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Singh M, Scotognella F, Paternò GM. Degenerately doped metal oxide nanocrystals for infrared light harvesting: insight into their plasmonic properties and future perspectives. MATERIALS ADVANCES 2024; 5:6796-6812. [PMID: 39130726 PMCID: PMC11307255 DOI: 10.1039/d4ma00426d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2024] [Accepted: 07/30/2024] [Indexed: 08/13/2024]
Abstract
The tuneability of the localized surface plasmon resonance (LSPR) of degenerately doped metal oxide (MOX) nanocrystals (NCs) over a wide range of the infrared (IR) region by controlling NC size and doping content offers a unique opportunity to develop a future generation of optoelectronic and photonic devices like IR photodetectors and sensors. The central aim of this review article is to highlight the distinctive and remarkable plasmonic properties of degenerately or heavily doped MOX nanocrystals by reviewing the comprehensive literature reported so far. In particular, the literature of each MOX NC, i.e. ZnO, CdO, In2O3, and WO3 doped with different dopants, is discussed separately. In addition to discussion of the most commonly used colloidal synthesis approaches, the ultrafast dynamics of charge carriers in NCs and the extraction of LSPR-assisted hot-carriers are also discussed in detail. Finally, future prospective applications of MOX NCs in IR photodetectors and photovoltaic (PV) self-powered chemical sensors are also presented.
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Affiliation(s)
- Mandeep Singh
- Physics Department, Politecnico di Milano Piazza L. da Vinci 32 20133 Milano Italy
| | - Francesco Scotognella
- Department of Applied Science and Technology, Politecnico di Torino Corso Duca degli Abruzzi 24 Torino 10129 Italy
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2
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van Embden J, Gross S, Kittilstved KR, Della Gaspera E. Colloidal Approaches to Zinc Oxide Nanocrystals. Chem Rev 2023; 123:271-326. [PMID: 36563316 DOI: 10.1021/acs.chemrev.2c00456] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Zinc oxide is an extensively studied semiconductor with a wide band gap in the near-UV. Its many interesting properties have found use in optics, electronics, catalysis, sensing, as well as biomedicine and microbiology. In the nanoscale regime the functional properties of ZnO can be precisely tuned by manipulating its size, shape, chemical composition (doping), and surface states. In this review, we focus on the colloidal synthesis of ZnO nanocrystals (NCs) and provide a critical analysis of the synthetic methods currently available for preparing ZnO colloids. First, we outline key thermodynamic considerations for the nucleation and growth of colloidal nanoparticles, including an analysis of different reaction methodologies and of the role of dopant ions on nanoparticle formation. We then comprehensively review and discuss the literature on ZnO NC systems, including reactions in polar solvents that traditionally occur at low temperatures upon addition of a base, and high temperature reactions in organic, nonpolar solvents. A specific section is dedicated to doped NCs, highlighting both synthetic aspects and structure-property relationships. The versatility of these methods to achieve morphological and compositional control in ZnO is explicated. We then showcase some of the key applications of ZnO NCs, both as suspended colloids and as deposited coatings on supporting substrates. Finally, a critical analysis of the current state of the art for ZnO colloidal NCs is presented along with existing challenges and future directions for the field.
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Affiliation(s)
- Joel van Embden
- School of Science, RMIT University, MelbourneVictoria, 3001, Australia
| | - Silvia Gross
- Dipartimento di Scienze Chimiche, Università degli Studi di Padova, 35131Padova, Italy.,Karlsruher Institut für Technologie (KIT), Institut für Technische Chemie und Polymerchemie (ITCP), Engesserstrasse 20, 76131Karlsruhe, Germany
| | - Kevin R Kittilstved
- Department of Chemistry, University of Massachusetts Amherst, Amherst, Massachusetts01003, United States
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3
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Yoo BI, Lee N, Lamichhane B, Bang J, Song HY, Park BC, Lee KH, Kim SG, Kim SW. Identifying the Correlation between Structural Parameters and Anisotropic Magnetic Properties in IMnV Semiconductors: A Possible Room-Temperature Magnetism. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2022; 34:e2200074. [PMID: 35765199 DOI: 10.1002/adma.202200074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Revised: 06/22/2022] [Indexed: 06/15/2023]
Abstract
Layer-structured materials are of central importance in a wide range of research fields owing to their unique properties originating from their two dimensionality and anisotropy. Herein, quasi-2D layer-structured IMnV (I: alkali metals and V: pnictogen elements) compounds are investigated, which are potential antiferromagnetic (AFM) semiconductors. Single crystals of IMnV compounds are successfully grown using the self-flux method and their electronic and magnetic properties are analyzed in correlation with structural parameters. Combined with theoretical calculations, the structural analysis indicates that the variation in the bonding angle between VMnV is responsible for the change in the orbital hybridization of Mn and V, predominantly affecting their anisotropic semiconducting properties. Anisotropy in the magnetic properties is also found, where AFM ordering is expected to occur in the in-plane direction, as supported by spin-structure calculations. Furthermore, a possible ferromagnetic (FM) transition is discussed in relation to the vacancy defects. This study provides a candidate material group for AFM and FM spintronics and a basis for exploring magnetic semiconductors in quasi-2D layer-structured systems.
