a combination of charge-transport measurements, electron microscopy, and optical characterization techniques to determine the role of morphology and structure on the charge transport properties of 2-dimensional monolayer arrays of molecularly-interlinked Au nanoparticles. Using these techniques we are able to determine the role of both assembly-dependent and particle-dependent defects on the conductivities of the films. These results demonstrate that assembly processes dominate the dispersion of conductance values, while nanoparticle and ligand features dictate the mean value of the conductance. By performing a systematic study of the conductance of these arrays as a function of nanoparticle size we are able to extract the carrier mobility for specific molecular ligands. We show that nanoparticle polydispersity correlates with the void density in the array, and that because of this correlation it is possible to accurately determine the void density within the array directly from conductance measurements. These results demonstrate that conductance-based measurements can be used to accurately and non-destructively determine the morphological and structural properties of these hybrid arrays, and thus provide a characterization platform that helps move 2-dimensional nanoparticle arrays toward robust and reproducible electronic systems.
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Affiliation(s)
- Cliff E McCold
- Chemical Engineering and Materials Science, University of California, Davis, One Shields Ave., Davis, CA 95616, USA
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7
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Wang G, Ji J, Li C, Yu L, Duan W, Wei W, You X, Xu X. Type-II core–shell Si–CdS nanocrystals: synthesis and spectroscopic and electrical properties. Chem Commun (Camb) 2014; 50:11922-5. [DOI: 10.1039/c4cc04722b] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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8
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Jang J, Liu W, Son JS, Talapin DV. Temperature-dependent Hall and field-effect mobility in strongly coupled all-inorganic nanocrystal arrays. NANO LETTERS 2014; 14:653-62. [PMID: 24467484 DOI: 10.1021/nl403889u] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
We report on the temperature-dependent Hall effect characteristics of nanocrystal (NC) arrays prepared from colloidal InAs NCs capped with metal chalcogenide complex (MCC) ligands (In2Se4(2-) and Cu7S4(-)). Our study demonstrates that Hall effect measurements are a powerful way of exploring the fundamental properties of NC solids. We found that solution-cast 5.3 nm InAs NC films capped with copper sulfide MCC ligands exhibited high Hall mobility values over 16 cm(2)/(V s). We also showed that the nature of MCC ligands can control doping in NC solids. The comparative study of the temperature-dependent Hall and field-effect mobility values provides valuable insights concerning the charge transport mechanism and points to the transition from a weak to a strong coupling regime in all-inorganic InAs NC solids.
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Affiliation(s)
- Jaeyoung Jang
- Department of Chemistry and James Franck Institute, University of Chicago , Illinois 60637, United States
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9
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Liu W, Lee JS, Talapin DV. III–V Nanocrystals Capped with Molecular Metal Chalcogenide Ligands: High Electron Mobility and Ambipolar Photoresponse. J Am Chem Soc 2013; 135:1349-57. [DOI: 10.1021/ja308200f] [Citation(s) in RCA: 136] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Wenyong Liu
- Department of Chemistry and
James Frank Institute, University of Chicago, Illinois 60637, United States
| | - Jong-Soo Lee
- Department of Chemistry and
James Frank Institute, University of Chicago, Illinois 60637, United States
| | - Dmitri V. Talapin
- Department of Chemistry and
James Frank Institute, University of Chicago, Illinois 60637, United States
- Center for Nanoscale Materials,
Argonne National Lab, Argonne, Illinois 60439, United States
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10
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Wang T, Wang X, LaMontagne D, Wang Z, Wang Z, Cao YC. Shape-Controlled Synthesis of Colloidal Superparticles from Nanocubes. J Am Chem Soc 2012; 134:18225-8. [DOI: 10.1021/ja308962w] [Citation(s) in RCA: 110] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Tie Wang
- Department of Chemistry, University of Florida, Gainesville, Florida 32611,
