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Khan R, Rahman NU, Hayat MF, Ghernaout D, Salih AAM, Ashraf GA, Samad A, Mahmood MA, Rahman N, Sohail M, Iqbal S, Abdullaev S, Khan A. Unveiling cutting-edge developments: architectures and nanostructured materials for application in optoelectronic artificial synapses. NANOSCALE 2024; 16:14589-14620. [PMID: 39011743 DOI: 10.1039/d4nr00904e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/17/2024]
Abstract
One possible result of low-level characteristics in the traditional von Neumann formulation system is brain-inspired photonics technology based on human brain idea. Optoelectronic neural devices, which are accustomed to imitating the sensory role of biological synapses by adjusting connection measures, can be used to fabricate highly reliable neurologically calculating devices. In this case, nanosized materials and device designs are attracting attention since they provide numerous potential benefits in terms of limited cool contact, rapid transfer fluidity, and the capture of photocarriers. In addition, the combination of classic nanosized photodetectors with recently generated digital synapses offers promising results in a variety of practical applications, such as data processing and computation. Herein, we present the progress in constructing improved optoelectronic synaptic devices that rely on nanomaterials, for example, 0-dimensional (quantum dots), 1-dimensional, and 2-dimensional composites, besides the continuously developing mixed heterostructures. Furthermore, the challenges and potential prospects linked with this field of study are discussed in this paper.
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Affiliation(s)
- Rajwali Khan
- National Water and Energy Center, United Arab Emirates University, Al Ain, 15551, United Arab Emirates.
- Department of Physics, University of Lakki Marwat, Lakki Marwat, 2842, KP, Pakistan
| | - Naveed Ur Rahman
- National Water and Energy Center, United Arab Emirates University, Al Ain, 15551, United Arab Emirates.
- Department of Physics, University of Lakki Marwat, Lakki Marwat, 2842, KP, Pakistan
| | | | - Djamel Ghernaout
- Chemical Engineering Department, College of Engineering, University of Ha'il, PO Box 2440, Ha'il 81441, Saudi Arabia
- Chemical Engineering Department, Faculty of Engineering, University of Blida, PO Box 270, Blida 09000, Algeria
| | - Alsamani A M Salih
- Chemical Engineering Department, College of Engineering, University of Ha'il, PO Box 2440, Ha'il 81441, Saudi Arabia
- Department of Chemical Engineering, Faculty of Engineering, Al Neelain University, Khartoum 12702, Sudan
| | | | - Abdus Samad
- Department of Physics, University of Lakki Marwat, Lakki Marwat, 2842, KP, Pakistan
| | | | - Nasir Rahman
- Department of Physics, University of Lakki Marwat, Lakki Marwat, 2842, KP, Pakistan
| | - Mohammad Sohail
- Department of Physics, University of Lakki Marwat, Lakki Marwat, 2842, KP, Pakistan
| | - Shahid Iqbal
- Department of Physics, University of Wisconsin, La Crosse, WI 54601, USA
| | - Sherzod Abdullaev
- Senior Researcher, Engineering School, Central Asian University, Tashkent, Uzbekistan
- Senior Researcher, Scientific and Innovation Department, Tashkent State Pedagogical University, Uzbekistan
| | - Alamzeb Khan
- Yale University School of Medicine, New Haven, Connecticut, USA
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2
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Roshan H, Zhu D, Piccinotti D, Dai J, De Franco M, Barelli M, Prato M, De Trizio L, Manna L, Di Stasio F. Near Infrared Light-Emitting Diodes Based on Colloidal InAs/ZnSe Core/Thick-Shell Quantum Dots. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2400734. [PMID: 38622892 PMCID: PMC11187924 DOI: 10.1002/advs.202400734] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/20/2024] [Revised: 03/10/2024] [Indexed: 04/17/2024]
Abstract
Heavy-metal-free III-V colloidal quantum dots (QDs) exhibit promising attributes for application in optoelectronics. Among them, InAs QDs are demonstrating excellent optical performance with respect to absorption and emission in the near-infrared spectral domain. Recently, InAs QDs attained a substantial improvement in photoluminescence quantum yield, achieving 70% at a wavelength of 900 nm through the strategic overgrowth of a thick ZnSe shell atop the InAs core. In the present study, light-emitting diodes (LEDs) based on this type of InAs/ZnSe QDs are fabricated, reaching an external quantum efficiency (EQE) of 13.3%, a turn-on voltage of 1.5V, and a maximum radiance of 12 Wsr-1m-2. Importantly, the LEDs exhibit an extensive emission dynamic range, characterized by a nearly linear correlation between emission intensity and current density, which can be attributed to the efficient passivation provided by the thick ZnSe shell. The obtained results are comparable to state-of-the-art PbS QD LEDs. Furthermore, it should be stressed not only that the fabricated LEDs are fully RoHS-compliant but also that the emitting InAs QDs are prepared via a synthetic route based on a non-pyrophoric, cheap, and commercially available as precursor, namely tris(dimethylamino)-arsine.
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Affiliation(s)
- Hossein Roshan
- Photonic NanomaterialsIstituto Italiano di TecnologiaVia Morego 30Genova16163Italy
| | - Dongxu Zhu
- NanochemistryIstituto Italiano di TecnologiaVia Morego 30Genova16163Italy
| | - Davide Piccinotti
- Photonic NanomaterialsIstituto Italiano di TecnologiaVia Morego 30Genova16163Italy
| | - Jinfei Dai
- NanochemistryIstituto Italiano di TecnologiaVia Morego 30Genova16163Italy
- Key Laboratory for Physical Electronics and Devices of the Ministry of Education & Shaanxi Key Lab of Information Photonic TechniqueSchool of Electronic Science and EngineeringXi'an Jiaotong UniversityXi'an710049China
| | - Manuela De Franco
- Photonic NanomaterialsIstituto Italiano di TecnologiaVia Morego 30Genova16163Italy
- Dipartimento di Chimica e Chimica IndustrialeUniversità degli Studi di GenovaVia Dodecaneso 31Genova16146Italy
| | - Matteo Barelli
- Photonic NanomaterialsIstituto Italiano di TecnologiaVia Morego 30Genova16163Italy
| | - Mirko Prato
- Materials Characterization FacilityIstituto Italiano di TecnologiaVia Morego 30Genova16163Italy
| | - Luca De Trizio
- Chemistry FacilityIstituto Italiano di TecnologiaVia Morego 30Genova16163Italy
| | - Liberato Manna
- NanochemistryIstituto Italiano di TecnologiaVia Morego 30Genova16163Italy
| | - Francesco Di Stasio
- Photonic NanomaterialsIstituto Italiano di TecnologiaVia Morego 30Genova16163Italy
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3
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Kamath A, Guyot-Sionnest P. The "energy gap law" for mid-infrared nanocrystals. J Chem Phys 2024; 160:200901. [PMID: 38785281 DOI: 10.1063/5.0206018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2024] [Accepted: 05/05/2024] [Indexed: 05/25/2024] Open
Abstract
Colloidal quantum dots are of increasing interest for mid-infrared detection and emission, but device performances will vastly benefit from reducing the non-radiative recombination. Empirically, the photoluminescence quantum yield decreases exponentially toward the mid-infrared, which appears similar to the energy gap law known for molecular fluorescence in the near-infrared. For molecules, the mechanism is electron-vibration coupling and fast internal vibrational relaxation. Here, we explore the possible mechanisms for inorganic quantum dots. The primary mechanism is assigned to an electric dipole near-field energy transfer from the quantum dot electronic transitions to the infrared absorption of surface organic ligands and then to the multiphonon absorption of the quantum dot inorganic core or the surrounding inorganic matrix. In order to obtain luminescent quantum dots in the 3-10 μm range, we motivate the importance of using inorganic matrices, which have a higher infrared transparency compared to organic materials. At longer wavelengths, inter-quantum dot energy transfer is noted to be much faster than radiative relaxation, indicating that bright mid-infrared colloidal quantum dot films might then benefit from dilution.
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Affiliation(s)
- Ananth Kamath
- James Franck Institute, The University of Chicago, 929 East 57th Street, Chicago, Illinois 60637, USA
| | - Philippe Guyot-Sionnest
- James Franck Institute, The University of Chicago, 929 East 57th Street, Chicago, Illinois 60637, USA
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4
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Yu X, Ji Y, Shen X, Le X. Progress in Advanced Infrared Optoelectronic Sensors. NANOMATERIALS (BASEL, SWITZERLAND) 2024; 14:845. [PMID: 38786801 PMCID: PMC11123936 DOI: 10.3390/nano14100845] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2024] [Revised: 05/09/2024] [Accepted: 05/10/2024] [Indexed: 05/25/2024]
Abstract
Infrared optoelectronic sensors have attracted considerable research interest over the past few decades due to their wide-ranging applications in military, healthcare, environmental monitoring, industrial inspection, and human-computer interaction systems. A comprehensive understanding of infrared optoelectronic sensors is of great importance for achieving their future optimization. This paper comprehensively reviews the recent advancements in infrared optoelectronic sensors. Firstly, their working mechanisms are elucidated. Then, the key metrics for evaluating an infrared optoelectronic sensor are introduced. Subsequently, an overview of promising materials and nanostructures for high-performance infrared optoelectronic sensors, along with the performances of state-of-the-art devices, is presented. Finally, the challenges facing infrared optoelectronic sensors are posed, and some perspectives for the optimization of infrared optoelectronic sensors are discussed, thereby paving the way for the development of future infrared optoelectronic sensors.
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Affiliation(s)
- Xiang Yu
- School of Physics, Beihang University, Beijing 100191, China
- Beijing Advanced Innovation Center for Big Data-Based Precision Medicine, School of Medicine and Engineering, Beihang University, Beijing 100191, China
- Beijing Key Laboratory of Advanced Nuclear Energy Materials and Physics, Beihang University, Beijing 100191, China
| | - Yun Ji
- Department of Electrical and Computer Engineering, National University of Singapore, 4 Engineering Drive 3, Singapore 117583, Singapore
| | - Xinyi Shen
- School of Physics, Beihang University, Beijing 100191, China
- Beijing Advanced Innovation Center for Big Data-Based Precision Medicine, School of Medicine and Engineering, Beihang University, Beijing 100191, China
- Beijing Key Laboratory of Advanced Nuclear Energy Materials and Physics, Beihang University, Beijing 100191, China
| | - Xiaoyun Le
- School of Physics, Beihang University, Beijing 100191, China
- Beijing Advanced Innovation Center for Big Data-Based Precision Medicine, School of Medicine and Engineering, Beihang University, Beijing 100191, China
- Beijing Key Laboratory of Advanced Nuclear Energy Materials and Physics, Beihang University, Beijing 100191, China
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5
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Xia K, Gao XD, Fei GT, Xu SH, Liang YF, Qu XX. High-Performance Visible to Mid-Infrared Photodetectors Based on HgTe Colloidal Quantum Dots under Room Temperature. ACS APPLIED MATERIALS & INTERFACES 2024. [PMID: 38669621 DOI: 10.1021/acsami.4c00641] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/28/2024]
Abstract
HgTe colloidal quantum dots (CQDs) are one of few materials that can realize near-to-midwave infrared photodetection. And the quality of HgTe CQD directly affects the performance of photodetection. In this work, we optimize the method of synthesizing HgTe CQDs to reduce the defect concentration, therefore improving the photoelectric properties. The photodetector based on HeTe CQD can respond to the light from the visible to mid-infrared band. Notably, a photoresponse to 4000 nm light at room temperature is realized. The responsivity and detectivity are 90.6 mA W-1 and 6.9 × 107 Jones under 1550 nm light illumination, which are better than these of most reported HgTe CQD photodetectors. The response speed reaches a magnitude of microseconds with a rising time of τr = 1.9 μs and a falling time of τf = 1.5 μs at 10 kHz under 1550 nm light illumination.