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Affiliation(s)
- Byung Il Yoo
- Department of Energy Science, Sungkyunkwan University, Suwon, 16419, Republic of Korea
- Samsung Electro-mechanics Co., Ltd., Suwon, 16674, Republic of Korea
| | - Nahyun Lee
- Department of Energy Science, Sungkyunkwan University, Suwon, 16419, Republic of Korea
| | - Bipin Lamichhane
- Department of Physics & Astronomy and Center for Computational Sciences, Mississippi State University, Mississippi States, MS, 39792, USA
| | - Joonho Bang
- Department of Energy Science, Sungkyunkwan University, Suwon, 16419, Republic of Korea
| | - Hyun Yong Song
- Department of Energy Science, Sungkyunkwan University, Suwon, 16419, Republic of Korea
| | - Byung Cheol Park
- Department of Energy Science, Sungkyunkwan University, Suwon, 16419, Republic of Korea
| | - Kyu Hyoung Lee
- Department of Materials Science and Engineering, Yonsei University, Seoul, 03722, Republic of Korea
| | - Seong-Gon Kim
- Department of Physics & Astronomy and Center for Computational Sciences, Mississippi State University, Mississippi States, MS, 39792, USA
| | - Sung Wng Kim
- Department of Energy Science, Sungkyunkwan University, Suwon, 16419, Republic of Korea
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Mbrouk OA, Fawzy M, El‐Shafey HM, Saif M, Hafez H, Abdel Mottaleb MSA. Green Synthesized Plasmonic Pd‐ZnO Nanomaterials for Visible Light‐induced Photobiogas Production from Industrial Wastewater. Appl Organomet Chem 2022. [DOI: 10.1002/aoc.6807] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Omar A. Mbrouk
- Nano‐Photochemistry and its Environmental Applications Laboratory Environmental Studies and Research Institute (ESRI), University of Sadat City (USC) Sadat City Menofia Egypt
| | - M. Fawzy
- Nano‐Photochemistry and its Environmental Applications Laboratory Environmental Studies and Research Institute (ESRI), University of Sadat City (USC) Sadat City Menofia Egypt
| | - H. M. El‐Shafey
- Nano‐Photochemistry and its Environmental Applications Laboratory Environmental Studies and Research Institute (ESRI), University of Sadat City (USC) Sadat City Menofia Egypt
| | - M. Saif
- Chemistry Department, Faculty of Education Ain Shams University Cairo Egypt
| | - H. Hafez
- Nano‐Photochemistry and its Environmental Applications Laboratory Environmental Studies and Research Institute (ESRI), University of Sadat City (USC) Sadat City Menofia Egypt
| | - M. S. A. Abdel Mottaleb
- Nano‐Photochemistry and Solar Chemistry Laboratories, Department of Chemistry, Faculty of Science Ain Shams University Cairo Egypt
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Comparative Studies of Undoped/Al-Doped/In-Doped ZnO Transparent Conducting Oxide Thin Films in Optoelectronic Applications. CHEMOSENSORS 2022. [DOI: 10.3390/chemosensors10050162] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
In this paper, undoped, Al-, and In-doped zinc oxide thin films were deposited. Film growth was performed using the sol–gel technique. The method included (a) preparing homogeneous and stable solutions of zinc acetate 2-hydrate, (b) mixing them with aluminum nitrate and indium acetate in 2-methoxyethanol and 2-aminoethanol solutions with various concentrations, and (c) spin coating them onto transparent glass substrates. After thermal annealing, the films showed a high transparency (80–90%) and good stability. Using typical diagnostic tools, the structural, morphological, optical, and electrical film properties were investigated and linked to the dopant type, and concentrations in view of optoelectronics were investigated.
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Zhang W, Lei J, Dai Y, Zhang X, Kang L, Peng B, Hu F. Switching-behavior improvement in HfO 2/ZnO bilayer memory devices by tailoring of interfacial and microstructural characteristics. NANOTECHNOLOGY 2022; 33:255703. [PMID: 35294938 DOI: 10.1088/1361-6528/ac5e70] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/27/2021] [Accepted: 03/16/2022] [Indexed: 06/14/2023]
Abstract
We investigated the effect of top contact interface and microstructural characteristics of the insulating layers on resistive switching behaviors by fabricating and characterizing the HfO2/ZnO bilayer heterostructures. Different thickness of ZnO underlying layer and different deposition temperatures of the upper HfO2layer were designed to analyze the intrinsic contribution of the crystalline microstructure of the insulating bilayer. Pt and Ti top electrodes were used to demonstrate the extrinsic contribution of the interface configuration. It was observed that all devices show bipolar RS characteristics. Unlike the device composed of Pt/HfO2/ZnO/Pt that exhibit an abrupt switching, a gradually continuous switching in the reset process was identified in the device composed of Ti/HfO2/ZnO/Pt. Interfacial charge migration process/characteristic plays a key role in the RS process as well as its conduction mechanism. The RS performance of the former is significantly better than that of the latter, including much lower reset voltage, two orders of magnitude larger OFF/ON ratio and HRS resistance. In addition, as compared to the intrinsic contribution arising from the microstructure of the HfO2/ZnO bilayer to the RS performances and current transport mechanism, the extrinsic effect contributed from the electrode characteristics (and its interface) is dominant.