United States
| | - Xirui Wang
- Department of Chemistry, University of Florida, Gainesville, Florida 32611,
United States
| | - Derek LaMontagne
- Department of Chemistry, University of Florida, Gainesville, Florida 32611,
United States
| | - Zhongliang Wang
- Department of Chemistry, University of Florida, Gainesville, Florida 32611,
United States
| | - Zhongwu Wang
- Cornell High
Energy Synchrotron
Source, Wilson Laboratory, Cornell University, Ithaca, New York 14853, United States
| | - Y. Charles Cao
- Department of Chemistry, University of Florida, Gainesville, Florida 32611,
United States
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11
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Choi JH, Fafarman AT, Oh SJ, Ko DK, Kim DK, Diroll BT, Muramoto S, Gillen JG, Murray CB, Kagan CR. Bandlike transport in strongly coupled and doped quantum dot solids: a route to high-performance thin-film electronics. NANO LETTERS 2012; 12:2631-8. [PMID: 22509936 DOI: 10.1021/nl301104z] [Citation(s) in RCA: 101] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
We report bandlike transport in solution-deposited, CdSe QD thin-films with room temperature field-effect mobilities for electrons of 27 cm(2)/(V s). A concomitant shift and broadening in the QD solid optical absorption compared to that of dispersed samples is consistent with electron delocalization and measured electron mobilities. Annealing indium contacts allows for thermal diffusion and doping of the QD thin-films, shifting the Fermi energy, filling traps, and providing access to the bands. Temperature-dependent measurements show bandlike transport to 220 K on a SiO(2) gate insulator that is extended to 140 K by reducing the interface trap density using an Al(2)O(3)/SiO(2) gate insulator. The use of compact ligands and doping provides a pathway to high performance, solution-deposited QD electronics and optoelectronics.
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Affiliation(s)
- Ji-Hyuk Choi
- Department of Materials Science and Engineering, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA
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12
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Shekhar S, Anjia L, Matsui H, Khondaker SI. Electrical transport properties of peptide nanotubes coated with gold nanoparticles via peptide-induced biomineralization. NANOTECHNOLOGY 2011; 22:095202. [PMID: 21270484 PMCID: PMC6345665 DOI: 10.1088/0957-4484/22/9/095202] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
We present temperature dependent electrical transport measurements of peptide nanotube devices coated with monodisperse arrays of gold nanoparticles (AuNP). As the temperature is lowered, the current-voltage (I-V) characteristics become increasingly nonlinear and below 20 K conduction only occurs above a threshold voltage V(T). The current follows the scaling behavior I ∝ [(V − V(T))/V(T)]α for V > V(T) with α ∼ 2.5 signifying two-dimensional (2D) charge transport. The temperature dependence of the resistance shows thermally activated behavior with an activation energy of 18.2 meV corresponding to the sequential tunneling of charges through 6 nm monodispersed AuNP arrays grown on a peptide surface.
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Affiliation(s)
- Shashank Shekhar
- Nanoscience Technology Center, University of Central Florida, Orlando, FL 32826, USA
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13
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Shibu ES, Cyriac J, Pradeep T, Chakrabarti J. Gold nanoparticle superlattices as functional solids for concomitant conductivity and SERS tuning. NANOSCALE 2011; 3:1066-1072. [PMID: 21161103 DOI: 10.1039/c0nr00670j] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Mercaptosuccinic acid protected gold nanoparticles (Au@MSA) self assemble to form superlattice (SL) crystals at the air-water interface. These have been used for gas adsorption. The current-voltage (I-V) characteristics of the SL film with embedded SL crystals, obtained by four probe measurements, show Ohmic conduction. The conductance observed was proportional to the polarizability of the adsorbed gases. The current through the SL decreases on adsorption of the gas along with decrease in the SERS intensity of a probe molecule from the crystals. We rationalise our observation of the linear dependence of the conductance on the polarizability of the adsorbed gas using a simple model calculation. Variation of the conductance may be useful in designing electrical switches operating at the nanometre length scales.