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Affiliation(s)
- Kai Xia
- Key Laboratory of Materials Physics and Anhui Key Laboratory of Nanomaterials and Nanotechnology, Institute of Solid State Physics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, Anhui 230031, PR China
- University of Science and Technology of China, Hefei, Anhui 230026, PR China
| | - Xu Dong Gao
- Key Laboratory of Materials Physics and Anhui Key Laboratory of Nanomaterials and Nanotechnology, Institute of Solid State Physics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, Anhui 230031, PR China
| | - Guang Tao Fei
- Key Laboratory of Materials Physics and Anhui Key Laboratory of Nanomaterials and Nanotechnology, Institute of Solid State Physics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, Anhui 230031, PR China
| | - Shao Hui Xu
- Key Laboratory of Materials Physics and Anhui Key Laboratory of Nanomaterials and Nanotechnology, Institute of Solid State Physics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, Anhui 230031, PR China
| | - Yi Fei Liang
- Key Laboratory of Materials Physics and Anhui Key Laboratory of Nanomaterials and Nanotechnology, Institute of Solid State Physics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, Anhui 230031, PR China
- University of Science and Technology of China, Hefei, Anhui 230026, PR China
| | - Xiao Xuan Qu
- Key Laboratory of Materials Physics and Anhui Key Laboratory of Nanomaterials and Nanotechnology, Institute of Solid State Physics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, Anhui 230031, PR China
- University of Science and Technology of China, Hefei, Anhui 230026, PR China
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6
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Zhang H, Prado Y, Alchaar R, Lehouelleur H, Cavallo M, Dang TH, Khalili A, Bossavit E, Dabard C, Ledos N, Silly MG, Madouri A, Fournier D, Utterback JK, Pierucci D, Parahyba V, Potet P, Darson D, Ithurria S, Bartłomiej Szafran, Diroll BT, Climente JI, Lhuillier E. Infrared Imaging Using Thermally Stable HgTe/CdS Nanocrystals. NANO LETTERS 2024. [PMID: 38608158 DOI: 10.1021/acs.nanolett.4c00907] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/14/2024]
Abstract
Transferring nanocrystals (NCs) from the laboratory environment toward practical applications has raised new challenges. HgTe appears as the most spectrally tunable infrared colloidal platform. Its low-temperature synthesis reduces the growth energy cost yet also favors sintering. Once coupled to a read-out circuit, the Joule effect aggregates the particles, leading to a poorly defined optical edge and large dark current. Here, we demonstrate that CdS shells bring the expected thermal stability (no redshift upon annealing, reduced tendency to form amalgams, and preservation of photoconduction after an atomic layer deposition process). The electronic structure of these confined particles is unveiled using k.p self-consistent simulations showing a significant exciton binding energy of ∼200 meV. After shelling, the material displays a p-type behavior that favors the generation of photoconductive gain. The latter is then used to increase the external quantum efficiency of an infrared imager, which now reaches 40% while presenting long-term stability.
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Affiliation(s)
- Huichen Zhang
- Sorbonne Université, CNRS, Institut des NanoSciences de Paris, Paris 75005, France
| | - Yoann Prado
- Sorbonne Université, CNRS, Institut des NanoSciences de Paris, Paris 75005, France
| | - Rodolphe Alchaar
- Sorbonne Université, CNRS, Institut des NanoSciences de Paris, Paris 75005, France
| | - Henri Lehouelleur
- Laboratoire de Physique et d'Etude des Matériaux, ESPCI-Paris, PSL Research University, Sorbonne Université, CNRS, Paris 75005, France
| | - Mariarosa Cavallo
- Sorbonne Université, CNRS, Institut des NanoSciences de Paris, Paris 75005, France
| | - Tung Huu Dang
- Sorbonne Université, CNRS, Institut des NanoSciences de Paris, Paris 75005, France
- Laboratoire de Physique de l'Ecole normale supérieure, ENS, Université PSL, CNRS, Sorbonne Université, Sorbonne Paris Cité, Paris 75005, France
| | - Adrien Khalili
- Sorbonne Université, CNRS, Institut des NanoSciences de Paris, Paris 75005, France
| | - Erwan Bossavit
- Sorbonne Université, CNRS, Institut des NanoSciences de Paris, Paris 75005, France
- Synchrotron SOLEIL, Saint-Aubin 91190, France
| | - Corentin Dabard
- Laboratoire de Physique et d'Etude des Matériaux, ESPCI-Paris, PSL Research University, Sorbonne Université, CNRS, Paris 75005, France
| | - Nicolas Ledos
- Sorbonne Université, CNRS, Institut des NanoSciences de Paris, Paris 75005, France
| | | | - Ali Madouri
- Centre de Nanosciences et de Nanotechnologies, CNRS, Université Paris-Saclay, C2N, Palaiseau 91120, France
| | - Daniele Fournier
- Sorbonne Université, CNRS, Institut des NanoSciences de Paris, Paris 75005, France
| | - James K Utterback
- Sorbonne Université, CNRS, Institut des NanoSciences de Paris, Paris 75005, France
| | - Debora Pierucci
- Sorbonne Université, CNRS, Institut des NanoSciences de Paris, Paris 75005, France
| | - Victor Parahyba
- New Imaging Technologies SA, Verrières le Buisson 91370, France
| | - Pierre Potet
- New Imaging Technologies SA, Verrières le Buisson 91370, France
| | - David Darson
- Laboratoire de Physique de l'Ecole normale supérieure, ENS, Université PSL, CNRS, Sorbonne Université, Sorbonne Paris Cité, Paris 75005, France
| | - Sandrine Ithurria
- Laboratoire de Physique et d'Etude des Matériaux, ESPCI-Paris, PSL Research University, Sorbonne Université, CNRS, Paris 75005, France
| | - Bartłomiej Szafran
- Faculty of Physics and Applied Computer Science, AGH University, Kraków PL-30-059, Poland
| | - Benjamin T Diroll
- Center for Nanoscale Materials, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Juan I Climente
- Departament de Quimica Fisica i Analitica, Universitat Jaume I, Castello de la Plana E-12080, Spain
| | - Emmanuel Lhuillier
- Sorbonne Université, CNRS, Institut des NanoSciences de Paris, Paris 75005, France
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7
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Caillas A, Guyot-Sionnest P. Uncooled High Detectivity Mid-Infrared Photoconductor Using HgTe Quantum Dots and Nanoantennas. ACS NANO 2024; 18:8952-8960. [PMID: 38466148 DOI: 10.1021/acsnano.3c12581] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/12/2024]
Abstract
Using a metal/insulator/metal (MIM) structure with a gold nanoantenna array made by electron beam lithography, the responsivity of a HgTe colloidal quantum dot film is enhanced in the mid-infrared. Simulations indicate that the spatially averaged peak spectral absorption of an 80 nm film is 60%, enhanced 23-fold compared to that of the same film on a bare sapphire substrate. The field intensity enhancement is focused near the antenna tips, being 20-fold 100 nm away, which represents only 1% of the total area and up to 1000-fold at the tips. The simulated polarized absorption spectra are in good agreement with the experiments, with a strong resonance around 4 μm. A responsivity of 0.6 A/W is obtained at a 1 V bias. Noise measurements separate the 1/f noise from the generation-recombination white noise and give a spatially averaged photoconductive gain of 0.3 at 1 V bias. The spatially averaged peak detectivity is improved 15-fold compared to the same film on a sapphire substrate without an MIM structure. The experimental peak detectivity reaches 9 × 109 Jones at 2650 cm-1 and 80 kHz, decreasing at lower frequencies. The MIM structure also enhances the spatially averaged peak photoluminescence of the CQD film by 16-fold, which is a potential Purcell enhancement. The good agreement between simulations and measurements confirms the viability of lithographically designed nanoantenna structures for vastly improving the performance of mid-IR colloidal quantum dot photoconductors. Further improvements will be possible by matching the optically enhanced and current collection areas.
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Affiliation(s)
- Augustin Caillas
- James Franck Institute, The University of Chicago, 929 East 57th Street, Chicago, Illinois 60637, United States
| | - Philippe Guyot-Sionnest
- James Franck Institute, The University of Chicago, 929 East 57th Street, Chicago, Illinois 60637, United States
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8
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Sheikh T, Mir WJ, Nematulloev S, Maity P, Yorov KE, Hedhili MN, Emwas AH, Khan MS, Abulikemu M, Mohammed OF, Bakr OM. InAs Nanorod Colloidal Quantum Dots with Tunable Bandgaps Deep into the Short-Wave Infrared. ACS NANO 2023; 17:23094-23102. [PMID: 37955579 DOI: 10.1021/acsnano.3c08796] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/14/2023]
Abstract
InAs colloidal quantum dots (CQDs) have emerged as candidate lead- and mercury-free solution-processed semiconductors for infrared technology due to their appropriate bulk bandgap, which can be tuned by quantum confinement, and promising charge-carrier transport properties. However, the lack of suitable arsenic precursors and readily accessible synthesis conditions have limited InAs CQDs to smaller sizes (<7 nm), with bandgaps largely restricted to <1400 nm in the near-infrared spectral window. Conventional InAs CQD synthesis requires highly reactive, hazardous arsenic precursors, which are commercially scarce, making the synthesis hard to control and study. Here, we present a controlled synthesis strategy (using only readily available and less reactive precursors) to overcome the practical wavelength limitation of InAs CQDs, achieving monodisperse InAs nanorod CQDs with bandgaps tunable from ∼1200 to ∼1800 nm, thus crossing deep into the short-wave infrared (SWIR) region. By controlling the reactivity through in situ precursor complexation, we isolate the reaction mechanism, producing InAs nanorod CQDs that display narrow excitonic features and efficient carrier multiplication. Our work enables InAs CQDs for a wider range of SWIR applications.
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Affiliation(s)
- Tariq Sheikh
- KAUST Catalysis Center (KCC), Division of Physical Sciences and Engineering (PSE), King Abdullah University of Science and Technology, Thuwal 23955-6900, Kingdom of Saudi Arabia
| | - Wasim J Mir
- KAUST Catalysis Center (KCC), Division of Physical Sciences and Engineering (PSE), King Abdullah University of Science and Technology, Thuwal 23955-6900, Kingdom of Saudi Arabia
| | - Saidkhodzha Nematulloev
- KAUST Catalysis Center (KCC), Division of Physical Sciences and Engineering (PSE), King Abdullah University of Science and Technology, Thuwal 23955-6900, Kingdom of Saudi Arabia
| | - Partha Maity
- KAUST Catalysis Center (KCC), Division of Physical Sciences and Engineering (PSE), King Abdullah University of Science and Technology, Thuwal 23955-6900, Kingdom of Saudi Arabia
- Advanced Membranes and Porous Materials Center, Division of Physical Science and Engineering, Thuwal 23955-6900, Kingdom of Saudi Arabia
| | - Khursand E Yorov
- KAUST Catalysis Center (KCC), Division of Physical Sciences and Engineering (PSE), King Abdullah University of Science and Technology, Thuwal 23955-6900, Kingdom of Saudi Arabia
| | - Mohamed Nejib Hedhili
- KAUST Core Laboratories, King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Kingdom of Saudi Arabia
| | - Abdul-Hamid Emwas
- KAUST Core Laboratories, King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Kingdom of Saudi Arabia
| | - Mudeha Shafat Khan
- KAUST Catalysis Center (KCC), Division of Physical Sciences and Engineering (PSE), King Abdullah University of Science and Technology, Thuwal 23955-6900, Kingdom of Saudi Arabia
| | - Mutalifu Abulikemu
- KAUST Catalysis Center (KCC), Division of Physical Sciences and Engineering (PSE), King Abdullah University of Science and Technology, Thuwal 23955-6900, Kingdom of Saudi Arabia
| | - Omar F Mohammed
- KAUST Catalysis Center (KCC), Division of Physical Sciences and Engineering (PSE), King Abdullah University of Science and Technology, Thuwal 23955-6900, Kingdom of Saudi Arabia
- Advanced Membranes and Porous Materials Center, Division of Physical Science and Engineering, Thuwal 23955-6900, Kingdom of Saudi Arabia
| | - Osman M Bakr
- KAUST Catalysis Center (KCC), Division of Physical Sciences and Engineering (PSE), King Abdullah University of Science and Technology, Thuwal 23955-6900, Kingdom of Saudi Arabia
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9
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Dang TH, Cavallo M, Khalili A, Dabard C, Bossavit E, Zhang H, Ledos N, Prado Y, Lafosse X, Abadie C, Gacemi D, Ithurria S, Vincent G, Todorov Y, Sirtori C, Vasanelli A, Lhuillier E. Multiresonant Grating to Replace Transparent Conductive Oxide Electrode for Bias Selected Filtering of Infrared Photoresponse. NANO LETTERS 2023; 23:8539-8546. [PMID: 37712683 DOI: 10.1021/acs.nanolett.3c02306] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/16/2023]
Abstract
Optoelectronic devices rely on conductive layers as electrodes, but they usually introduce optical losses that are detrimental to the device performances. While the use of transparent conductive oxides is established in the visible region, these materials show high losses at longer wavelengths. Here, we demonstrate a photodiode based on a metallic grating acting as an electrode. The grating generates a multiresonant photonic structure over the diode stack and allows strong broadband absorption. The obtained device achieves the highest performances reported so far for a midwave infrared nanocrystal-based detector, with external quantum efficiency above 90%, detectivity of 7 × 1011 Jones at 80 K at 5 μm, and a sub-100 ns time response. Furthermore, we demonstrate that combining different gratings with a single diode stack can generate a bias reconfigurable response and develop new functionalities such as band rejection.
