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Kim DH, Park SW, Choi JY, Lee HJ, Oh JS, Joo JM, Kim TG. Phase Change Heterostructure Memory with Oxygen-Doped Sb 2Te 3 Layers for Improved Durability and Reliability through Nano crystalline Island Formation. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2312249. [PMID: 38618929 DOI: 10.1002/smll.202312249] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/29/2023] [Revised: 02/27/2024] [Indexed: 04/16/2024]
Abstract
Phase-change random access memory represents a notable advancement in nonvolatile memory technology; however, it faces challenges in terms of thermal stability and reliability, hindering its broader application. To mitigate these issues, doping and structural modification techniques such as phase-change heterostructures (PCH) are widely studied. Although doping typically enhances thermal stability, it can adversely affect the switching speed. Structural modifications such as PCH have struggled to sustain stable performance under high atmospheric conditions. In this study, these challenges are addressed by synergizing oxygen-doped Sb2Te3 (OST) with PCH technology. This study presents a novel approach in which OST significantly improves the crystallization temperature, power efficiency, and cyclability. Subsequently, the integration of the PCH technology bolsters the switching speed and further amplifies the device's reliability and endurance by refining the grain size (≈7 nm). The resultant OST-PCH devices exhibit exceptional performance metrics, including a drift coefficient of 0.003 in the RESET state, endurance of ≈4 × 108 cycles, an switching speed of 300 ns, and 67.6 pJ of RESET energy. These findings suggest that the OST-PCH devices show promise for integration into embedded systems, such as those found in automotive applications and Internet of Things devices.
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Affiliation(s)
- Dong Hyun Kim
- School of Electrical Engineering, Korea University, Seongbuk-gu, Seoul, 02841, South Korea
| | - Seung Woo Park
- School of Electrical Engineering, Korea University, Seongbuk-gu, Seoul, 02841, South Korea
| | - Jun Young Choi
- School of Electrical Engineering, Korea University, Seongbuk-gu, Seoul, 02841, South Korea
| | - Ho Jin Lee
- School of Electrical Engineering, Korea University, Seongbuk-gu, Seoul, 02841, South Korea
| | - Jin Suk Oh
- School of Electrical Engineering, Korea University, Seongbuk-gu, Seoul, 02841, South Korea
| | - Jong Min Joo
- School of Electrical Engineering, Korea University, Seongbuk-gu, Seoul, 02841, South Korea
| | - Tae Geun Kim
- School of Electrical Engineering, Korea University, Seongbuk-gu, Seoul, 02841, South Korea
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2
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Saxena A, Awana VPS. Growth and characterization of the magnetic topological insulator candidate Mn 2Sb 2Te 5. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2023; 36:085704. [PMID: 37963405 DOI: 10.1088/1361-648x/ad0c77] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Accepted: 11/14/2023] [Indexed: 11/16/2023]
Abstract
We report a new member of topological insulator (TI) family i.e. Mn2Sb2Te5, which belongs to MnSb2Te4family and is a sister compound of Mn2Bi2Te5. An antiferromagnetic layer of (MnTe)2has been inserted between quintuple layers of Sb2Te3. The crystal structure and chemical composition of as grown Mn2Sb2Te5crystal is experimentally visualized by single crystal x-ray diffractometer and field emission scanning electron microscopy. The valence states of individual constituents i.e., Mn, Sb and Te are ascertained through x-ray photo electron spectroscopy. Different vibrational modes of Mn2Sb2Te5are elucidated through Raman spectroscopy. Temperature-dependent resistivityρ(T) of Mn2Sb2Te5resulted in metallic behavior of the same with an up-turn at below around 20 K. Further, the magneto-transportρ(T) vsHof the same exhibited negative magneto-resistance (MR) at low temperatures below 20 K and small positive at higher temperatures. The low Temperature -ve MR starts decreasing at higher fields. The magnetic moment as a function of temperature at 100 Oe and 1 kOe showed anti-ferromagnetism (AFM) like down turn cusps at around 20 K and 10 K. The isothermal magnetization showed AFM like loops with some embedded ferromagnetic/paramagnetic (PM) domains at 5 K and purely PM like at 100 K. The studied Mn2Sb2Te5clearly exhibited the characteristics of a magnetic TI.