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Affiliation(s)
- Wei Zhang
- College of Electronic and Optical Engineering, Nanjing University of Posts and Telecommunications, Nanjing 210023, People's Republic of China
| | - Jianzhang Lei
- College of Electronic and Optical Engineering, Nanjing University of Posts and Telecommunications, Nanjing 210023, People's Republic of China
| | - Yixian Dai
- College of Electronic and Optical Engineering, Nanjing University of Posts and Telecommunications, Nanjing 210023, People's Republic of China
| | - Xuehua Zhang
- College of Electronic and Optical Engineering, Nanjing University of Posts and Telecommunications, Nanjing 210023, People's Republic of China
| | - Limin Kang
- School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, People's Republic of China
| | - Bowen Peng
- College of Electronic and Optical Engineering, Nanjing University of Posts and Telecommunications, Nanjing 210023, People's Republic of China
| | - Fangren Hu
- College of Electronic and Optical Engineering, Nanjing University of Posts and Telecommunications, Nanjing 210023, People's Republic of China
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7
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Ming SK, Taylor RA, McNaughter PD, Lewis DJ, O’Brien P. Tunable structural and optical properties of Ag xCu yInS 2 colloidal quantum dots. NEW J CHEM 2022. [DOI: 10.1039/d2nj03169h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Herein is discussed tunable absorption and emission properties of AgxCuyInS2 quantum dots involving wurtzite to chalcopyrite phase transformation dependent on Ag+ dopant content.
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Affiliation(s)
- Shanna-Kay Ming
- Department of Chemistry, The University of the West Indies, St. Augustine, Trinidad and Tobago
| | - Richard A. Taylor
- Department of Chemistry, The University of the West Indies, St. Augustine, Trinidad and Tobago
| | - Paul D. McNaughter
- Department of Chemistry, University of Manchester, Manchester M13 9PL, UK
| | - David J. Lewis
- Department of Materials, University of Manchester, Manchester M13 9PL, UK
| | - Paul O’Brien
- Department of Chemistry, University of Manchester, Manchester M13 9PL, UK
- Department of Materials, University of Manchester, Manchester M13 9PL, UK
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Wang Y, Zhang M, Ma H, Su H, Li A, Ruan W, Zhao B. Surface Plasmon Resonance from Gallium-Doped Zinc Oxide Nanoparticles and Their Electromagnetic Enhancement Contribution to Surface-Enhanced Raman Scattering. ACS APPLIED MATERIALS & INTERFACES 2021; 13:35038-35045. [PMID: 34279091 DOI: 10.1021/acsami.1c05804] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
In recent years, semiconductor-based surface-enhanced Raman scattering (SERS) substrates have received considerable attention and led to a forefront in the SERS field. However, the lack of electromagnetic (EM) enhancement contributions highly precludes the development of semiconductive-substrate-based SERS. In this study, Ga-doped ZnO nanoparticles (NPs) were fabricated and employed as novel SERS substrates based on the EM enhancement contribution of surface plasmon resonance (SPR). The obtained Ga-doped ZnO NPs exhibited obvious SPR absorptions in the visible and near- and mid-infrared regions. SPR absorption can be readily tuned by changing the doping ratios of Ga3+ ions. The SERS spectra of Ga-doped ZnO/4-mercaptopyridine (MPy) were investigated at different excitation wavelengths of 488, 532, 633, and 785 nm. The spectral enhancement of Ga-doped ZnO substrates depended on the doping ratios, excitation wavelengths, and nearby SPR absorption. Ga-doped ZnO NPs with the highest free charge carrier density and the doping ratio of 5% showed the strongest SERS spectra. For the fixed doping ratio of 5%, the better is the match between excitation wavelengths and SPR absorption, the higher is the SERS spectral enhancement. This study showed the feasibility of EM contributions to SERS by using semiconductive substrates and can contribute to the development of the semiconductor-based EM mechanism.
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Affiliation(s)
- Yanan Wang
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun 130012, China
| | - Meng Zhang
- State Key Laboratory of Supramolecular Structure and Materials, Institute of Theoretical Chemistry, Jilin University, Changchun 130012, China
| | - Hao Ma
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun 130012, China
| | - Hongyang Su
- WITec Scientific Technology Co., Ltd., Beijing 100004, China
| | - Aisen Li
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun 130012, China
| | - Weidong Ruan
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun 130012, China
- State Key Laboratory of Supramolecular Structure and Materials, Institute of Theoretical Chemistry, Jilin University, Changchun 130012, China
| | - Bing Zhao
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun 130012, China
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Sohn HY, Murali A. Plasma Synthesis of Advanced Metal Oxide Nanoparticles and Their Applications as Transparent Conducting Oxide Thin Films. Molecules 2021; 26:molecules26051456. [PMID: 33800111 PMCID: PMC7962204 DOI: 10.3390/molecules26051456] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Revised: 02/26/2021] [Accepted: 03/03/2021] [Indexed: 11/16/2022] Open
Abstract
This article reviews and summarizes work recently performed in this laboratory on the synthesis of advanced transparent conducting oxide nanopowders by the use of plasma. The nanopowders thus synthesized include indium tin oxide (ITO), zinc oxide (ZnO) and tin-doped zinc oxide (TZO), aluminum-doped zinc oxide (AZO), and indium-doped zinc oxide (IZO). These oxides have excellent transparent conducting properties, among other useful characteristics. ZnO and TZO also has photocatalytic properties. The synthesis of these materials started with the selection of the suitable precursors, which were injected into a non-transferred thermal plasma and vaporized followed by vapor-phase reactions to form nanosized oxide particles. The products were analyzed by the use of various advanced instrumental analysis techniques, and their useful properties were tested by different appropriate methods. The thermal plasma process showed a considerable potential as an efficient technique for synthesizing oxide nanopowders. This process is also suitable for large scale production of nano-sized powders owing to the availability of high temperatures for volatilizing reactants rapidly, followed by vapor phase reactions and rapid quenching to yield nano-sized powder.