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Affiliation(s)
- Tung Huu Dang
- Sorbonne Université, CNRS, Institut des NanoSciences de Paris, 4 place Jussieu, 75005 Paris, France
- Laboratoire de Physique de l'Ecole Normale Supérieure, ENS, Université PSL, CNRS, Sorbonne Université, Université Paris Cité, 24 Rue Lhomond, 75005 Paris, France
| | - Mariarosa Cavallo
- Sorbonne Université, CNRS, Institut des NanoSciences de Paris, 4 place Jussieu, 75005 Paris, France
| | - Adrien Khalili
- Sorbonne Université, CNRS, Institut des NanoSciences de Paris, 4 place Jussieu, 75005 Paris, France
| | - Corentin Dabard
- Sorbonne Université, CNRS, Institut des NanoSciences de Paris, 4 place Jussieu, 75005 Paris, France
| | - Erwan Bossavit
- Sorbonne Université, CNRS, Institut des NanoSciences de Paris, 4 place Jussieu, 75005 Paris, France
| | - Huichen Zhang
- Sorbonne Université, CNRS, Institut des NanoSciences de Paris, 4 place Jussieu, 75005 Paris, France
| | - Nicolas Ledos
- Sorbonne Université, CNRS, Institut des NanoSciences de Paris, 4 place Jussieu, 75005 Paris, France
| | - Yoann Prado
- Sorbonne Université, CNRS, Institut des NanoSciences de Paris, 4 place Jussieu, 75005 Paris, France
| | - Xavier Lafosse
- Centre de Nanosciences et de Nanotechnologies, CNRS, Univ. Paris-Sud, Université Paris-Saclay, 10 Boulevard Thomas Gobert, 91120 Palaiseau, France
| | - Claire Abadie
- Sorbonne Université, CNRS, Institut des NanoSciences de Paris, 4 place Jussieu, 75005 Paris, France
| | - Djamal Gacemi
- Laboratoire de Physique de l'Ecole Normale Supérieure, ENS, Université PSL, CNRS, Sorbonne Université, Université Paris Cité, 24 Rue Lhomond, 75005 Paris, France
| | - Sandrine Ithurria
- Laboratoire de Physique et d'Etude des Matériaux, ESPCI, PSL Research University, Sorbonne Université, CNRS UMR 8213, 10 rue Vauquelin, 75005 Paris, France
| | - Grégory Vincent
- DOTA, ONERA, Université Paris Saclay, 6 Chem. de la Vauve aux Granges, 91120 Palaiseau, France
| | - Yanko Todorov
- Laboratoire de Physique de l'Ecole Normale Supérieure, ENS, Université PSL, CNRS, Sorbonne Université, Université Paris Cité, 24 Rue Lhomond, 75005 Paris, France
| | - Carlo Sirtori
- Laboratoire de Physique de l'Ecole Normale Supérieure, ENS, Université PSL, CNRS, Sorbonne Université, Université Paris Cité, 24 Rue Lhomond, 75005 Paris, France
| | - Angela Vasanelli
- Laboratoire de Physique de l'Ecole Normale Supérieure, ENS, Université PSL, CNRS, Sorbonne Université, Université Paris Cité, 24 Rue Lhomond, 75005 Paris, France
| | - Emmanuel Lhuillier
- Sorbonne Université, CNRS, Institut des NanoSciences de Paris, 4 place Jussieu, 75005 Paris, France
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10
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Liu W, Deng S, Zhang L, Ju CW, Xie Y, Deng W, Chen J, Wu H, Cao Y. Short-Wavelength Infrared Organic Light-Emitting Diodes from A-D-A'-D-A Type Small Molecules with Emission beyond 1100 nm. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2302924. [PMID: 37262926 DOI: 10.1002/adma.202302924] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Revised: 05/15/2023] [Indexed: 06/03/2023]
Abstract
Short-wavelength infrared (SWIR) organic light-emitting diodes (OLEDs) have attracted great interest due to their potential applications in biological imaging, infrared lighting, optical communication, environmental monitoring, and surveillance. Due to an intrinsic limitation posed by the energy-gap law, achieving high-brightness in SWIR OLEDs remains a challenge. Herein, the study reports the use of novel A-D-A'-D-A type small molecules NTQ and BTQ for high-performance SWIR OLEDs. Benefiting from multiple D-A effect in conjugated skeleton, the small molecules NTQ and BTQ exhibit narrow optical gaps of 1.23 and 1.13 eV, respectively. SWIR electroluminescence (EL) emission from OLEDs based on NTQ and BTQ is achieved, with emission peaks at 1140 and 1175 nm, respectively. Not only owing to a negligible efficiency roll-off across the full range of applied current density but also the ability to afford a high operation current density of 5200 mA cm-2 , the resultant SWIR OLEDs based on NTQ exhibit a maximal radiant exitance of =1.12 mW cm-2 . Furthermore, the NTQ-based OLEDs also possess sub-gap turn-on voltage of 0.85 V, which is close to the physical limits derived from the generalized Kirchhoff and Planck equation. This work demonstrates that A-D-A'-D-A type small molecules offer significant promise for NIR/SWIR emitting material innovations.
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Affiliation(s)
- Wansheng Liu
- Institute of Polymer Optoelectronic Materials and Devices, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou, 510640, P. R. China
| | - Suinan Deng
- Institute of Polymer Optoelectronic Materials and Devices, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou, 510640, P. R. China
| | - Lianjie Zhang
- Institute of Polymer Optoelectronic Materials and Devices, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou, 510640, P. R. China
| | - Cheng-Wei Ju
- Pritzker School of Molecular Engineering, The University of Chicago, Chicago, IL, 60637, USA
| | - Yuan Xie
- Institute of Polymer Optoelectronic Materials and Devices, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou, 510640, P. R. China
| | - Wanyuan Deng
- Institute of Polymer Optoelectronic Materials and Devices, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou, 510640, P. R. China
| | - Junwu Chen
- Institute of Polymer Optoelectronic Materials and Devices, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou, 510640, P. R. China
| | - Hongbin Wu
- Institute of Polymer Optoelectronic Materials and Devices, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou, 510640, P. R. China
| | - Yong Cao
- Institute of Polymer Optoelectronic Materials and Devices, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou, 510640, P. R. China
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11
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Xia K, Fei GT, Xu SH, Gao XD, Liang YF. Hot-Injection Synthesis of HgTe Nanoparticles: Shape Control and Growth Mechanisms. Inorg Chem 2023; 62:13632-13638. [PMID: 37552842 DOI: 10.1021/acs.inorgchem.3c02030] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/10/2023]
Abstract
Understanding the growth mechanisms of HgTe nanoparticles (NPs) with varied shapes is crucial for their applications in infrared photodetection. Here, we investigated the growth mechanisms of HgTe NPs with nanorod, sphere, and tetrahedral shapes in depth. The HgTe NPs with a nanorod shape are obtained at low reaction temperatures and formed by breaking tetrapod branches, while HgTe NPs with sphere and tetrahedron shapes have been further achieved at increased reaction temperatures. The systematic crystal analyses demonstrate this effective shape control is related to the synergic effect among the anisotropic passivation of oleylamine, surface free energy, and reaction temperatures. Our findings have deepened the understanding of shape control of the HgTe NPs and inspired a growing passion in the design and engineering of infrared photodetectors using HgTe NPs.
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Affiliation(s)
- Kai Xia
- Key Laboratory of Materials Physics and Anhui Key Laboratory of Nanomaterials and Nanotechnology, Institute of Solid State Physics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, Anhui 230031, P. R. China
- University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
| | - Guang Tao Fei
- Key Laboratory of Materials Physics and Anhui Key Laboratory of Nanomaterials and Nanotechnology, Institute of Solid State Physics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, Anhui 230031, P. R. China
| | - Shao Hui Xu
- Key Laboratory of Materials Physics and Anhui Key Laboratory of Nanomaterials and Nanotechnology, Institute of Solid State Physics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, Anhui 230031, P. R. China
| | - Xu Dong Gao
- Key Laboratory of Materials Physics and Anhui Key Laboratory of Nanomaterials and Nanotechnology, Institute of Solid State Physics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, Anhui 230031, P. R. China
| | - Yi Fei Liang
- Key Laboratory of Materials Physics and Anhui Key Laboratory of Nanomaterials and Nanotechnology, Institute of Solid State Physics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, Anhui 230031, P. R. China
- University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
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12
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Nair VR, Shanthil M, Sandeep K, Savitha KU, Archana A, Deepamol V, Swetha C, Vaishag PV. Quantum Dot-Based Fluorometric Sensor for Hg(II) in Water Customizable for Onsite Visual Detection. ACS OMEGA 2023; 8:29468-29474. [PMID: 37599930 PMCID: PMC10433339 DOI: 10.1021/acsomega.3c03125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/06/2023] [Accepted: 07/19/2023] [Indexed: 08/22/2023]
Abstract
An easy naked-eye detection technique for mercuric ions in water using silanized quantum dots is demonstrated. Cadmium selenide quantum dots were synthesized and rendered water soluble by silica overcoating. The quantum dot emission was instantly turned off by the mercuric ions in the analyte, enabling visual detection. The emission quenching was associated with a concomitant bathochromic shift, both in the absorption and emission profiles. The underlying mechanism is a permanent surface modification of quantum dots by mercuric ions, altering the electronic structure and, in turn, the photophysical properties. The results confirmed the potential of this simple system to be customized for on-site visual detection of mercury contamination in water bodies, biological fluids, and soil with high selectivity and sensitivity.