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Affiliation(s)
- Ankush Saxena
- Academy of Scientific & Innovative Research (AcSIR), Ghaziabad 201002, India
- CSIR- National Physical Laboratory, New Delhi 110012, India
| | - V P S Awana
- Academy of Scientific & Innovative Research (AcSIR), Ghaziabad 201002, India
- CSIR- National Physical Laboratory, New Delhi 110012, India
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3
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Chen Z, Sui X, Li Z, Li Y, Liu X, Zhang Y. Quantum-sized topological insulators/semimetals enable ultrahigh and broadband saturable absorption. NANOSCALE HORIZONS 2023; 8:1686-1694. [PMID: 37702034 DOI: 10.1039/d3nh00282a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/14/2023]
Abstract
Two-dimensional topological insulators/semimetals have recently attracted much attention. However, quantum-sized topological insulators/semimetals with intrinsic characteristics have never been reported before. Herein, we report the high-yield production of topological insulator (i.e., Bi2Se3 and Sb2Te3) and semimetal (i.e., TiS2) quantum sheets (QSs) with monolayer structures and sub-4 nm lateral sizes. Both linear and nonlinear optical performances of the QSs are investigated. The QS dispersions present remarkable photoluminescence with excitation wavelength-, concentration-, and solvent-dependence. The solution-processed QSs-poly(methyl methacrylate) (PMMA) hybrid thin films demonstrate exceptional nonlinear saturation absorption (NSA). Particularly, Bi2Se3 QSs-PMMA enables record-high NSA performance with a broadband feature. Specifically, the (absolute) modulation depths up to 71.6 and 72.4% and saturation intensities down to 1.52 and 0.49 MW cm-2 are achieved at 532 and 800 nm, respectively. Such a phenomenal NSA performance would greatly facilitate their applications in mode-locked lasers and related fields.
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Affiliation(s)
- Zhexue Chen
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing 100190, P. R. China.
- University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Xinyu Sui
- University of Chinese Academy of Sciences, Beijing 100049, P. R. China
- CAS Key Laboratory of Standardization and Measurement for Nanotechnology, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing 100190, P. R. China
| | - Zhangqiang Li
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing 100190, P. R. China.
- University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Yueqi Li
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing 100190, P. R. China.
- University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Xinfeng Liu
- University of Chinese Academy of Sciences, Beijing 100049, P. R. China
- CAS Key Laboratory of Standardization and Measurement for Nanotechnology, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing 100190, P. R. China
| | - Yong Zhang
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing 100190, P. R. China.
- University of Chinese Academy of Sciences, Beijing 100049, P. R. China
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4
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Kim TH, Park SW, Lee HJ, Kim DH, Choi JY, Kim TG. Effect of Transition Metal Dichalcogenide Based Confinement Layers on the Performance of Phase-Change Heterostructure Memory. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2303659. [PMID: 37485593 DOI: 10.1002/smll.202303659] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Revised: 07/04/2023] [Indexed: 07/25/2023]
Abstract
Phase-change random-access memory is a promising non-volatile memory technology. However repeated phase-change operations can cause durability issues owing to defects formed by long-distance atom diffusion. To mitigate these issues, phase-change heterostructure (PCH) devices with confinement material (CM) layers based on transition metal dichalcogenides (TMDs) such as TiTe2 have been proposed. This study implements PCH devices with additional TMDs, including NiTe2 and MoTe2 , alongside TiTe2 , and analyzes their characteristics by examining the differences in the CM layers. The results show that the NiTe2 -based PCH device demonstrates a RESET current of 1.4 mA, 38% lower than that of the TiTe2 -based device, enabling low-power operation. Furthermore, the MoTe2 -based PCH device exhibits a cycling endurance exceeding 107 cycles, a five-fold improvement in durability compare with the TiTe2 -based device. The performance differences observe in each PCH device can be attributed to the variation in the material properties, such as the cohesive energy and electrical conductivity, of the TMDs used as the CM layer. These results provide critical clues to improve the performance and reliability of conventional PCH memory devices.