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Affiliation(s)
- Edakkattuparambil Sidharth Shibu
- DST Unit on Nanoscience (DST UNS), Department of Chemistry and Sophisticated Analytical Instrument Facility, Indian Institute of Technology, Madras, Chennai, 600 036, India
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14
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Lee B, Podsiadlo P, Rupich S, Talapin DV, Rajh T, Shevchenko EV. Comparison of structural behavior of nanocrystals in randomly packed films and long-range ordered superlattices by time-resolved small angle X-ray scattering. J Am Chem Soc 2010; 131:16386-8. [PMID: 19863066 DOI: 10.1021/ja906632b] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
We evaluated the difference between randomly packed NCs (disordered films), periodic films, and three-dimensional crystals in terms of their lattice structure and interparticle spacing using time-resolved small-angle X-ray scattering (SAXS) technique. The work was performed on nanocrystal solids formed by 7 nm PbS nanocrystals capped with oleic acid. We have found that interparticle spacing in faceted three-dimensional crystals is approximately 25% smaller as compared with three-dimensional films formed by solvent evaporation. We showed that interparticle spacing in faceted three-dimensional crystals is significantly smaller than the length of a fully extended molecule of oleic acid, and hence, full interdigitation of molecules from neighboring particle is doubtful. Also we demonstrated that postpreparative mild thermal treatment allows further manipulation of interparticle spacing.
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Affiliation(s)
- Byeongdu Lee
- Advanced Photon Source, Argonne National Laboratory, Argonne, Illinois 60439, USA
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15
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Talapin DV, Lee JS, Kovalenko MV, Shevchenko EV. Prospects of Colloidal Nanocrystals for Electronic and Optoelectronic Applications. Chem Rev 2009; 110:389-458. [PMID: 19958036 DOI: 10.1021/cr900137k] [Citation(s) in RCA: 2140] [Impact Index Per Article: 142.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Dmitri V. Talapin
- Department of Chemistry, The University of Chicago, Chicago, Illinois 60637, and Center for Nanoscale Materials, Argonne National Lab, Argonne, Illinois 60439
| | - Jong-Soo Lee
- Department of Chemistry, The University of Chicago, Chicago, Illinois 60637, and Center for Nanoscale Materials, Argonne National Lab, Argonne, Illinois 60439
| | - Maksym V. Kovalenko
- Department of Chemistry, The University of Chicago, Chicago, Illinois 60637, and Center for Nanoscale Materials, Argonne National Lab, Argonne, Illinois 60439
| | - Elena V. Shevchenko
- Department of Chemistry, The University of Chicago, Chicago, Illinois 60637, and Center for Nanoscale Materials, Argonne National Lab, Argonne, Illinois 60439
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16
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Aleksandrovic V, Greshnykh D, Randjelovic I, Frömsdorf A, Kornowski A, Roth SV, Klinke C, Weller H. Preparation and electrical properties of cobalt-platinum nanoparticle monolayers deposited by the Langmuir-Blodgett technique. ACS NANO 2008; 2:1123-1130. [PMID: 19206329 DOI: 10.1021/nn800147a] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
The Langmuir-Blodgett technique was utilized and optimized to produce closed monolayers of cobalt-platinum nanoparticles over vast areas. It is shown that sample preparation, "dipping angle", and subphase type have a strong impact on the quality of the produced films. The amount of ligands on the nanoparticle's surface must be minimized, the dipping angle must be around 105 degrees , while the glycol subphase is necessary to obtain nanoparticle monolayers. The achieved films were characterized by scanning electron microscopy (SEM) and grazing incidence X-ray scattering (GISAXS). The electrical properties of the deposited films were studied by direct current (DC) measurements, showing a discrepancy to the variable range hopping transport from the granular metal model and favoring the simple thermal activated charge transport. SEM, GISAXS, as well as DC measurements confirm a narrow size distribution and high ordering of the deposited films.