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Affiliation(s)
- Vinayakan Ramachandran Nair
- Department
of Chemistry (Research Center under MG University, Kerala), NSS Hindu College (Nationally Accredited with “A”
Grade), Changanacherry 686102, Kerala, India
- Chemical
Sciences and Technology Division, National
Institute for Interdisciplinary Science and Technology (NIIST-CSIR), Thiruvananthapuram 695019, Kerala, India
| | - Madhavan Shanthil
- Department
of Chemistry, Government Victoria College, Research Center under University of Calicut, Palakkad 678001, Kerala, India
| | - Kulangara Sandeep
- Department
of Chemistry, Government Victoria College, Research Center under University of Calicut, Palakkad 678001, Kerala, India
| | - Kadencheeri Unnikrishnan Savitha
- Department
of Chemistry (Research Center under MG University, Kerala), NSS Hindu College (Nationally Accredited with “A”
Grade), Changanacherry 686102, Kerala, India
| | - Aravind Archana
- Aravind
Archana—Saveetha School of Engineering SIMATS, Chennai 602105, Tamilnadu, India
| | - Varghese Deepamol
- PG
Department of Chemistry, Alphonsa College, Pala 686 574, Kerala, India
| | - Chengat Swetha
- Department
of Chemistry, St. Thomas College, Ranni 689673, Kerala, India
| | - Pushpalatha Vijayakumar Vaishag
- Department
of Chemistry, Government Victoria College, Research Center under University of Calicut, Palakkad 678001, Kerala, India
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13
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Abstract
Lasers and optical amplifiers based on solution-processable materials have been long-desired devices for their compatibility with virtually any substrate, scalability, and ease of integration with on-chip photonics and electronics. These devices have been pursued across a wide range of materials including polymers, small molecules, perovskites, and chemically prepared colloidal semiconductor nanocrystals, also commonly referred to as colloidal quantum dots. The latter materials are especially attractive for implementing optical-gain media as in addition to being compatible with inexpensive and easily scalable chemical techniques, they offer multiple advantages derived from a zero-dimensional character of their electronic states. These include a size-tunable emission wavelength, low optical gain thresholds, and weak sensitivity of lasing characteristics to variations in temperature. Here we review the status of colloidal nanocrystal lasing devices, most recent advances in this field, outstanding challenges, and the ongoing progress toward technological viable devices including colloidal quantum dot laser diodes.
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Affiliation(s)
- Namyoung Ahn
- Nanotechnology and Advanced Spectroscopy Team, C-PCS, Chemistry Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, United States
| | - Clément Livache
- Nanotechnology and Advanced Spectroscopy Team, C-PCS, Chemistry Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, United States
| | - Valerio Pinchetti
- Nanotechnology and Advanced Spectroscopy Team, C-PCS, Chemistry Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, United States
| | - Victor I Klimov
- Nanotechnology and Advanced Spectroscopy Team, C-PCS, Chemistry Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, United States
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14
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Tian Y, Luo H, Chen M, Li C, Kershaw SV, Zhang R, Rogach AL. Mercury chalcogenide colloidal quantum dots for infrared photodetection: from synthesis to device applications. NANOSCALE 2023; 15:6476-6504. [PMID: 36960839 DOI: 10.1039/d2nr07309a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Commercial infrared (IR) photodetectors based on epitaxial growth inorganic semiconductors, e.g. InGaAs and HgCdTe, suffer from high fabrication cost, poor compatibility with silicon integrated circuits, rigid substrates and bulky cooling systems, which leaves a large development window for the emerging solution-processable semiconductor-based photo-sensing devices. Among the solution-processable semiconductors, mercury (Hg) chalcogenide colloidal quantum dots (QDs) exhibit unique ultra-broad and tuneable photo-responses in the short-wave infrared to far-wave infrared range, and have demonstrated photo-sensing abilities comparable to the commercial products, especially with advances in high operation temperature. Here, we provide a focused review on photodetectors employing Hg chalcogenide colloidal QDs, with a comprehensive summary of the essential progress in the areas of synthesis methods of QDs, property control, device engineering, focus plane array integration, etc. Besides imaging demonstrations, a series of Hg chalcogenide QD photodetector based flexible, integrated, multi-functional applications are also summarized. This review shows prospects for the next-generation low-cost highly-sensitive and compact IR photodetectors based on solution-processable Hg chalcogenide colloidal QDs.
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Affiliation(s)
- Yuanyuan Tian
- School of Electronic Science and Engineering, Xiamen University, Xiamen 361005, P. R. China.
| | - Hongqiang Luo
- School of Electronic Science and Engineering, Xiamen University, Xiamen 361005, P. R. China.
| | - Mengyu Chen
- School of Electronic Science and Engineering, Xiamen University, Xiamen 361005, P. R. China.
- Future Display Institute of Xiamen, Xiamen 361005, P. R. China
| | - Cheng Li
- School of Electronic Science and Engineering, Xiamen University, Xiamen 361005, P. R. China.
- Future Display Institute of Xiamen, Xiamen 361005, P. R. China
| | - Stephen V Kershaw
- Department of Materials Science and Engineering and Centre for Functional Photonics (CFP), City University of Hong Kong, Kowloon, Hong Kong SAR 999077, P. R. China.
| | - Rong Zhang
- Future Display Institute of Xiamen, Xiamen 361005, P. R. China
- Fujian Key Laboratory of Semiconductor Materials and Applications, CI Center for OSED, Department of Physics, Xiamen University, Xiamen 361005, P. R. China
- Engineering Research Center of Micro-nano Optoelectronic Materials and Devices, Ministry of Education, Xiamen University, Xiamen 361005, P. R. China
| | - Andrey L Rogach
- Department of Materials Science and Engineering and Centre for Functional Photonics (CFP), City University of Hong Kong, Kowloon, Hong Kong SAR 999077, P. R. China.
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15
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Stingel AM, Leemans J, Hens Z, Geiregat P, Petersen PB. Narrow homogeneous linewidths and slow cooling dynamics across infrared intra-band transitions in n-doped HgSe colloidal quantum dots. J Chem Phys 2023; 158:114202. [PMID: 36948807 DOI: 10.1063/5.0139795] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/03/2023] Open
Abstract
Intra-band transitions in colloidal quantum dots (QDs) are promising for opto-electronic applications in the mid-IR spectral region. However, such intra-band transitions are typically very broad and spectrally overlapping, making the study of individual excited states and their ultrafast dynamics very challenging. Here, we present the first full spectrum two-dimensional continuum infrared (2D CIR) spectroscopy study of intrinsically n-doped HgSe QDs, which exhibit mid-infrared intra-band transitions in their ground state. The obtained 2D CIR spectra reveal that underneath the broad absorption line shape of ∼500 cm-1, the transitions exhibit surprisingly narrow intrinsic linewidths with a homogeneous broadening of 175-250 cm-1. Furthermore, the 2D IR spectra are remarkably invariant, with no sign of spectral diffusion dynamics at waiting times up to 50 ps. Accordingly, we attribute the large static inhomogeneous broadening to the distribution of size and doping level of the QDs. In addition, the two higher-lying P-states of the QDs can be clearly identified in the 2D IR spectra along the diagonal with a cross-peak. However, there is no indication of cross-peak dynamics indicating that, despite the strong spin-orbit coupling in HgSe, transitions between the P-states must be longer than our maximum waiting time of 50 ps. This study illustrates a new frontier of 2D IR spectroscopy enabling the study of intra-band carrier dynamics in nanocrystalline materials across the entire mid-infrared spectrum.
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Affiliation(s)
- Ashley M Stingel
- Physical Chemistry II, Faculty of Chemistry and Biochemistry, Ruhr-University Bochum, Bochum, Germany
| | - Jari Leemans
- Physics and Chemistry of Nanostructures Group, Department of Chemistry, Faculty of Sciences, Ghent University, 9000 Gent, Belgium
| | - Zeger Hens
- Physics and Chemistry of Nanostructures Group, Department of Chemistry, Faculty of Sciences, Ghent University, 9000 Gent, Belgium
| | - Pieter Geiregat
- Physics and Chemistry of Nanostructures Group, Department of Chemistry, Faculty of Sciences, Ghent University, 9000 Gent, Belgium
| | - Poul B Petersen
- Physical Chemistry II, Faculty of Chemistry and Biochemistry, Ruhr-University Bochum, Bochum, Germany
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16
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Pierini S, Abadie C, Dang TH, Khalili A, Zhang H, Cavallo M, Prado Y, Gallas B, Ithurria S, Sauvage S, Dayen JF, Vincent G, Lhuillier E. Lithium-Ion Glass Gating of HgTe Nanocrystal Film with Designed Light-Matter Coupling. MATERIALS (BASEL, SWITZERLAND) 2023; 16:2335. [PMID: 36984214 PMCID: PMC10054404 DOI: 10.3390/ma16062335] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 03/01/2023] [Accepted: 03/08/2023] [Indexed: 06/18/2023]
Abstract
Nanocrystals' (NCs) band gap can be easily tuned over the infrared range, making them appealing for the design of cost-effective sensors. Though their growth has reached a high level of maturity, their doping remains a poorly controlled parameter, raising the need for post-synthesis tuning strategies. As a result, phototransistor device geometry offers an interesting alternative to photoconductors, allowing carrier density control. Phototransistors based on NCs that target integrated infrared sensing have to (i) be compatible with low-temperature operation, (ii) avoid liquid handling, and (iii) enable large carrier density tuning. These constraints drive the search for innovative gate technologies beyond traditional dielectric or conventional liquid and ion gel electrolytes. Here, we explore lithium-ion glass gating and apply it to channels made of HgTe narrow band gap NCs. We demonstrate that this all-solid gate strategy is compatible with large capacitance up to 2 µF·cm-2 and can be operated over a broad range of temperatures (130-300 K). Finally, we tackle an issue often faced by NC-based phototransistors:their low absorption; from a metallic grating structure, we combined two resonances and achieved high responsivity (10 A·W-1 or an external quantum efficiency of 500%) over a broadband spectral range.
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Affiliation(s)
- Stefano Pierini
- Sorbonne Université, CNRS, Institut des NanoSciences de Paris, INSP, 75005 Paris, France
| | - Claire Abadie
- Sorbonne Université, CNRS, Institut des NanoSciences de Paris, INSP, 75005 Paris, France
- ONERA-The French Aerospace Lab, 6 Chemin de la Vauve aux Granges, 91123 Palaiseau, France
| | - Tung Huu Dang
- Sorbonne Université, CNRS, Institut des NanoSciences de Paris, INSP, 75005 Paris, France
| | - Adrien Khalili
- Sorbonne Université, CNRS, Institut des NanoSciences de Paris, INSP, 75005 Paris, France
| | - Huichen Zhang
- Sorbonne Université, CNRS, Institut des NanoSciences de Paris, INSP, 75005 Paris, France
| | - Mariarosa Cavallo
- Sorbonne Université, CNRS, Institut des NanoSciences de Paris, INSP, 75005 Paris, France
| | - Yoann Prado
- Sorbonne Université, CNRS, Institut des NanoSciences de Paris, INSP, 75005 Paris, France
| | - Bruno Gallas
- Sorbonne Université, CNRS, Institut des NanoSciences de Paris, INSP, 75005 Paris, France
| | - Sandrine Ithurria
- Laboratoire de Physique et d’Etude des Matériaux, ESPCI-Paris, PSL Research University, Sorbonne Université, CNRS, 10 Rue Vauquelin, 75005 Paris, France
| | - Sébastien Sauvage
- CNRS, Centre de Nanosciences et de Nanotechnologies, Université Paris-Saclay, 91120 Palaiseau, France
| | - Jean Francois Dayen
- IPCMS-CNRS, Université de Strasbourg, 23 Rue du Loess, 67034 Strasbourg, France
- Institut Universitaire de France, 1 Rue Descartes, CEDEX 05, 75231 Paris, France
| | - Grégory Vincent
- ONERA-The French Aerospace Lab, 6 Chemin de la Vauve aux Granges, 91123 Palaiseau, France
| | - Emmanuel Lhuillier
- Sorbonne Université, CNRS, Institut des NanoSciences de Paris, INSP, 75005 Paris, France
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17
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Khalili A, Cavallo M, Dang TH, Dabard C, Zhang H, Bossavit E, Abadie C, Prado Y, Xu XZ, Ithurria S, Vincent G, Coinon C, Desplanque L, Lhuillier E. Mid-wave infrared sensitized InGaAs using intraband transition in doped colloidal II-VI nanocrystals. J Chem Phys 2023; 158:094702. [PMID: 36889960 DOI: 10.1063/5.0141328] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/05/2023] Open
Abstract
Narrow bandgap nanocrystals (NCs) are now used as infrared light absorbers, making them competitors to epitaxially grown semiconductors. However, these two types of materials could benefit from one another. While bulk materials are more effective in transporting carriers and give a high degree of doping tunability, NCs offer a larger spectral tunability without lattice-matching constraints. Here, we investigate the potential of sensitizing InGaAs in the mid-wave infrared throughout the intraband transition of self-doped HgSe NCs. Our device geometry enables the design of a photodiode remaining mostly unreported for intraband-absorbing NCs. Finally, this strategy allows for more effective cooling and preserves the detectivity above 108 Jones up to 200 K, making it closer to cryo-free operation for mid-infrared NC-based sensors.