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10
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Ga-Doped ZnO Nanostructured Powder for Cool-Nanopigment in Environment Applications. MATERIALS 2020; 13:ma13225152. [PMID: 33207641 PMCID: PMC7696702 DOI: 10.3390/ma13225152] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/14/2020] [Revised: 10/04/2020] [Accepted: 10/09/2020] [Indexed: 11/16/2022]
Abstract
Gallium (Ga) doped zinc oxide (ZnO) nanocrystals were successfully synthesized via a γ-radiation-assisted polymer-pyrolysis route. Ga doped ZnO samples with Ga and ZnO precursor salts with molar ratios of 0%, 3%, 5%, and 10% were produced. A γ-radiation dosage of 1.5 kGy was used for polymerization initiation during the sample preparation. The properties of the obtained nanocrystal samples were characterized using X-ray diffraction (XRD), Fourier transform infrared (FTIR), UV-visible absorption, NIR-VIS-UV diffused reflectance, and high-resolution transmission electron microscopy (HR-TEM) characterization techniques. XRD results revealed the formation of ZnO nanocrystals with wurtzite structure for both Ga-doped and undoped ZnO samples. Noticeable increasing in the line broadening of the XRD peaks as well as pronounced decreasing of crystallite size were observed with the increasing Ga ratio in the samples. Optical peaks around Ga:ZnO samples showed a blueshift in the optical absorption peaks with increasing Ga content. These results are in good agreement with the dependency of crystallites size as well as grain size on Ga ratio obtained from XRD and TEM images, which make them fit well for the powder cool-pigment applications. The doped samples showed high values of NIR reflectance (RNIR*) with percentage varied from 84.25% to 89.05% that enabled them to qualify for cool-nanopigment applications. Furthermore, such doped samples registered low values of visible reflectance (RVIS*) that enabled to reduce the glare from the reflected visible sunlight.
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Pradhan MK, Rao TL, Goutam UK, Dash S. Probing structural and photophysical features of Eu 3+ activated NaCdPO 4 orthophosphate phosphor. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2020; 240:118593. [PMID: 32559727 DOI: 10.1016/j.saa.2020.118593] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2020] [Revised: 06/03/2020] [Accepted: 06/06/2020] [Indexed: 06/11/2023]
Abstract
A series of Eu3+ doped NaCd1-xPO4: x Eu3+ (0 ≤ x ≤ 0.1) phosphors were synthesized and a systematic investigation of structural, morphological, optical and photophysical properties were carried out. Structural characteristics were analyzed both qualitatively as well as quantitatively to establish the phase purity, supported by FTIR and Raman spectroscopy methods. The valance state of the dopant, as well as surface elemental compositions were investigated by XPS technique. The optical characteristics were analyzed by employing UV-Visible DRS, which shows that the host bandgap is getting broadened upon doping as a result of the Burstein-Moss (BM) effect. Eu3+ doped phosphor exhibits emissions rich in red (617 nm) under suitable excitations at 393 nm while the optimal doping concentration was found to be around x = 0.06. The effective non-radiative transfer of energy from host to activator is governed by the dominant dipole-dipole transitions. The hypersensitive transition line 5D0 → 7F2 is observed owing to the induced electric dipole (ED) transition of Eu3+ centered at 617 nm. Local site symmetry has been analyzed to ascertain the environment around Eu3+ and presence of any non-equivalent cation sites. The concentration quenching effect of phosphors was explained on the basis of Dexter's theory and charge compensation mechanism. The Commission Internationale de l'Eclairage (CIE 1931) chromaticity coordinates for the prepared phosphors were estimated and found to lie in the red region of color space. The photoluminescence decay time was measured for the most intense emission line 5D0 → 7F2 at 617 nm under 393 nm excitation and the results indicate that Eu3+ activated NaCdPO4 can be a suitable red phosphor for white LED using UV-LED chip owing to it's near UV-excitation characteristics.
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Affiliation(s)
- M K Pradhan
- Department of Physics and Astronomy, National Institute of Technology Rourkela, Rourkela, -769008, Odisha, India
| | - T Lakshmana Rao
- Department of Physics and Astronomy, National Institute of Technology Rourkela, Rourkela, -769008, Odisha, India
| | - U K Goutam
- Indus 2 Synchrotron Facility, Raja Ramanna Centre for Advanced Technology (RRCAT), Indore 452013, Madhya Pradesh, India
| | - S Dash
- Department of Physics and Astronomy, National Institute of Technology Rourkela, Rourkela, -769008, Odisha, India.