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Affiliation(s)
- Tae Ho Kim
- School of Electrical Engineering, Korea University, Seoul, Seongbuk-gu, 02841, South Korea
| | - Seung Woo Park
- School of Electrical Engineering, Korea University, Seoul, Seongbuk-gu, 02841, South Korea
| | - Ho Jin Lee
- School of Electrical Engineering, Korea University, Seoul, Seongbuk-gu, 02841, South Korea
| | - Dong Hyun Kim
- School of Electrical Engineering, Korea University, Seoul, Seongbuk-gu, 02841, South Korea
| | - Jun Young Choi
- School of Electrical Engineering, Korea University, Seoul, Seongbuk-gu, 02841, South Korea
| | - Tae Geun Kim
- School of Electrical Engineering, Korea University, Seoul, Seongbuk-gu, 02841, South Korea
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5
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Zhuravlev OE, Rasskazova NY, Suratova ES, Karpenkov AY. Synthesis of Zinc Sulfide Nanoparticles Using Pyridinium Ionic Liquids. RUSS J GEN CHEM+ 2023. [DOI: 10.1134/s1070363223020160] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/03/2023]
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6
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Shupenev AE, Melnik SL, Korshunov IS, Karpoukhin SD, Sazonkin SG, Grigor’yants AG. Growth Features of Bi 2Te 3Sb 1.5 Films on Polyimide Substrates Obtained by Pulsed Laser Deposition. MATERIALS (BASEL, SWITZERLAND) 2022; 15:8993. [PMID: 36556799 PMCID: PMC9788408 DOI: 10.3390/ma15248993] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Revised: 12/09/2022] [Accepted: 12/13/2022] [Indexed: 06/17/2023]
Abstract
Thermoelectric materials in the form of thin films are used to create a wide variety of sensors and devices. The efficiency of these devices depends on the quality and efficiency of the thermoelectric materials obtained in the form of thin films. Earlier, we demonstrated that it is possible to obtain high-performance Bi2Te3Sb1.5 films less than 1 μm thick on polyimide substrates by using the PLD method, and determined optimal growth conditions. In the current work, the relationship between growth conditions and droplet fraction on the surface, microstructure, grain size, film thickness and chemical composition was studied. A power factor of 5.25 μW/cm×K2 was achieved with the reduction of droplet fraction on the film surface to 0.57%. The dependencies of the film thickness were studied, and the effect of the thickness on the efficiency of the material is shown. The general trend in the growth dynamics for Bi2Te3Sb1.5 films we obtained is the reduction of crystalline size with Pressure-Temperature (PT) criterion. The results of our work also show the possibility of a significant reduction of droplet phase with simultaneous management of crystalline features and thermoelectric efficiency of Bi2Te3Sb1.5 films grown on polyimide substrates by varying growth conditions.
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Affiliation(s)
- Alexander E. Shupenev
- Department of Laser Technology in Engineering, Bauman Moscow State Technical University, 105005 Moscow, Russia
| | - Svetlana L. Melnik
- Department of Laser Technology in Engineering, Bauman Moscow State Technical University, 105005 Moscow, Russia
| | - Ivan S. Korshunov
- Department of Laser Technology in Engineering, Bauman Moscow State Technical University, 105005 Moscow, Russia
| | - Sergey D. Karpoukhin
- Department of Materials Science, Bauman Moscow State Technical University, 105005 Moscow, Russia
| | - Stanislav G. Sazonkin
- Scientific and Educational Center “Photonics and IR Technology”, Bauman Moscow State Technical University, 105005 Moscow, Russia
| | - Alexander G. Grigor’yants
- Department of Laser Technology in Engineering, Bauman Moscow State Technical University, 105005 Moscow, Russia
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7
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Mishra S. Ultra-mild synthesis of nanometric metal chalcogenides using organyl chalcogenide precursors. Chem Commun (Camb) 2022; 58:10136-10153. [PMID: 36004549 DOI: 10.1039/d2cc03458a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Bis(trialkylsilyl) monochalcogenides and diorganyl dichalcogenides, (R3Si)2E and R2E2 (E = S, Se or Te and R = alkyl, aryl or allyl group), have emerged in the past decade as excellent reagents for the synthesis of metal chalcogenide nanoparticles (NPs) and clusters owing to their ability to transfer the chalcogenide anion (E2-) under ultra-mild conditions and versatility in reacting even with non-conventional metal reagents or being employed in a variety of synthetic methods. In comparison, the related non-silylated diorganyl monochalcogenides R2E have received attention only recently for the solution phase synthesis of metal chalcogenide NPs. In spite of sharing many similarities, these three families of organyl chalcogenides are different in their coordination ability and decomposition behavior, and therefore in reactivities towards metal reagents. This feature article provides a concise overview on the use of these three families as synthons for the ultralow-temperature synthesis of metal chalcogenide nanomaterials, deliberating their different decomposition mechanisms and critically assessing their advantages for certain applications. More specifically, it discusses their usefulness in (i) affording molecular precursors with different kinetic and thermal stabilities, (ii) isolating reactive intermediates for comprehending the mechanism of molecule-to-nanoparticle transformation and, therefore, achieving fine control over the synthesis, (iii) stabilizing isolable metastable or difficult-to-achieve phases, and (iv) yielding complex ternary nanoparticles with controlled stoichiometry or composites with sensitive materials without modifying the characteristics of the latter. Besides providing a perspective on the low-temperature synthesis of nanomaterials, this overview is expected to assist further progress, particularly in the field of R2E, leading to interesting materials including metastable ones for new applications.