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Affiliation(s)
- Adrien Khalili
- Sorbonne Université, CNRS-UMR 7588, Institut des NanoSciences de Paris, INSP, F-75005 Paris, France
| | - Mariarosa Cavallo
- Sorbonne Université, CNRS-UMR 7588, Institut des NanoSciences de Paris, INSP, F-75005 Paris, France
| | - Tung Huu Dang
- Sorbonne Université, CNRS-UMR 7588, Institut des NanoSciences de Paris, INSP, F-75005 Paris, France
| | - Corentin Dabard
- Sorbonne Université, CNRS-UMR 7588, Institut des NanoSciences de Paris, INSP, F-75005 Paris, France
| | - Huichen Zhang
- Sorbonne Université, CNRS-UMR 7588, Institut des NanoSciences de Paris, INSP, F-75005 Paris, France
| | - Erwan Bossavit
- Sorbonne Université, CNRS-UMR 7588, Institut des NanoSciences de Paris, INSP, F-75005 Paris, France
| | - Claire Abadie
- Sorbonne Université, CNRS-UMR 7588, Institut des NanoSciences de Paris, INSP, F-75005 Paris, France
| | - Yoann Prado
- Sorbonne Université, CNRS-UMR 7588, Institut des NanoSciences de Paris, INSP, F-75005 Paris, France
| | - Xiang Zhen Xu
- Laboratoire de Physique et d'Etude des Matériaux, ESPCI-Paris, PSL Research University, Sorbonne Université Univ Paris 06, CNRS UMR 8213, 10 rue Vauquelin, 75005 Paris, France
| | - Sandrine Ithurria
- Laboratoire de Physique et d'Etude des Matériaux, ESPCI-Paris, PSL Research University, Sorbonne Université Univ Paris 06, CNRS UMR 8213, 10 rue Vauquelin, 75005 Paris, France
| | - Grégory Vincent
- ONERA-The French Aerospace Lab, 6, chemin de la Vauve aux Granges, BP 80100, 91123 Palaiseau, France
| | - Christophe Coinon
- Univ. Lille, CNRS, Centrale Lille, Univ. Polytechnique Hauts-de-France, Junia-ISEN, UMR 8520-IEMN, F-59000 Lille, France
| | - Ludovic Desplanque
- Univ. Lille, CNRS, Centrale Lille, Univ. Polytechnique Hauts-de-France, Junia-ISEN, UMR 8520-IEMN, F-59000 Lille, France
| | - Emmanuel Lhuillier
- Sorbonne Université, CNRS-UMR 7588, Institut des NanoSciences de Paris, INSP, F-75005 Paris, France
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18
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Cavallo M, Bossavit E, Zhang H, Dabard C, Dang TH, Khalili A, Abadie C, Alchaar R, Mastrippolito D, Prado Y, Becerra L, Rosticher M, Silly MG, Utterback JK, Ithurria S, Avila J, Pierucci D, Lhuillier E. Mapping the Energy Landscape from a Nanocrystal-Based Field Effect Transistor under Operation Using Nanobeam Photoemission Spectroscopy. NANO LETTERS 2023; 23:1363-1370. [PMID: 36692377 DOI: 10.1021/acs.nanolett.2c04637] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
As the field of nanocrystal-based optoelectronics matures, more advanced techniques must be developed in order to reveal the electronic structure of nanocrystals, particularly with device-relevant conditions. So far, most of the efforts have been focused on optical spectroscopy, and electrochemistry where an absolute energy reference is required. Device optimization requires probing not only the pristine material but also the material in its actual environment (i.e., surrounded by a transport layer and an electrode, in the presence of an applied electric field). Here, we explored the use of photoemission microscopy as a strategy for operando investigation of NC-based devices. We demonstrate that the method can be applied to a variety of materials and device geometries. Finally, we show that it provides direct access to the metal-semiconductor interface band bending as well as the distance over which the gate effect propagates in field-effect transistors.
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Affiliation(s)
- Mariarosa Cavallo
- Sorbonne Université, CNRS, Institut des NanoSciences de Paris, INSP, F-75005 Paris, France
| | - Erwan Bossavit
- Sorbonne Université, CNRS, Institut des NanoSciences de Paris, INSP, F-75005 Paris, France
- Synchrotron SOLEIL, L'Orme des Merisiers, Départementale 128, 91190 Saint-Aubin, France
| | - Huichen Zhang
- Sorbonne Université, CNRS, Institut des NanoSciences de Paris, INSP, F-75005 Paris, France
| | - Corentin Dabard
- Laboratoire de Physique et d'Etude des Matériaux, ESPCI-Paris, PSL Research University, Sorbonne Université Univ Paris 06, CNRS UMR 8213, 10 rue Vauquelin, 75005 Paris, France
| | - Tung Huu Dang
- Sorbonne Université, CNRS, Institut des NanoSciences de Paris, INSP, F-75005 Paris, France
- Laboratoire de Physique de l'Ecole normale supérieure, ENS, Université PSL, CNRS, Sorbonne Université, Université Paris-Diderot, Sorbonne Paris Cité, 75005 Paris, France
| | - Adrien Khalili
- Sorbonne Université, CNRS, Institut des NanoSciences de Paris, INSP, F-75005 Paris, France
| | - Claire Abadie
- Sorbonne Université, CNRS, Institut des NanoSciences de Paris, INSP, F-75005 Paris, France
| | - Rodolphe Alchaar
- Sorbonne Université, CNRS, Institut des NanoSciences de Paris, INSP, F-75005 Paris, France
| | - Dario Mastrippolito
- Department of Physical and Chemical Sciences (DSFC), University of L'Aquila, Via Vetoio, 67100 L'Aquila, Italy
| | - Yoann Prado
- Sorbonne Université, CNRS, Institut des NanoSciences de Paris, INSP, F-75005 Paris, France
| | - Loïc Becerra
- Sorbonne Université, CNRS, Institut des NanoSciences de Paris, INSP, F-75005 Paris, France
| | - Michael Rosticher
- Laboratoire de Physique de l'Ecole normale supérieure, ENS, Université PSL, CNRS, Sorbonne Université, Université Paris-Diderot, Sorbonne Paris Cité, 75005 Paris, France
| | - Mathieu G Silly
- Synchrotron SOLEIL, L'Orme des Merisiers, Départementale 128, 91190 Saint-Aubin, France
| | - James K Utterback
- Sorbonne Université, CNRS, Institut des NanoSciences de Paris, INSP, F-75005 Paris, France
| | - Sandrine Ithurria
- Laboratoire de Physique et d'Etude des Matériaux, ESPCI-Paris, PSL Research University, Sorbonne Université Univ Paris 06, CNRS UMR 8213, 10 rue Vauquelin, 75005 Paris, France
| | - José Avila
- Synchrotron SOLEIL, L'Orme des Merisiers, Départementale 128, 91190 Saint-Aubin, France
| | - Debora Pierucci
- Centre de Nanosciences et de Nanotechnologies, CNRS, Univ. Paris-Sud, Université Paris-Saclay, 10 Boulevard Thomas Gobert, 91120 Palaiseau, France
| | - Emmanuel Lhuillier
- Sorbonne Université, CNRS, Institut des NanoSciences de Paris, INSP, F-75005 Paris, France
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19
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Xue X, Chen M, Luo Y, Qin T, Tang X, Hao Q. High-operating-temperature mid-infrared photodetectors via quantum dot gradient homojunction. LIGHT, SCIENCE & APPLICATIONS 2023; 12:2. [PMID: 36587039 PMCID: PMC9805449 DOI: 10.1038/s41377-022-01014-0] [Citation(s) in RCA: 19] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Revised: 10/10/2022] [Accepted: 10/11/2022] [Indexed: 06/17/2023]
Abstract
Due to thermal carriers generated by a narrow mid-infrared energy gap, cooling is always necessary to achieve ideal photodetection. In quantum dot (QD), the electron thermal generation should be reduced with quantum confinement in all three dimensions. As a result, there would be a great potential to realize high-operating-temperature (HOT) QD mid-IR photodetectors, though not yet achieved. Taking the advantages of colloidal nanocrystals' solution processability and precise doping control by surface dipoles, this work demonstrates a HOT mid-infrared photodetector with a QD gradient homojunction. The detector achieves background-limited performance with D* = 2.7 × 1011 Jones on 4.2 μm at 80 K, above 1011 Jones until 200 K, above 1010 Jones until 280 K, and 7.6 × 109 Jones on 3.5 μm at 300 K. The external quantum efficiency also achieves more than 77% with responsivity 2.7 A/W at zero bias. The applications such as spectrometers, chemical sensors, and thermal cameras, are also approved, which motivate interest in low-cost, solution-processed and high-performance mid-infrared photodetection beyond epitaxial growth bulk photodetectors.
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Affiliation(s)
- Xiaomeng Xue
- School of Optics and Photonics, Beijing Institute of Technology, No. 5 Zhongguancun South Street, Beijing, China
| | - Menglu Chen
- School of Optics and Photonics, Beijing Institute of Technology, No. 5 Zhongguancun South Street, Beijing, China.
- Beijing Key Laboratory for Precision Optoelectronic Measurement Instrument and Technology, Beijing, China.
- Yangtze Delta Region Academy of Beijing Institute of Technology, Beijing, China.
| | - Yuning Luo
- School of Optics and Photonics, Beijing Institute of Technology, No. 5 Zhongguancun South Street, Beijing, China
| | - Tianling Qin
- School of Optics and Photonics, Beijing Institute of Technology, No. 5 Zhongguancun South Street, Beijing, China
| | - Xin Tang
- School of Optics and Photonics, Beijing Institute of Technology, No. 5 Zhongguancun South Street, Beijing, China.
- Beijing Key Laboratory for Precision Optoelectronic Measurement Instrument and Technology, Beijing, China.
- Yangtze Delta Region Academy of Beijing Institute of Technology, Beijing, China.
| | - Qun Hao
- School of Optics and Photonics, Beijing Institute of Technology, No. 5 Zhongguancun South Street, Beijing, China.
- Beijing Key Laboratory for Precision Optoelectronic Measurement Instrument and Technology, Beijing, China.
- Yangtze Delta Region Academy of Beijing Institute of Technology, Beijing, China.
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20
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Bahmani Jalali H, De Trizio L, Manna L, Di Stasio F. Indium arsenide quantum dots: an alternative to lead-based infrared emitting nanomaterials. Chem Soc Rev 2022; 51:9861-9881. [PMID: 36408788 PMCID: PMC9743785 DOI: 10.1039/d2cs00490a] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Indexed: 11/22/2022]
Abstract
Colloidal quantum dots (QDs) emitting in the infrared (IR) are promising building blocks for numerous photonic, optoelectronic and biomedical applications owing to their low-cost solution-processability and tunable emission. Among them, lead- and mercury-based QDs are currently the most developed materials. Yet, due to toxicity issues, the scientific community is focusing on safer alternatives. In this regard, indium arsenide (InAs) QDs are one of the best candidates as they can absorb and emit light in the whole near infrared spectral range and they are RoHS-compliant, with recent trends suggesting that there is a renewed interest in this class of materials. This review focuses on colloidal InAs QDs and aims to provide an up-to-date overview spanning from their synthesis and surface chemistry to post-synthesis modifications. We provide a comprehensive overview from initial synthetic methods to the most recent developments on the ability to control the size, size distribution, electronic properties and carrier dynamics. Then, we describe doping and alloying strategies applied to InAs QDs as well as InAs based heterostructures. Furthermore, we present the state-of-the-art applications of InAs QDs, with a particular focus on bioimaging and field effect transistors. Finally, we discuss open challenges and future perspectives.