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Affiliation(s)
- Vesna Aleksandrovic
- Institute of Physical Chemistry, University of Hamburg, Grindelallee 117, 20146, Germany
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17
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18
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Autobiographical Sketch. Mol Phys 2008. [DOI: 10.1080/00268970701794332] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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19
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Tang J, Rong H, Li X, Zou B, Li J. The Photoelectric Response of Gold-Nanoparticle Monolayers. Chemphyschem 2007; 8:1611-4. [PMID: 17603817 DOI: 10.1002/cphc.200700106] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Junke Tang
- Key Laboratory of Colloid and Interface Science, Center of Molecular Science, Institute of Chemistry, Chinese Academy of Science, Zhongguancun, Beijing100080, China
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20
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Liljeroth P, Vanmaekelbergh D, Ruiz V, Kontturi K, Jiang H, Kauppinen E, Quinn BM. Electron Transport in Two-Dimensional Arrays of Gold Nanocrystals Investigated by Scanning Electrochemical Microscopy. J Am Chem Soc 2004; 126:7126-32. [PMID: 15174884 DOI: 10.1021/ja0493188] [Citation(s) in RCA: 58] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
This article reports the use of the scanning electrochemical microscope (SECM) to investigate the electronic properties of Langmuir monolayers of alkane thiol protected gold nanocrystals (NCs). A substantial increase in monolayer conductivity upon mechanical compression of the Au NC monolayer is reported for the first time. This may be the room temperature signature of the insulator to metal transition previously reported for comparable silver NC monolayers. Factors influencing the conductivity of the monolayer NC array are discussed.
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Affiliation(s)
- Peter Liljeroth
- Condensed Matter and Interfaces, Debye Institute, University of Utrecht, P.O. Box 80000, 3508 TA Utrecht, The Netherlands
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21
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Banerjee IA, Yu L, Matsui H. Cu nanocrystal growth on peptide nanotubes by biomineralization: size control of Cu nanocrystals by tuning peptide conformation. Proc Natl Acad Sci U S A 2003; 100:14678-82. [PMID: 14645717 PMCID: PMC299758 DOI: 10.1073/pnas.2433456100] [Citation(s) in RCA: 225] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2003] [Indexed: 11/18/2022] Open
Abstract
With recent interest in seeking new biologically inspired device-fabrication methods in nanotechnology, a new biological approach was examined to fabricate Cu nanotubes by using sequenced histidine-rich peptide nanotubes as templates. The sequenced histidine-rich peptide molecules were assembled as nanotubes, and the biological recognition of the specific sequence toward Cu lead to efficient Cu coating on the nanotubes. Cu nanocrystals were uniformly coated on the histidine-incorporated nanotubes with high packing density. In addition, the diameter of Cu nanocrystal was controlled between 10 and 30 nm on the nanotube by controlling the conformation of histidine-rich peptide by means of pH changes. Those nanotubes showed significant change in electronic structure by varying the nanocrystal diameter; therefore, this system may be developed to a conductivity-tunable building block for microelectronics and biological sensors. This simple biomineralization method can be applied to fabricate various metallic and semiconductor nanotubes with peptides whose sequences are known to mineralize specific ions.
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Affiliation(s)
- Ipsita A Banerjee
- Department of Chemistry and Biochemistry, Hunter College and the Graduate Center, The City University of New York, 695 Park Avenue, New York, NY 10021, USA
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22
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Remacle F, Beverly KC, Heath JR, Levine RD. Gating the Conductivity of Arrays of Metallic Quantum Dots. J Phys Chem B 2003. [DOI: 10.1021/jp036357h] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- F. Remacle
- The Fritz Haber Research Center for Molecular Dynamics, The Hebrew University of Jerusalem, Jerusalem 91904, Israel, Département de Chimie, B6c, Université de Liège, B4000 Liège, Belgium, Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, California 90095, The Division of Chemistry and Chemical Engineering, California Institute of Technology, MC 127-72, Pasadena, California 91125
| | - K. C. Beverly
- The Fritz Haber Research Center for Molecular Dynamics, The Hebrew University of Jerusalem, Jerusalem 91904, Israel, Département de Chimie, B6c, Université de Liège, B4000 Liège, Belgium, Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, California 90095, The Division of Chemistry and Chemical Engineering, California Institute of Technology, MC 127-72, Pasadena, California 91125
| | - J. R. Heath