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Affiliation(s)
- Shashank Mishra
- Université Claude Bernard Lyon 1, CNRS, UMR 5256, Institut de Recherches sur la Catalyse et l'Environnement de Lyon (IRCELYON), 2 Avenue Albert Einstein, 69626 Villeurbanne, France.
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8
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Grasser MA, Pietsch T, Brunner E, Ruck M. Exploration of metal sulfide syntheses and the dissolution process of antimony sulfide in phosphonium-based ionic liquids. Dalton Trans 2022; 51:4079-4086. [PMID: 35179150 DOI: 10.1039/d1dt04165g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Ionic liquids (ILs), especially task-specific ILs, are capable of dissolving various solids at moderate temperatures without the need for special reaction vessels. Direct synthesis of binary sulfides of B, Bi, Ge, Mo, Cu, Au, Sn, In, Ti, V, Fe, Co, Ga, Ni, Al, Zn, and Sb in [P66614]Cl was tested at 100 °C, i.e. below the melting point of sulfur. Under these conditions, substantial sulfide formation occurred only for nickel (Ni3S4, Ni3S2, NiS) and copper (Cu2S, CuS). Sb showed no formation of crystalline sulfide, but after addition of EtOH, an orange material precipitated which was identified as amorphous metastibnite. Subsequently, the dissolution of antimony sulfide (Sb2S3), the main source of antimony production, in the phosphonium-based ILs [P66614][OAc] and [P66614]Cl at 100 °C was studied in detail. The dissolution proceeds without H2S evolution, and amorphous Sb2S3 can be precipitated from these solutions. Heating Sb2S3 in the Lewis-acidic IL [BMIm]Cl·4.7AlCl3 led to the crystallization of [Sb13S16Cl2][AlCl4]5, which contains a new quadruple heterocubane cation.
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Affiliation(s)
- Matthias A Grasser
- Faculty of Chemistry and Food Chemistry, Technische Universität Dresden, 01062 Dresden, Germany.
| | - Tobias Pietsch
- Faculty of Chemistry and Food Chemistry, Technische Universität Dresden, 01062 Dresden, Germany.
| | - Eike Brunner
- Faculty of Chemistry and Food Chemistry, Technische Universität Dresden, 01062 Dresden, Germany.