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Affiliation(s)
- Houman Bahmani Jalali
- Photonic Nanomaterials, Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy.
- Nanochemistry, Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
| | - Luca De Trizio
- Nanochemistry, Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
| | - Liberato Manna
- Nanochemistry, Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
| | - Francesco Di Stasio
- Photonic Nanomaterials, Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy.
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21
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Abadie C, Paggi L, Fabas A, Khalili A, Dang TH, Dabard C, Cavallo M, Alchaar R, Zhang H, Prado Y, Bardou N, Dupuis C, Xu XZ, Ithurria S, Pierucci D, Utterback JK, Fix B, Vincent G, Bouchon P, Lhuillier E. Helmholtz Resonator Applied to Nanocrystal-Based Infrared Sensing. NANO LETTERS 2022; 22:8779-8785. [PMID: 36190814 DOI: 10.1021/acs.nanolett.2c02769] [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
While the integration of nanocrystals as an active medium for optoelectronic devices progresses, light management strategies are becoming required. Over recent years, several photonic structures (plasmons, cavities, mirrors, etc.) have been coupled to nanocrystal films to shape the absorption spectrum, tune the directionality, and so on. Here, we explore a photonic equivalent of the acoustic Helmholtz resonator and propose a design that can easily be fabricated. This geometry combines a strong electromagnetic field magnification and a narrow channel width compatible with efficient charge conduction despite hopping conduction. At 80 K, the device reaches a responsivity above 1 A·W-1 and a detectivity above 1011 Jones (3 μm cutoff) while offering a significantly faster time-response than vertical geometry diodes.
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Affiliation(s)
- Claire Abadie
- DOTA, ONERA, Université Paris Saclay, F-91123 Palaiseau, France
- CNRS, Institut des NanoSciences de Paris, Sorbonne Université, 4 place jussieu, F-75005 Paris, France
| | - Laura Paggi
- DOTA, ONERA, Université Paris Saclay, F-91123 Palaiseau, France
| | - Alice Fabas
- DOTA, ONERA, Université Paris Saclay, F-91123 Palaiseau, France
| | - Adrien Khalili
- DOTA, ONERA, Université Paris Saclay, F-91123 Palaiseau, France
- CNRS, Institut des NanoSciences de Paris, Sorbonne Université, 4 place jussieu, F-75005 Paris, France
| | - Tung Huu Dang
- CNRS, Institut des NanoSciences de Paris, Sorbonne Université, 4 place jussieu, F-75005 Paris, France
| | - Corentin Dabard
- CNRS, Institut des NanoSciences de Paris, Sorbonne Université, 4 place jussieu, F-75005 Paris, France
| | - Mariarosa Cavallo
- CNRS, Institut des NanoSciences de Paris, Sorbonne Université, 4 place jussieu, F-75005 Paris, France
| | - Rodolphe Alchaar
- CNRS, Institut des NanoSciences de Paris, Sorbonne Université, 4 place jussieu, F-75005 Paris, France
| | - Huichen Zhang
- CNRS, Institut des NanoSciences de Paris, Sorbonne Université, 4 place jussieu, F-75005 Paris, France
| | - Yoann Prado
- CNRS, Institut des NanoSciences de Paris, Sorbonne Université, 4 place jussieu, F-75005 Paris, France
| | - Nathalie Bardou
- Centre de Nanosciences et de Nanotechnologies (C2N), CNRS, Université Paris-Saclay, 10 Boulevard Thomas Gobert, 91120 Palaiseau, France
| | - Christophe Dupuis
- Centre de Nanosciences et de Nanotechnologies (C2N), CNRS, Université Paris-Saclay, 10 Boulevard Thomas Gobert, 91120 Palaiseau, France
| | - Xiang Zhen Xu
- Laboratoire de Physique et d'Etude des Matériaux, ESPCI-Paris, PSL Research University, Sorbonne Université Univ Paris 06, CNRS UMR 8213, 10 rue Vauquelin 75005 Paris, France
| | - Sandrine Ithurria
- Laboratoire de Physique et d'Etude des Matériaux, ESPCI-Paris, PSL Research University, Sorbonne Université Univ Paris 06, CNRS UMR 8213, 10 rue Vauquelin 75005 Paris, France
| | - Debora Pierucci
- CNRS, Institut des NanoSciences de Paris, Sorbonne Université, 4 place jussieu, F-75005 Paris, France
| | - James K Utterback
- CNRS, Institut des NanoSciences de Paris, Sorbonne Université, 4 place jussieu, F-75005 Paris, France
| | - Baptiste Fix
- DOTA, ONERA, Université Paris Saclay, F-91123 Palaiseau, France
| | - Grégory Vincent
- DOTA, ONERA, Université Paris Saclay, F-91123 Palaiseau, France
| | - Patrick Bouchon
- DOTA, ONERA, Université Paris Saclay, F-91123 Palaiseau, France
| | - Emmanuel Lhuillier
- CNRS, Institut des NanoSciences de Paris, Sorbonne Université, 4 place jussieu, F-75005 Paris, France
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22
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Pierini S, Capitani F, Scimeca M, Kozlov S, Pierucci D, Alchaar R, Abadie C, Khalili A, Cavallo M, Dang TH, Zhang H, Bossavit E, Gréboval C, Avila J, Baptiste B, Klotz S, Sahu A, Feuillet-Palma C, Xu XZ, Ouerghi A, Ithurria S, Utterback JK, Sauvage S, Lhuillier E. Vanishing Confinement Regime in Terahertz HgTe Nanocrystals Studied under Extreme Conditions of Temperature and Pressure. J Phys Chem Lett 2022; 13:6919-6926. [PMID: 35867700 DOI: 10.1021/acs.jpclett.2c01636] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
While HgTe nanocrystals (NCs) in the mid-infrared region have reached a high level of maturity, their far-infrared counterparts remain far less studied, raising the need for an in-depth investigation of the material before efficient device integration can be considered. Here, we explore the effect of temperature and pressure on the structural, spectroscopic, and transport properties of HgTe NCs displaying an intraband absorption at 10 THz. The temperature leads to a very weak modulation of the spectrum as opposed to what was observed for strongly confined HgTe NCs. HgTe NC films present ambipolar conduction with a clear prevalence of electron conduction as confirmed by transistor and thermoelectric measurements. Under the application of pressure, the material undergoes phase transitions from the zinc blende to cinnabar phase and later to the rock salt phase which we reveal using joint X-ray diffraction and infrared spectroscopy measurements. We discuss how the pressure existence domain of each phase is affected by the particle size.
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Affiliation(s)
- Stefano Pierini
- Sorbonne Université, CNRS, Institut des NanoSciences de Paris, INSP, F-75005 Paris, France
- Université Paris-Saclay, CNRS, Centre de Nanosciences et de Nanotechnologies, CNRS, 10 Boulevard Thomas Gobert, 91120 Palaiseau, France
| | | | - Michael Scimeca
- Department of Chemical and Biomolecular Engineering, New York University, Brooklyn, New York 11201, United States
| | - Sergei Kozlov
- Laboratoire de Physique et d'Etude des Matériaux, ESPCI-Paris, PSL Research University, Sorbonne Université Univ Paris 06, CNRS UMR 8213, 10 rue Vauquelin, 75005 Paris, France
| | - Debora Pierucci
- Université Paris-Saclay, CNRS, Centre de Nanosciences et de Nanotechnologies, CNRS, 10 Boulevard Thomas Gobert, 91120 Palaiseau, France
| | - Rodolphe Alchaar
- Sorbonne Université, CNRS, Institut des NanoSciences de Paris, INSP, F-75005 Paris, France
| | - Claire Abadie
- Sorbonne Université, CNRS, Institut des NanoSciences de Paris, INSP, F-75005 Paris, France
| | - Adrien Khalili
- Sorbonne Université, CNRS, Institut des NanoSciences de Paris, INSP, F-75005 Paris, France
| | - Mariarosa Cavallo
- Sorbonne Université, CNRS, Institut des NanoSciences de Paris, INSP, F-75005 Paris, France
| | - Tung Huu Dang
- Sorbonne Université, CNRS, Institut des NanoSciences de Paris, INSP, F-75005 Paris, France
| | - Huichen Zhang
- Sorbonne Université, CNRS, Institut des NanoSciences de Paris, INSP, F-75005 Paris, France
| | - Erwan Bossavit
- Sorbonne Université, CNRS, Institut des NanoSciences de Paris, INSP, F-75005 Paris, France
| | - Charlie Gréboval
- Sorbonne Université, CNRS, Institut des NanoSciences de Paris, INSP, F-75005 Paris, France
| | - José Avila
- Synchrotron SOLEIL, Saint-Aubin, BP48, 91190 Saint-Aubin, France
| | - Benoit Baptiste
- Sorbonne Université, CNRS, Institut de Minéralogie, de Physique des Matériaux et de Cosmochimie, IMPMC, F-75005 Paris, France
| | - Stefan Klotz
- Sorbonne Université, CNRS, Institut de Minéralogie, de Physique des Matériaux et de Cosmochimie, IMPMC, F-75005 Paris, France
| | - Ayaskanta Sahu
- Department of Chemical and Biomolecular Engineering, New York University, Brooklyn, New York 11201, United States
| | - Cheryl Feuillet-Palma
- Laboratoire de Physique et d'Etude des Matériaux, ESPCI-Paris, PSL Research University, Sorbonne Université Univ Paris 06, CNRS UMR 8213, 10 rue Vauquelin, 75005 Paris, France
| | - Xiang Zhen Xu
- Laboratoire de Physique et d'Etude des Matériaux, ESPCI-Paris, PSL Research University, Sorbonne Université Univ Paris 06, CNRS UMR 8213, 10 rue Vauquelin, 75005 Paris, France
| | - Abdelkarim Ouerghi
- Université Paris-Saclay, CNRS, Centre de Nanosciences et de Nanotechnologies, CNRS, 10 Boulevard Thomas Gobert, 91120 Palaiseau, France
| | - Sandrine Ithurria
- Laboratoire de Physique et d'Etude des Matériaux, ESPCI-Paris, PSL Research University, Sorbonne Université Univ Paris 06, CNRS UMR 8213, 10 rue Vauquelin, 75005 Paris, France
| | - James K Utterback
- Sorbonne Université, CNRS, Institut des NanoSciences de Paris, INSP, F-75005 Paris, France
| | - Sebastien Sauvage
- Université Paris-Saclay, CNRS, Centre de Nanosciences et de Nanotechnologies, CNRS, 10 Boulevard Thomas Gobert, 91120 Palaiseau, France
| | - Emmanuel Lhuillier
- Sorbonne Université, CNRS, Institut des NanoSciences de Paris, INSP, F-75005 Paris, France
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23
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Toso S, Imran M, Mugnaioli E, Moliterni A, Caliandro R, Schrenker NJ, Pianetti A, Zito J, Zaccaria F, Wu Y, Gemmi M, Giannini C, Brovelli S, Infante I, Bals S, Manna L. Halide perovskites as disposable epitaxial templates for the phase-selective synthesis of lead sulfochloride nanocrystals. Nat Commun 2022; 13:3976. [PMID: 35803933 PMCID: PMC9270429 DOI: 10.1038/s41467-022-31699-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Accepted: 06/29/2022] [Indexed: 11/11/2022] Open
Abstract
Colloidal chemistry grants access to a wealth of materials through simple and mild reactions. However, even few elements can combine in a variety of stoichiometries and structures, potentially resulting in impurities or even wrong products. Similar issues have been long addressed in organic chemistry by using reaction-directing groups, that are added to a substrate to promote a specific product and are later removed. Inspired by such approach, we demonstrate the use of CsPbCl3 perovskite nanocrystals to drive the phase-selective synthesis of two yet unexplored lead sulfochlorides: Pb3S2Cl2 and Pb4S3Cl2. When homogeneously nucleated in solution, lead sulfochlorides form Pb3S2Cl2 nanocrystals. Conversely, the presence of CsPbCl3 triggers the formation of Pb4S3Cl2/CsPbCl3 epitaxial heterostructures. The phase selectivity is guaranteed by the continuity of the cationic subnetwork across the interface, a condition not met in a hypothetical Pb3S2Cl2/CsPbCl3 heterostructure. The perovskite domain is then etched, delivering phase-pure Pb4S3Cl2 nanocrystals that could not be synthesized directly. Phase-selective approaches, such using reaction-directing groups, are often seen in traditional organic chemistry and catalysis. Here authors use perovskite nanocrystals as disposable templates to drive the phase-selective synthesis of two colloidal nanomaterials, the lead sulfohalides Pb3S2Cl2 and Pb4S3Cl2.