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12
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Ni Z, Bao S, Gong XQ. A DFT study of the CO adsorption and oxidation at ZnO surfaces and its implication for CO detection. CHINESE CHEM LETT 2020. [DOI: 10.1016/j.cclet.2019.10.027] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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13
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Zukuls A, Eglītis R, Käämbre T, Ignatans R, Šmits K, Rubenis K, Začs D, Šutka A. Permanent photodoping of plasmonic gallium-ZnO nanocrystals. NANOSCALE 2020; 12:6624-6629. [PMID: 32163079 DOI: 10.1039/d0nr01005g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Donor dopants in oxide semiconductors are compensated not only by valuable electrons but also by other point defects, leading to a decrease in electric conductivity and infrared absorption. We demonstrate that the electron compensation mechanism in Ga doped ZnO nanocrystals can be promoted by photodoping. Unexpectedly, the electrons from photodoping are stable in the open air for months.
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Affiliation(s)
- Anzelms Zukuls
- Research Laboratory of Functional Materials Technologies, Faculty of Materials Science and Applied Chemistry, Riga Technical University, Paula Valdena 3/7, LV-1048 Riga, Latvia.
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Antony A, P P, Kityk IV, Ozga K, Jedryka J, Myronchuk G, Kulkarni SD, Sanjeev G, Petwal VC, Verma VP, Dwivedi J. Defect engineering, microstructural examination and improvement of ultrafast third harmonic generation in GaZnO nanostructures: a study of e-beam irradiation. Phys Chem Chem Phys 2020; 22:4252-4265. [PMID: 32044896 DOI: 10.1039/c9cp06323d] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Electron beam induced effects on defect engineering and structural, morphological and optical properties of Ga doped ZnO (GaZnO) nanostructures for improved ultrafast nonlinear optical properties are presented. A microstructural analysis was carried out based on the Scherrer, Williamson-Hall, and size-strain models. All three models reveal a peak broadening effect upon electron beam irradiation (EBI) and the crystallite size of the films shows a decrease of 30% compared to unirradiated nanostructures. The decrease in intensity, variation in the peak position and broadening of the Raman E2H mode confirm that the EBI treatment introduces disorder into the nanostructures. The interband gap emissions observed in photoluminescence spectra are primarily due to defect-related emissions originating from intrinsic defects such as Zni, Oi, VZn, VO, VZn+, VO+ and OZn. The O1s core-level spectra show that the peak related to oxygen vacancy defects is suppressed upon EBI. Surface morphology studies reveal that the nucleation barriers of GaZnO nanostructures are reduced upon irradiation treatment resulting in a coalescence mechanism. Third harmonic generation studies show that higher electron-beam doses lead to the occurrence of enhanced THG signals due to a drastic change in the occupation of localized defect levels. Thermally induced nonlinear optical studies depict an improved χ(3) of 1.71 × 10-3 esu upon irradiation due to enhanced FCA induced TPA mechanism and non-radiative transitions which indicates the credibility of the grown films in photonic devices.
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Affiliation(s)
- Albin Antony
- Department of Physics, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal, Karnataka 576104, India.
| | - Poornesh P
- Department of Physics, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal, Karnataka 576104, India.
| | - I V Kityk
- Chair of Automatic, Electrotechnical and Optoelectronics, Faculty of Electrical Engineering, Czestochowa University of Technology, Armii Krajowej 17, PL-42-201 Czestochowa, Poland
| | - K Ozga
- Chair of Automatic, Electrotechnical and Optoelectronics, Faculty of Electrical Engineering, Czestochowa University of Technology, Armii Krajowej 17, PL-42-201 Czestochowa, Poland
| | - J Jedryka
- Chair of Automatic, Electrotechnical and Optoelectronics, Faculty of Electrical Engineering, Czestochowa University of Technology, Armii Krajowej 17, PL-42-201 Czestochowa, Poland
| | - G Myronchuk
- Solid State Physics Department, Eastern European University, Voli 6, Luck, Ukraine
| | - Suresh D Kulkarni
- Department of Atomic and Molecular Physics, Manipal Academy of Higher Education, Manipal, Karnataka 576104, India
| | - Ganesh Sanjeev
- Department of Physics, Mangalore University, Mangalore, Karnataka 574199, India
| | - Vikash Chandra Petwal
- Industrial Accelerator Section, PSIAD, Raja Ramanna Centre for Advanced Technology, Indore, 452012, M.P., India
| | - Vijay Pal Verma
- Industrial Accelerator Section, PSIAD, Raja Ramanna Centre for Advanced Technology, Indore, 452012, M.P., India
| | - Jishnu Dwivedi
- Industrial Accelerator Section, PSIAD, Raja Ramanna Centre for Advanced Technology, Indore, 452012, M.P., India
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15
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Singh P, Kumar R, Singh RK. Progress on Transition Metal-Doped ZnO Nanoparticles and Its Application. Ind Eng Chem Res 2019. [DOI: 10.1021/acs.iecr.9b01561] [Citation(s) in RCA: 80] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Pushpendra Singh
- Department of Physics, Dr. Harisingh Gour Central University, Sagar, M. P. 470003, India
| | - Ranveer Kumar
- Department of Physics, Dr. Harisingh Gour Central University, Sagar, M. P. 470003, India
| | - Rajan Kumar Singh
- Department of Physics, Dr. Harisingh Gour Central University, Sagar, M. P. 470003, India
- Department of Chemical Engineering, National Taiwan University, Taipei, Taiwan, ROC
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16
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Saha M, Ghosh S, Paul S, Dalal B, De SK. Nb‐Dopant‐Induced Tuning of Optical and Electrical Property of Anatase TiO
2
Nanocrystals. ChemistrySelect 2018. [DOI: 10.1002/slct.201800434] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Manas Saha