| | - Michael Ruck
- Faculty of Chemistry and Food Chemistry, Technische Universität Dresden, 01062 Dresden, Germany. .,Max Planck Institute for Chemical Physics of Solids, Nöthnitzer Str. 40, 01187 Dresden, Germany
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9
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Grasser MA, Finzel K, Ruck M. The Layered Semiconductor Cu(Sb
2
S
3
)[AlCl
4
]. Z Anorg Allg Chem 2022. [DOI: 10.1002/zaac.202200021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Matthias A. Grasser
- Faculty of Chemistry and Food Chemistry Technische Universität Dresden 01069 Dresden Germany
| | - Kati Finzel
- Faculty of Chemistry and Food Chemistry Technische Universität Dresden 01069 Dresden Germany
| | - Michael Ruck
- Faculty of Chemistry and Food Chemistry Technische Universität Dresden 01069 Dresden Germany
- Max Planck Institute for Chemical Physics of Solids Nöthnitzer Str. 40 01187 Dresden Germany
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10
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Hsin CL, Hsiao JC, Chen YM, Lee SW. Thermoelectric properties of Zn- and Ce-alloyed In 2O 3and the effect of SiO 2nanoparticle additives. NANOTECHNOLOGY 2022; 33:135712. [PMID: 34905736 DOI: 10.1088/1361-6528/ac4307] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2021] [Accepted: 12/14/2021] [Indexed: 06/14/2023]
Abstract
Thermoelectric materials are considered promising candidates for thermal energy conversion. This study presents the fabrication of Zn- and Ce-alloyed In2O3with a porous structure. The electrical conductivity was improved by the alloying effect and an ultra-low thermal conductivity was observed owing to the porous structure, which concomitantly provide a distinct enhancement ofZT. However, SiO2nanoparticle additives react with the matrix to form a third-phase impurity, which weakens the electrical conductivity and increases the thermal conductivity. A thermoelectric module was constructed for the purpose of thermal heat energy conversion. Our experimental results proved that both an enhancement in electrical conductivity and a suppression in thermal conductivity could be achieved through nano-engineering. This approach presents a feasible route to synthesize porous thermoelectric oxides, and provides insight into the effect of additives; moreover, this approach is a cost-effective method for the fabrication of thermoelectric oxides without traditional hot-pressing and spark-plasma-sintering processes.
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Affiliation(s)
- Cheng-Lun Hsin
- Department of Electrical Engineering, National Central University, Taoyuan 32001, Taiwan
| | - Jen-Che Hsiao
- Department of Electrical Engineering, National Central University, Taoyuan 32001, Taiwan
| | - You-Ming Chen
- Department of Electrical Engineering, National Central University, Taoyuan 32001, Taiwan
| | - Sheng-Wei Lee
- Institute of Materials Science and Engineering, National Central University, Taoyuan 32001, Taiwan
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Mudring AV, Hammond O. Ionic Liquids and Deep Eutectics as a Transformative Platform for the Synthesis of Nanomaterials. Chem Commun (Camb) 2022; 58:3865-3892. [DOI: 10.1039/d1cc06543b] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Ionic liquids (ILs) are becoming a revolutionary synthesis medium for inorganic nanomaterials, permitting more efficient, safer and environmentally benign preparation of high quality products. A smart combination of ILs and...
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12
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Zaitsau DH, Siewert R, Pimerzin AA, Bülow M, Held C, Loor M, Schulz S, Verevkin SP. From volatility to solubility: Thermodynamics of imidazolium-based ionic liquids containing chloride and bromide anions. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2020.114998] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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13
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Salloum S, Bendt G, Heidelmann M, Loza K, Bayesteh S, Sepideh Izadi M, Kawulok P, He R, Schlörb H, Perez N, Reith H, Nielsch K, Schierning G, Schulz S. Influence of Nanoparticle Processing on the Thermoelectric Properties of (Bi x Sb 1-X ) 2 Te 3 Ternary Alloys. ChemistryOpen 2021; 10:189-198. [PMID: 33492752 PMCID: PMC7874259 DOI: 10.1002/open.202000257] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Revised: 12/12/2020] [Indexed: 01/09/2023] Open
Abstract
The synthesis of phase-pure ternary solutions of tetradymite-type materials (Bix Sb1-x )2 Te3 (x=0.25; 0.50; 0.75) in an ionic liquid approach has been carried out. The nanoparticles are characterized by means of energy-dispersive X-ray spectroscopy (EDX), powder X-ray diffraction (PXRD), scanning electron microscopy (SEM), and transmission electron microscopy. In addition, the role of different processing approaches on the thermoelectric properties - Seebeck coefficient as well as electrical and thermal conductivity - is demonstrated.