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Affiliation(s)
- Stefano Toso
- Department of Nanochemistry, Istituto Italiano di Tecnologia, Via Morego 30, 16163, Genova, Italy.,International Doctoral Program in Science, Università Cattolica del Sacro Cuore, 25121, Brescia, Italy
| | - Muhammad Imran
- Department of Nanochemistry, Istituto Italiano di Tecnologia, Via Morego 30, 16163, Genova, Italy.
| | - Enrico Mugnaioli
- Electron Crystallography, Center for Materials Interfaces, Istituto Italiano di Tecnologia, Viale Rinaldo Piaggio 34, 56025, Pontedera, Italy
| | - Anna Moliterni
- Istituto di Cristallografia - Consiglio Nazionale delle Ricerche (IC-CNR), Via Giovanni Amendola 122/O, 70126, Bari, Italy.
| | - Rocco Caliandro
- Istituto di Cristallografia - Consiglio Nazionale delle Ricerche (IC-CNR), Via Giovanni Amendola 122/O, 70126, Bari, Italy
| | - Nadine J Schrenker
- Electron Microscopy for Materials Science (EMAT) and NANOlab Center of Excellence, University of Antwerp, Groenenborgerlaan 171, 2020, Antwerp, Belgium
| | - Andrea Pianetti
- Dipartimento di Scienza dei Materiali, Università degli Studi di Milano-Bicocca, Via Roberto Cozzi 55, 20125, Milano, Italy
| | - Juliette Zito
- Department of Nanochemistry, Istituto Italiano di Tecnologia, Via Morego 30, 16163, Genova, Italy.,Dipartimento di Chimica e Chimica Industriale, Università degli Studi di Genova, Via Dodecaneso 31, 16146, Genova, Italy
| | - Francesco Zaccaria
- Department of Nanochemistry, Istituto Italiano di Tecnologia, Via Morego 30, 16163, Genova, Italy
| | - Ye Wu
- Department of Nanochemistry, Istituto Italiano di Tecnologia, Via Morego 30, 16163, Genova, Italy
| | - Mauro Gemmi
- Electron Crystallography, Center for Materials Interfaces, Istituto Italiano di Tecnologia, Viale Rinaldo Piaggio 34, 56025, Pontedera, Italy.
| | - Cinzia Giannini
- Istituto di Cristallografia - Consiglio Nazionale delle Ricerche (IC-CNR), Via Giovanni Amendola 122/O, 70126, Bari, Italy
| | - Sergio Brovelli
- Dipartimento di Scienza dei Materiali, Università degli Studi di Milano-Bicocca, Via Roberto Cozzi 55, 20125, Milano, Italy.
| | - Ivan Infante
- Department of Nanochemistry, Istituto Italiano di Tecnologia, Via Morego 30, 16163, Genova, Italy.
| | - Sara Bals
- Electron Microscopy for Materials Science (EMAT) and NANOlab Center of Excellence, University of Antwerp, Groenenborgerlaan 171, 2020, Antwerp, Belgium.
| | - Liberato Manna
- Department of Nanochemistry, Istituto Italiano di Tecnologia, Via Morego 30, 16163, Genova, Italy.
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24
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Bera R, Choi D, Jung YS, Song H, Jeong KS. Intraband Transitions of Nanocrystals Transforming from Lead Selenide to Self-doped Silver Selenide Quantum Dots by Cation Exchange. J Phys Chem Lett 2022; 13:6138-6146. [PMID: 35759614 DOI: 10.1021/acs.jpclett.2c01179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
In search of heavy metal-free mid-IR active colloidal materials, self-doped silver selenide colloidal quantum dots (CQDs) can be an alternative offering tunable mid-IR wavelength with a narrow bandwidth. One of the challenges in the study of the intraband transition is developing a method to widen the intraband transition energy range as well as reducing the toxicity of the materials. Here, we present AgxSe (x > 2) CQDs exhibiting an intraband transition up to 0.39 eV, produced by the cation exchange (CE) method from PbSe CQDs. The major electronic transition efficiently changes from the SWIR band gap of PbSe CQDs to the mid-IR intraband transition of the AgxSe CQDs by the CE. The intraband exciton is verified by examining the absorption and emission of the CE AgxSe CQDs as well as their applications on electrochemical mid-IR luminescence and mid-IR intraband photodetectors.
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Affiliation(s)
- Rajesh Bera
- Department of Chemistry, Korea University, Seoul 02841, Republic of Korea
- Center for Molecular Spectroscopy and Dynamics, Institute for Basic Science (IBS), Korea University, Seoul 02841, Republic of Korea
| | - Dongsun Choi
- Department of Chemistry, Korea University, Seoul 02841, Republic of Korea
| | - Yoon Seo Jung
- Department of Chemistry, Korea University, Seoul 02841, Republic of Korea
| | - Haemin Song
- Department of Chemistry, Korea University, Seoul 02841, Republic of Korea
| | - Kwang Seob Jeong
- Department of Chemistry, Korea University, Seoul 02841, Republic of Korea
- Center for Molecular Spectroscopy and Dynamics, Institute for Basic Science (IBS), Korea University, Seoul 02841, Republic of Korea
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25
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O’Neill SW, Krauss TD. Synthetic Mechanisms in the Formation of SnTe Nanocrystals. J Am Chem Soc 2022; 144:6251-6260. [PMID: 35348326 PMCID: PMC9011400 DOI: 10.1021/jacs.1c11697] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
![]()
Infrared active colloidal
semiconducting nanocrystals (NCs) are
important for applications including photodetectors and photovoltaics.
While much research has been conducted on nanocrystalline materials
such as the Pb and Hg chalcogenides, less toxic alternatives such
as SnTe have been far less explored. Previous synthetic work on SnTe
NCs have characterized photophysical properties of the nanoparticles.
This study focuses on understanding the fundamental chemical mechanisms
involved in SnTe NC formation, with the aim to improve synthetic outcomes.
The solvent oleylamine, common to all SnTe syntheses, is found to
form a highly reactive, heteroleptic Sn-oleylamine precursor that
is the primary molecular Sn species initiating NC formation and growth.
Further, the capping ligand oleic acid (OA) reacts with this amine
to produce tin oxide (SnOx), facilitating
the formation of an NC SnOx shell. Therefore,
the use of OA during synthesis is counterproductive to the formation
of stoichiometric SnTe nanoparticles. The knowledge of chemical reaction
mechanisms creates a foundation for the production of high-quality,
unoxidized, and stoichiometric SnTe NCs.
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Affiliation(s)
- Sean W. O’Neill
- Materials Science Program, University of Rochester, 4011 Wegmans Hall, Rochester, New York 14627, United States
| | - Todd D. Krauss
- Materials Science Program, University of Rochester, 4011 Wegmans Hall, Rochester, New York 14627, United States
- Department of Chemistry, University of Rochester, 404 Hutchison Hall, Rochester, New York 14627, United States
- Institute of Optics, University of Rochester, 480 Intercampus Drive, Rochester, New York 14627, United States
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26
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Ruppert M, Bui H, Sagar LK, Geiregat P, Hens Z, Bester G, Huse N. Intraband dynamics of mid-infrared HgTe quantum dots. NANOSCALE 2022; 14:4123-4130. [PMID: 34874046 DOI: 10.1039/d1nr07007j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Femtosecond pump-probe spectroscopy reveals ultrafast carrier dynamics in mid-infrared (MIR) colloidal HgTe nanoparticles with a bandgap of 2.5 μm. We observe intraband relaxation processes after photoexcitation ranging from resonant excitation up to the multi-exciton generation (MEG) regime by identifying initially excited states from atomic effective pseudopotential calculations. Our study elucidates the earliest dynamics below 10 ps in this technologically relevant material. With increasing photon energy, we find carrier relaxation times as long as 2.1 ps in the MEG regime close to the ionization threshold of the particles. For all photon energies, we extract a constant mean carrier energy dissipation rate of 0.36 eV ps-1 from which we infer negligible impact of the density of states on carrier cooling.
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Affiliation(s)
- Matthias Ruppert
- Institute for Nanostructure and Solid-State Physics, Department of Physics, University of Hamburg and Center for Free-Electron Laser Science, Luruper Chaussee 149, 22761 Hamburg, Germany.
| | - Hanh Bui
- Physical Chemistry and Physics departments, University of Hamburg, Luruper Chaussee 149, 22761 Hamburg, Germany
- The Hamburg Centre for Ultrafast Imaging, University of Hamburg, Luruper Chaussee, 149, 22761 Hamburg, Germany
| | - Laxmi Kishore Sagar
- Physics and Chemistry of Nanostructures, Department of Chemistry, Ghent University, Krijgslaan 281 - S3, B-9000 Gent, Belgium
- Center for Nano and Biophotonics, Ghent University, Technologiepark Zwijnaarde 15, B-9052 Gent, Belgium
| | - Pieter Geiregat
- Physics and Chemistry of Nanostructures, Department of Chemistry, Ghent University, Krijgslaan 281 - S3, B-9000 Gent, Belgium
- Center for Nano and Biophotonics, Ghent University, Technologiepark Zwijnaarde 15, B-9052 Gent, Belgium
| | - Zeger Hens
- Physics and Chemistry of Nanostructures, Department of Chemistry, Ghent University, Krijgslaan 281 - S3, B-9000 Gent, Belgium
- Center for Nano and Biophotonics, Ghent University, Technologiepark Zwijnaarde 15, B-9052 Gent, Belgium
| | - Gabriel Bester
- Physical Chemistry and Physics departments, University of Hamburg, Luruper Chaussee 149, 22761 Hamburg, Germany
- The Hamburg Centre for Ultrafast Imaging, University of Hamburg, Luruper Chaussee, 149, 22761 Hamburg, Germany
| | - Nils Huse
- Institute for Nanostructure and Solid-State Physics, Department of Physics, University of Hamburg and Center for Free-Electron Laser Science, Luruper Chaussee 149, 22761 Hamburg, Germany.
- The Hamburg Centre for Ultrafast Imaging, University of Hamburg, Luruper Chaussee, 149, 22761 Hamburg, Germany
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27
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Bundulis A, Shuklov IA, Kim VV, Mardini AA, Grube J, Alnis J, Lizunova AA, Razumov VF, Ganeev RA. Nonlinear Absorption and Refraction of Picosecond and Femtosecond Pulses in HgTe Quantum Dot Films. NANOMATERIALS 2021; 11:nano11123351. [PMID: 34947700 PMCID: PMC8704858 DOI: 10.3390/nano11123351] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/17/2021] [Revised: 12/07/2021] [Accepted: 12/07/2021] [Indexed: 11/16/2022]
Abstract
We report measurements of the saturated intensities, saturable absorption, and nonlinear refraction in 70-nm thick films containing 4 nm HgTe quantum dots. We demonstrate strong nonlinear refraction and saturable absorption in the thin films using tunable picosecond and femtosecond pulses. Studies were carried out using tunable laser pulses in the range of 400-1100 nm. A significant variation of the nonlinear refraction along this spectral range was demonstrated. The maximal values of the nonlinear absorption coefficients and nonlinear refractive indices determined within the studied wavelength range were -2.4 × 10-5 cm2 W-1 (in the case of 28 ps, 700 nm probe pulses) and -3 × 10-9 cm2 W-1 (in the case of 28 ps, 400 nm probe pulses), respectively. Our studies show that HgTe quantum dots can be used in different fields e.g., as efficient emitters of high-order harmonics of ultrashort laser pulses or as laser mode-lockers.