- Department of Materials ScienceIndian Association for the Cultivation of Science 2 A & 2B Raja S C Mullick Road, Jadavpur Kolkata – 700032 INDIA
| | - Sirshendu Ghosh
- Department of Materials ScienceIndian Association for the Cultivation of Science 2 A & 2B Raja S C Mullick Road, Jadavpur Kolkata – 700032 INDIA
| | - Sumana Paul
- Department of Materials ScienceIndian Association for the Cultivation of Science 2 A & 2B Raja S C Mullick Road, Jadavpur Kolkata – 700032 INDIA
| | - Biswajit Dalal
- Department of Materials ScienceIndian Association for the Cultivation of Science 2 A & 2B Raja S C Mullick Road, Jadavpur Kolkata – 700032 INDIA
| | - Subodh K. De
- Department of Materials ScienceIndian Association for the Cultivation of Science 2 A & 2B Raja S C Mullick Road, Jadavpur Kolkata – 700032 INDIA
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17
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Charge-Transfer Effect of GZO Film on Photochemical Water Splitting of Transparent ZnO@GZO Films by RF Magnetron Sputtering. Top Catal 2018. [DOI: 10.1007/s11244-018-0916-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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18
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Synthesis, characterization and optical studies of gallium activated titania nanoparticles. ACTA ACUST UNITED AC 2017. [DOI: 10.1016/j.nanoso.2017.05.010] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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19
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Yibi Y, Chen J, Xue J, Song J, Zeng H. Enhancement of adjustable localized surface plasmon resonance in ZnO nanocrystals via a dual doping approach. Sci Bull (Beijing) 2017; 62:693-699. [PMID: 36659440 DOI: 10.1016/j.scib.2017.04.014] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2017] [Revised: 03/07/2017] [Accepted: 03/31/2017] [Indexed: 01/21/2023]
Abstract
Recently, the localized surface plasmon resonance (LSPR) concept was expanded from noble metals to doped semiconductor nanocrystals (NCs). However, the strengthening of the intrinsically very weak LSPR in NCs remains a great challenge for its applications in optics, electronics and optoelectronics fields. In this work, we report on the remarkable strengthening and controllability of LSPR in ZnO through a dual-doping strategy. First, high quality In-doped ZnO (IZO) NCs with intense LSPR were synthesized by a simple single-pot method. Importantly, the LSPR can be tuned by simply adjusting the concentration of In dopant, as well as by UV light irradiation (photo-induced doping). The pattern of electricity of an IZO NC film matches the shift of LSPR independent of dopant concentration. The UV light irradiation clearly enhanced the electrical properties of the films (350Ω/sq) due to increase carrier density explained by LSPR and confirmed by X-ray photoelectron spectroscopy. The IZO NCs can be easily dispersed in various organic solvents and serve as inks for assembling uniform films via solution processes. These IZO NC ink is promising for application in next-generation solution-based field effect transistors and other optoelectronic devices.
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Affiliation(s)
- Yusufkadie Yibi
- Ministry of Industry and Information Technology of the China Key Laboratory of Advanced Display Materials and Devices, Institute of Optoelectronics & Nanomaterials, College of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Jiawei Chen
- Ministry of Industry and Information Technology of the China Key Laboratory of Advanced Display Materials and Devices, Institute of Optoelectronics & Nanomaterials, College of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Jie Xue
- Ministry of Industry and Information Technology of the China Key Laboratory of Advanced Display Materials and Devices, Institute of Optoelectronics & Nanomaterials, College of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Jizhong Song
- Ministry of Industry and Information Technology of the China Key Laboratory of Advanced Display Materials and Devices, Institute of Optoelectronics & Nanomaterials, College of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing 210094, China.
| | - Haibo Zeng
- Ministry of Industry and Information Technology of the China Key Laboratory of Advanced Display Materials and Devices, Institute of Optoelectronics & Nanomaterials, College of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
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20
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Cao S, Zheng J, Zhao J, Yang Z, Li C, Guan X, Yang W, Shang M, Wu T. Enhancing the Performance of Quantum Dot Light-Emitting Diodes Using Room-Temperature-Processed Ga-Doped ZnO Nanoparticles as the Electron Transport Layer. ACS APPLIED MATERIALS & INTERFACES 2017; 9:15605-15614. [PMID: 28421740 DOI: 10.1021/acsami.7b03262] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Colloidal ZnO nanoparticle (NP) films are recognized as efficient electron transport layers (ETLs) for quantum dot light-emitting diodes (QD-LEDs) with good stability and high efficiency. However, because of the inherently high work function of such films, spontaneous charge transfer occurs at the QD/ZnO interface in such a QD-LED, thus leading to reduced performance. Here, to improve the QD-LED performance, we prepared Ga-doped ZnO NPs with low work functions and tailored band structures via a room-temperature (RT) solution process without the use of bulky organic ligands. We found that the charge transfer at the interface between the CdSe/ZnS QDs and the doped ZnO NPs was significantly weakened because of the incorporated Ga dopants. Remarkably, the as-assembled QD-LEDs, with Ga-doped ZnO NPs as the ETLs, exhibited superior luminances of up to 44 000 cd/m2 and efficiencies of up to 15 cd/A, placing them among the most efficient red-light QD-LEDs ever reported. This discovery provides a new strategy for fabricating high-performance QD-LEDs by using RT-processed Ga-doped ZnO NPs as the ETLs, which could be generalized to improve the efficiency of other optoelectronic devices.