- The Fritz Haber Research Center for Molecular Dynamics, The Hebrew University of Jerusalem, Jerusalem 91904, Israel, Département de Chimie, B6c, Université de Liège, B4000 Liège, Belgium, Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, California 90095, The Division of Chemistry and Chemical Engineering, California Institute of Technology, MC 127-72, Pasadena, California 91125
| | - R. D. Levine
- The Fritz Haber Research Center for Molecular Dynamics, The Hebrew University of Jerusalem, Jerusalem 91904, Israel, Département de Chimie, B6c, Université de Liège, B4000 Liège, Belgium, Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, California 90095, The Division of Chemistry and Chemical Engineering, California Institute of Technology, MC 127-72, Pasadena, California 91125
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23
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Sarikaya M, Tamerler C, Jen AKY, Schulten K, Baneyx F. Molecular biomimetics: nanotechnology through biology. NATURE MATERIALS 2003; 2:577-85. [PMID: 12951599 DOI: 10.1038/nmat964] [Citation(s) in RCA: 993] [Impact Index Per Article: 47.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Proteins, through their unique and specific interactions with other macromolecules and inorganics, control structures and functions of all biological hard and soft tissues in organisms. Molecular biomimetics is an emerging field in which hybrid technologies are developed by using the tools of molecular biology and nanotechnology. Taking lessons from biology, polypeptides can now be genetically engineered to specifically bind to selected inorganic compounds for applications in nano- and biotechnology. This review discusses combinatorial biological protocols, that is, bacterial cell surface and phage-display technologies, in the selection of short sequences that have affinity to (noble) metals, semiconducting oxides and other technological compounds. These genetically engineered proteins for inorganics (GEPIs) can be used in the assembly of functional nanostructures. Based on the three fundamental principles of molecular recognition, self-assembly and DNA manipulation, we highlight successful uses of GEPI in nanotechnology.
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Affiliation(s)
- Mehmet Sarikaya
- Materials Science & Engineering, University of Washington, Seattle, Washington 98195, USA.
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Remacle F. Surface potential measurements as a probe of the charge localization in assemblies of metallic quantum dots: A computational study. J Chem Phys 2003. [DOI: 10.1063/1.1594176] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Affiliation(s)
- Luis M. Liz-Marzán
- Departamento de Química Física, Universidade de Vigo, 36200, Vigo, Spain, and Chemistry School, University of Melbourne, Parkville, VIC, 3010, Australia
| | - Paul Mulvaney
- Departamento de Química Física, Universidade de Vigo, 36200, Vigo, Spain, and Chemistry School, University of Melbourne, Parkville, VIC, 3010, Australia
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Djalali R, Chen YF, Matsui H. Au nanocrystal growth on nanotubes controlled by conformations and charges of sequenced peptide templates. J Am Chem Soc 2003; 125:5873-9. [PMID: 12733928 DOI: 10.1021/ja0299598] [Citation(s) in RCA: 160] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A new biological approach to fabricate Au nanowires was examined by using sequenced peptide nanotubes as templates. The sequenced histidine-rich peptide molecules were assembled on nanotubes, and the biological recognition of the sequenced peptide selectively trapped Au ions for the nucleation of Au nanocrystals. After Au ions were reduced, highly monodisperse Au nanocrystals were grown on nanotubes. The conformations and the charge distributions of the histidine-rich peptide, determined by pH and Au ion concentration in the growth solution, control the size and the packing density of Au nanocrystals. The diameter of Au nanocrystal was limited by the spacing between the neighboring histidine-rich peptides on nanotubes. A series of TEM images of Au nanocrystals on nanotubes in the shorter Au ion incubation time periods reveal that Au nanocrystals grow inside the nanotubes first and then cover the outer surfaces of nanotubes. Therefore, multiple materials will be coated inside and outside the nanotubes respectively by controlling doping ion concentrations and their deposition sequences. It should be noted that metallic nanocrystals in diameter around 6 nm are in the size domain to observe a significant conductivity change by changing the packing density, and therefore this system may be developed into a conductivity-tunable building block.
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Affiliation(s)
- Ramin Djalali
- Department of Chemistry and Biochemistry at Hunter College and the Graduate Center, The City University of New York, New York, New York 10021, USA
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Remacle F, Levine RD. Current-voltage-temperature characteristics for 2D arrays of metallic quantum dots. Isr J Chem 2002. [DOI: 10.1560/n79e-63lc-uk4y-mqq6] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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