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Affiliation(s)
- Arturs Bundulis
- Institute of Solid State Physics, University of Latvia, Kengaraga 8, LV-1063 Riga, Latvia; (A.B.); (J.G.)
| | - Ivan A. Shuklov
- Moscow Institute of Physics and Technology, National Research University, Dolgoprudny 141701, Russia; (A.A.M.); (A.A.L.); (V.F.R.)
- Correspondence: (I.A.S.); (R.A.G.)
| | - Vyacheslav V. Kim
- Laboratory of Nonlinear Optics, University of Latvia, Jelgavas 3, LV-1004 Riga, Latvia;
| | - Alaa A. Mardini
- Moscow Institute of Physics and Technology, National Research University, Dolgoprudny 141701, Russia; (A.A.M.); (A.A.L.); (V.F.R.)
- Department of Chemistry, Faculty of Science, Damascus University, Damascus P.O. Box 30621, Syria
| | - Jurgis Grube
- Institute of Solid State Physics, University of Latvia, Kengaraga 8, LV-1063 Riga, Latvia; (A.B.); (J.G.)
| | - Janis Alnis
- Quantum Optics Laboratory, Institute of Atomic Physics and Spectroscopy, University of Latvia, Jelgavas 3, LV-1004 Riga, Latvia;
| | - Anna A. Lizunova
- Moscow Institute of Physics and Technology, National Research University, Dolgoprudny 141701, Russia; (A.A.M.); (A.A.L.); (V.F.R.)
| | - Vladimir F. Razumov
- Moscow Institute of Physics and Technology, National Research University, Dolgoprudny 141701, Russia; (A.A.M.); (A.A.L.); (V.F.R.)
- Institute of Problems of Chemical Physics, Russian Academy of Sciences, Chernogolovka 142432, Russia
| | - Rashid A. Ganeev
- Laboratory of Nonlinear Optics, University of Latvia, Jelgavas 3, LV-1004 Riga, Latvia;
- Department of Physics, Voronezh State University, Voronezh 394006, Russia
- Correspondence: (I.A.S.); (R.A.G.)
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Dang TH, Vasanelli A, Todorov Y, Sirtori C, Prado Y, Chu A, Gréboval C, Khalili A, Cruguel H, Delerue C, Vincent G, Lhuillier E. Bias Tunable Spectral Response of Nanocrystal Array in a Plasmonic Cavity. NANO LETTERS 2021; 21:6671-6677. [PMID: 34339191 DOI: 10.1021/acs.nanolett.1c02193] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Nanocrystals (NCs) have gained considerable attention for their broadly tunable absorption from the UV to the THz range. Nevertheless, their optical features suffer from a lack of tunability once integrated into optoelectronic devices. Here, we show that bias tunable aspectral response is obtained by coupling a HgTe NC array with a plasmonic resonator. Up to 15 meV blueshift can be achieved from a 3 μm absorbing wavelength structure under a 3 V bias voltage when the NC exciton is coupled with a mode of the resonator. We demonstrate that the blueshift arises from the interplay between hopping transport and inhomogeneous absorption due to the presence of the photonic structure. The observed tunable spectral response is qualitatively reproduced in simulation by introducing a bias-dependent diffusion length in the charge transport. This work expands the realm of existing NC-based devices and paves the way toward light modulators.
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Affiliation(s)
- Tung Huu Dang
- Laboratoire de Physique de l'Ecole Normale Supérieure, ENS, Université PSL, CNRS, Sorbonne Université, Université de Paris, 75005 Paris, France
- Sorbonne Université, CNRS, Institut des NanoSciences de Paris, INSP, 75005 Paris, France
| | - Angela Vasanelli
- Laboratoire de Physique de l'Ecole Normale Supérieure, ENS, Université PSL, CNRS, Sorbonne Université, Université de Paris, 75005 Paris, France
| | - Yanko Todorov
- Laboratoire de Physique de l'Ecole Normale Supérieure, ENS, Université PSL, CNRS, Sorbonne Université, Université de Paris, 75005 Paris, France
| | - Carlo Sirtori
- Laboratoire de Physique de l'Ecole Normale Supérieure, ENS, Université PSL, CNRS, Sorbonne Université, Université de Paris, 75005 Paris, France
| | - Yoann Prado
- Sorbonne Université, CNRS, Institut des NanoSciences de Paris, INSP, 75005 Paris, France
| | - Audrey Chu
- Sorbonne Université, CNRS, Institut des NanoSciences de Paris, INSP, 75005 Paris, France
- ONERA - The French Aerospace Lab, 6, chemin de la Vauve aux Granges, BP 80100, 91123 Palaiseau, France
| | - Charlie Gréboval
- Sorbonne Université, CNRS, Institut des NanoSciences de Paris, INSP, 75005 Paris, France
| | - Adrien Khalili
- Sorbonne Université, CNRS, Institut des NanoSciences de Paris, INSP, 75005 Paris, France
| | - Herve Cruguel
- Sorbonne Université, CNRS, Institut des NanoSciences de Paris, INSP, 75005 Paris, France
| | - Christophe Delerue
- Univ. Lille, CNRS, Centrale Lille, Univ. Polytechnique Hauts-de-France, Junia, UMR 8520 - IEMN, F-59000 Lille, France
| | - Gregory Vincent
- ONERA - The French Aerospace Lab, 6, chemin de la Vauve aux Granges, BP 80100, 91123 Palaiseau, France
| | - Emmanuel Lhuillier
- Sorbonne Université, CNRS, Institut des NanoSciences de Paris, INSP, 75005 Paris, France
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29
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Khan MD, Opallo M, Revaprasadu N. Colloidal synthesis of metal chalcogenide nanomaterials from metal-organic precursors and capping ligand effect on electrocatalytic performance: progress, challenges and future perspectives. Dalton Trans 2021; 50:11347-11359. [PMID: 34369529 DOI: 10.1039/d1dt01742j] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Renewable and sustainable functional nanomaterials, which can be employed in alternative green energy sources, are highly desirable. Transition metal chalcogenides are potential catalysts for processes resulting in energy generation and storage. In order to optimize their catalytic performance, high phase purity and precise control over shape and size are indispensable. Metal-organic precursors with pre-formed bonds between the metal and the chalcogenide atoms are advantageous in synthesizing phase pure transition metal chalcogenides with controlled shape and sizes. This can be achieved by the decomposition of metal-organic precursors in the presence of suitable surfactants/capping agents. However, the recent studies on electrocatalysis at the nanoscale level reveal that the capping agents attached to their surface have a detrimental effect on their efficiency. The removal of surfactants from active sites to obtain bare surface nanoparticles is necessary to enhance catalytic activity. Herein, we have discussed the properties of different metal-organic precursors and the role of surfactants in the colloidal synthesis of metal chalcogenide nanomaterials. Moreover, the effect of surfactants on their electrocatalytic performance, the commonly used strategies for removing surfactants from the surface of nanomaterials and the future perspectives are reviewed.
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Affiliation(s)
- Malik Dilshad Khan
- Institute of Physical Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224, Warsaw, Poland
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30
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Chee SS, Gréboval C, Magalhaes DV, Ramade J, Chu A, Qu J, Rastogi P, Khalili A, Dang TH, Dabard C, Prado Y, Patriarche G, Chaste J, Rosticher M, Bals S, Delerue C, Lhuillier E. Correlating Structure and Detection Properties in HgTe Nanocrystal Films. NANO LETTERS 2021; 21:4145-4151. [PMID: 33956449 DOI: 10.1021/acs.nanolett.0c04346] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
HgTe nanocrystals (NCs) enable broadly tunable infrared absorption, now commonly used to design light sensors. This material tends to grow under multipodic shapes and does not present well-defined size distributions. Such point generates traps and reduces the particle packing, leading to a reduced mobility. It is thus highly desirable to comprehensively explore the effect of the shape on their performance. Here, we show, using a combination of electron tomography and tight binding simulations, that the charge dissociation is strong within HgTe NCs, but poorly shape dependent. Then, we design a dual-gate field-effect-transistor made of tripod HgTe NCs and use it to generate a planar p-n junction, offering more tunability than its vertical geometry counterpart. Interestingly, the performance of the tripods is higher than sphere ones, and this can be correlated with a stronger Te excess in the case of sphere shapes which is responsible for a higher hole trap density.
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Affiliation(s)
- Sang-Soo Chee
- CNRS, Institut des NanoSciences de Paris, Sorbonne Université, 4 place Jussieu, 75005 Paris, France
- Nanomaterials and Nanotechnology Center, Korea Institute of Ceramic Engineering and Technology (KICET), 101 Soho-ro, 52851 Jinju-si, Republic of Korea
| | - Charlie Gréboval
- CNRS, Institut des NanoSciences de Paris, Sorbonne Université, 4 place Jussieu, 75005 Paris, France
| | - Debora Vale Magalhaes
- Electron Microscopy for Materials Science, University of Antwerp, Groenenborgerlaan 171, B-2020 Antwerp, Belgium
- NANOlab Center of Excellence, University of Antwerp, B-2020 Antwerp, Belgium
| | - Julien Ramade
- Electron Microscopy for Materials Science, University of Antwerp, Groenenborgerlaan 171, B-2020 Antwerp, Belgium
- NANOlab Center of Excellence, University of Antwerp, B-2020 Antwerp, Belgium
| | - Audrey Chu
- CNRS, Institut des NanoSciences de Paris, Sorbonne Université, 4 place Jussieu, 75005 Paris, France
| | - Junling Qu
- CNRS, Institut des NanoSciences de Paris, Sorbonne Université, 4 place Jussieu, 75005 Paris, France
| | - Prachi Rastogi
- CNRS, Institut des NanoSciences de Paris, Sorbonne Université, 4 place Jussieu, 75005 Paris, France
| | - Adrien Khalili
- CNRS, Institut des NanoSciences de Paris, Sorbonne Université, 4 place Jussieu, 75005 Paris, France
| | - Tung Huu Dang
- CNRS, Institut des NanoSciences de Paris, Sorbonne Université, 4 place Jussieu, 75005 Paris, France
- Laboratoire de Physique de l'Ecole normale supérieure, ENS, Université PSL, CNRS, Sorbonne Université, Université Paris-Diderot, Sorbonne Paris Cité, 75005 Paris, France
| | - Corentin Dabard
- CNRS, Institut des NanoSciences de Paris, Sorbonne Université, 4 place Jussieu, 75005 Paris, France
| | - Yoann Prado
- CNRS, Institut des NanoSciences de Paris, Sorbonne Université, 4 place Jussieu, 75005 Paris, France
| | - Gilles Patriarche
- Centre de Nanosciences et de Nanotechnologies, CNRS, Université Paris-Saclay, C2N, Palaiseau 2110, France
| | - Julien Chaste
- Centre de Nanosciences et de Nanotechnologies, CNRS, Université Paris-Saclay, C2N, Palaiseau 2110, France
| | - Michael Rosticher
- Laboratoire de Physique de l'Ecole normale supérieure, ENS, Université PSL, CNRS, Sorbonne Université, Université Paris-Diderot, Sorbonne Paris Cité, 75005 Paris, France
| | - Sara Bals
- Electron Microscopy for Materials Science, University of Antwerp, Groenenborgerlaan 171, B-2020 Antwerp, Belgium
- NANOlab Center of Excellence, University of Antwerp, B-2020 Antwerp, Belgium
| | - Christophe Delerue
- Université Lille, CNRS, Centrale Lille, Université Polytechnique Hauts-de-France, Junia, UMR 8520 - IEMN F-59000 Lille, France
| | - Emmanuel Lhuillier
- CNRS, Institut des NanoSciences de Paris, Sorbonne Université, 4 place Jussieu, 75005 Paris, France
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