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Affiliation(s)
- Sheng Cao
- Institute of Materials, Ningbo University of Technology , Ningbo 315016, China
- Institute for Advanced Materials and Technology, University of Science and Technology Beijing , Beijing 100083, China
| | - Jinju Zheng
- Institute of Materials, Ningbo University of Technology , Ningbo 315016, China
| | - Jialong Zhao
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education, Jilin Normal University , Siping 136000, China
| | - Zuobao Yang
- Institute of Materials, Ningbo University of Technology , Ningbo 315016, China
| | - Chengming Li
- Institute for Advanced Materials and Technology, University of Science and Technology Beijing , Beijing 100083, China
| | - Xinwei Guan
- Materials Science and Engineering, King Abdullah University of Science and Technology (KAUST) , Thuwal 23955-6900, Saudi Arabia
| | - Weiyou Yang
- Institute of Materials, Ningbo University of Technology , Ningbo 315016, China
| | - Minghui Shang
- Institute of Materials, Ningbo University of Technology , Ningbo 315016, China
| | - Tom Wu
- Materials Science and Engineering, King Abdullah University of Science and Technology (KAUST) , Thuwal 23955-6900, Saudi Arabia
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21
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Ghosh S, Saha M, Paul S, De SK. Shape Controlled Plasmonic Sn Doped CdO Colloidal Nanocrystals: A Synthetic Route to Maximize the Figure of Merit of Transparent Conducting Oxide. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2017; 13:1602469. [PMID: 27935253 DOI: 10.1002/smll.201602469] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2016] [Revised: 11/08/2016] [Indexed: 06/06/2023]
Abstract
The synthesis of different anisotropic shaped (eight different shapes) Sn4+ doped CdO (Sn:CdO) colloidal nanocrystals (NCs) by precise tuning of precursor reactivity and proper choice of capping agent is reported. In all these systems, formation of Sn:CdO quantum dots (QDs) of 2-3 nm is identified at very early stage of reaction. The colloidally stable QDs act as a continuous source for the formation of primary nanoparticles that can be transformed selectively into specific type of nanoparticle morphology. The specific facet stabilization of fcc (face centered cubic)CdO is predicted by particular choice of ligand. Fine tuning of plasmonic absorbance band can be achieved by variation of Sn4+ doping concentration. Different anisotropic Sn:CdO NCs exhibit interesting shape dependent plasmonic absorbance features in NIR region. High quality crack free uniform dense thin film has been deposited on glass substrate to make high quality transparent conducting oxide (TCO) coatings. figure of merit of TCO can be maximized as high as 0.523 Ω-1 with conductivity of 43 600 S cm-1 and visible transmittance of ≈85% which is much higher than commercially available tin doped indium oxide and other transparent electrodes.
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Affiliation(s)
- Sirshendu Ghosh
- Department of Materials Science, Indian Association for the Cultivation of Science, Kolkata, 700032, India
| | - Manas Saha
- Department of Physics, Shibpur Dinobundhoo Inst. (College), Howrah, 711102, India
| | - Sumana Paul
- Department of Materials Science, Indian Association for the Cultivation of Science, Kolkata, 700032, India
| | - S K De
- Department of Materials Science, Indian Association for the Cultivation of Science, Kolkata, 700032, India
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22
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Akin S, Erol E, Sonmezoglu S. Enhancing the electron transfer and band potential tuning with long-term stability of ZnO based dye-sensitized solar cells by gallium and tellurium as dual-doping. Electrochim Acta 2017. [DOI: 10.1016/j.electacta.2016.12.122] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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23
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Liang X, Bai S, Wang X, Dai X, Gao F, Sun B, Ning Z, Ye Z, Jin Y. Colloidal metal oxide nanocrystals as charge transporting layers for solution-processed light-emitting diodes and solar cells. Chem Soc Rev 2017; 46:1730-1759. [DOI: 10.1039/c6cs00122j] [Citation(s) in RCA: 84] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
This review bridges the chemistry of colloidal oxide nanocrystals and their application as charge transporting interlayers in solution-processed optoelectronics.
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Affiliation(s)
- Xiaoyong Liang
- State Key Laboratory of Silicon Materials
- School of Materials Science and Engineering
- Zhejiang University
- Hangzhou 310027
- People's Republic of China
| | - Sai Bai
- Department of Physics
- Chemistry and Biology (IFM)
- Linköping University
- SE-581 83 Linköping
- Sweden
| | - Xin Wang
- State Key Laboratory of Silicon Materials
- School of Materials Science and Engineering
- Zhejiang University
- Hangzhou 310027
- People's Republic of China
| | - Xingliang Dai
- State Key Laboratory of Silicon Materials
- School of Materials Science and Engineering
- Zhejiang University
- Hangzhou 310027
- People's Republic of China
| | - Feng Gao
- Department of Physics
- Chemistry and Biology (IFM)
- Linköping University
- SE-581 83 Linköping
- Sweden
| | - Baoquan Sun
- Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices
- Institute of Functional Nano & Soft Materials (FUNSOM)
- Soochow University
- Suzhou 215123
- People's Republic of China
| | | | - Zhizhen Ye
- State Key Laboratory of Silicon Materials
- School of Materials Science and Engineering
- Zhejiang University
- Hangzhou 310027
- People's Republic of China
| | - Yizheng Jin
- Center for Chemistry of High-Performance & Novel Materials
- State Key Laboratory of Silicon Materials
- Department of Chemistry
- Zhejiang University
- Hangzhou 310027
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24
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Sturaro M, Della Gaspera E, Michieli N, Cantalini C, Emamjomeh SM, Guglielmi M, Martucci A. Degenerately Doped Metal Oxide Nanocrystals as Plasmonic and Chemoresistive Gas Sensors. ACS APPLIED MATERIALS & INTERFACES 2016; 8:30440-30448. [PMID: 27750418 DOI: 10.1021/acsami.6b09467] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Highly doped wide band gap metal oxide nanocrystals have recently been proposed as building blocks for applications as transparent electrodes, electrochromics, plasmonics, and optoelectronics in general. Here we demonstrate the application of gallium-doped zinc oxide (GZO) nanocrystals as novel plasmonic and chemiresistive sensors for the detection of hazardous gases including hydrogen (H2) and nitrogen dioxide (NO2). GZO nanocrystals with a tunable surface plasmon resonance in the near-infrared are obtained using a colloidal heat-up synthesis. Thanks to the strong sensitivity of the plasmon resonances to chemical and electrical changes occurring at the surface of the nanocrystals, such optical features can be used to detect the presence of toxic gases. By monitoring the changes in the dopant-induced plasmon resonance in the near-infrared, we demonstrate that GZO thin films prepared depositing an assembly of highly doped GZO colloids are able to optically detect both oxidizing and reducing gases at mild (<100 °C) operating temperatures. Combined optical and electrical measurements show that trivalent dopants within ZnO nanocrystals enhance the gas sensing response compared to undoped ZnO. Moreover, improved sub-ppm of NO2 gas sensitivity is achieved by activating the sensors response through combined purple-blue (λ = 430 nm) light irradiation and mild heating at 75 °C. In addition, these thin films based on degenerately doped semiconductors are highly transparent in the visible range, enabling the fabrication of "invisible" gas sensors. The use of highly doped semiconductive nanocrystals for both IR plasmonic and chemiresistive sensors represent a marked advancement toward the development of highly sensitive and selective devices.
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Affiliation(s)
| | | | | | - Carlo Cantalini
- Dipartimento di Ingegneria Industriale, Università di L'Aquila , L'Aquila, Italy
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25
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Cole MT, Parmee RJ, Kumar A, Collins CM, Kang MH, Xiao J, Cepek C, Yuan X, Milne WI. Conjugated polyelectrolyte nano field emission adlayers. NANOSCALE HORIZONS 2016; 1:304-312. [PMID: 32260650 DOI: 10.1039/c6nh00071a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Here we report on a straightforward and rapid means of enhancing the field electron emission performance of nascent vertically aligned multi-walled carbon nanotubes by introducing a polar zwitterionic conjugated polyelectrolyte adlayer at the vacuum-emitter interface. We attribute the observed 66% decrease in turn-on electric field to the augmented emitter micro-morphology and shifted surface band structure. The composite emitters can be optically modulated by exploiting the absorption cross-section of the solution cast adlayer, which increases the local carrier concentration which broadens the effective electrostatic shape of the emitter during optical excitation. Assessment via scanning anode field emission microscopy reveals a 25% improvement in DC time stability, a significant reduction in long-term hysteresis shift, and a threefold increase in bandwidth during pulsed mode operation.
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Affiliation(s)
- M T Cole
- Department of Engineering, Electrical Engineering Division, Cambridge University, CB3 0FA, UK.
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26
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El-Saftawy A, Abdel Reheem A, Kandil S, Abd El Aal S, Salama S. Comparative studies on PADC polymeric detector treated by gamma radiation and Ar ion beam. APPLIED SURFACE SCIENCE 2016; 371:596-606. [DOI: 10.1016/j.apsusc.2016.03.044] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
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27
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Paul S, Ghosh S, Saha M, De SK. Enhanced photophysical properties of plasmonic magnetic metal-alloyed semiconductor heterostructure nanocrystals: a case study for the Ag@Ni/Zn1−xMgxO system. Phys Chem Chem Phys 2016; 18:13092-107. [DOI: 10.1039/c6cp00375c] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Multiple plasmonic magnetic Ag@Ni core–shell metal nanocrystal decorated Zn1−xMgxO nanoheterostructures have been synthesized and enhanced photophysical properties were found.
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Affiliation(s)
- Sumana Paul
- Department of Materials Science
- Indian Association for the Cultivation of Science
- Kolkata-700032
- India
| | - Sirshendu Ghosh
- Department of Materials Science
- Indian Association for the Cultivation of Science
- Kolkata-700032
- India
| | - Manas Saha
- Department of Materials Science
- Indian Association for the Cultivation of Science
- Kolkata-700032
- India
| | - S. K. De
- Department of Materials Science
- Indian Association for the Cultivation of Science
- Kolkata-700032
- India
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