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Affiliation(s)
- Sarah Salloum
- Institute for Inorganic Chemistry and Center for Nanointegration Duisburg-Essen (Cenide)University of Duisburg-EssenUniversitätsstraße 5–745117EssenGermany
| | - Georg Bendt
- Institute for Inorganic Chemistry and Center for Nanointegration Duisburg-Essen (Cenide)University of Duisburg-EssenUniversitätsstraße 5–745117EssenGermany
| | - Markus Heidelmann
- Interdisciplinary Center for Analytics on the Nanoscale (ICAN)NETZUniversity of Duisburg-EssenCarl-Benz-Str. 19947047DuisburgGermany
| | - Kateryna Loza
- Institute for Inorganic Chemistry and Center for Nanointegration Duisburg-Essen (Cenide)University of Duisburg-EssenUniversitätsstraße 5–745117EssenGermany
| | - Samaneh Bayesteh
- Institute for Metallic MaterialsLeibniz Institute for Solid State and Materials Research DresdenHelmholtzstrasse 2001069DresdenGermany
- Institute of Applied PhysicsDresden University of Technology01069DresdenGermany
| | - M. Sepideh Izadi
- Institute for Metallic MaterialsLeibniz Institute for Solid State and Materials Research DresdenHelmholtzstrasse 2001069DresdenGermany
- Institute of Applied PhysicsDresden University of Technology01069DresdenGermany
| | - Patrick Kawulok
- Institute for Metallic MaterialsLeibniz Institute for Solid State and Materials Research DresdenHelmholtzstrasse 2001069DresdenGermany
| | - Ran He
- Institute for Metallic MaterialsLeibniz Institute for Solid State and Materials Research DresdenHelmholtzstrasse 2001069DresdenGermany
| | - Heike Schlörb
- Institute for Metallic MaterialsLeibniz Institute for Solid State and Materials Research DresdenHelmholtzstrasse 2001069DresdenGermany
| | - Nicolas Perez
- Institute for Metallic MaterialsLeibniz Institute for Solid State and Materials Research DresdenHelmholtzstrasse 2001069DresdenGermany
| | - Heiko Reith
- Institute for Metallic MaterialsLeibniz Institute for Solid State and Materials Research DresdenHelmholtzstrasse 2001069DresdenGermany
| | - Kornelius Nielsch
- Institute for Metallic MaterialsLeibniz Institute for Solid State and Materials Research DresdenHelmholtzstrasse 2001069DresdenGermany
- Institute of Applied PhysicsDresden University of Technology01069DresdenGermany
- Institute of Materials ScienceDresden University of Technology01069DresdenGermany
| | | | - Stephan Schulz
- Institute for Inorganic Chemistry and Center for Nanointegration Duisburg-Essen (Cenide)University of Duisburg-EssenUniversitätsstraße 5–745117EssenGermany
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14
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Yermalayeu AV, Varfolomeev MA, Verevkin SP. Symmetry vs. asymmetry – Enthalpic differences in imidazolium-based ionic liquids. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.114150] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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15
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Zhang Y, Tang L, Teng KS. High performance broadband photodetectors based on Sb 2Te 3/n-Si heterostructure. NANOTECHNOLOGY 2020; 31:304002. [PMID: 32235040 DOI: 10.1088/1361-6528/ab851c] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
With the rapid development of optoelectronic devices, photodetectors have triggered unprecedented promise in the field of optical communication, environmental monitoring, biological imaging, chemical sensing. At the same time, there is a higher requirement for photodetectors. It is still a huge challenge for photodetectors that possess excellent performance, low cost and broad range photoresponse from ultraviolet to infrared. In this work, a facile, low cost growth of Sb2Te3 thin film using magnetic sputtering was performed. After rapid annealing treatment, the crystallinity of the thin film was transformed from amorphous to polycrystalline. Ultraviolet-visible-infrared absorption study of the thin film revealed broad absorption range, which is ideal for use in broadband photodetectors. Such photodetectors can find many important applications in communication, data security, environmental monitoring and defense technology etc. A prototype photodetector, consisting of Sb2Te3/n-Si heterostructure, was produced and characterized. The device demonstrated a significant photoelectric response at a broad spectral range of between 250 and 2400 nm. The maximum responsivity and detectivity of the device were 270 A W-1 and 1.28 × 1013 Jones, respectively, under 2400 nm illumination. Therefore, the results showed the potential use of Sb2Te3 thin film in developing high performance broadband photodetectors.
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Affiliation(s)
- Yuping Zhang
- Kunming Institute of Physics, Kunming 650223, People's Republic of China. Yunnan Key Laboratory of Advanced Photoelectric Materials & Devices, No.31 East Jiaochang Road, Kunming 650223, People's Republic of China
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16
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Marzo AML, Gusmão R, Sofer Z, Pumera M. Towards Antimonene and 2D Antimony Telluride through Electrochemical Exfoliation. Chemistry 2020; 26:6583-6590. [PMID: 32017255 DOI: 10.1002/chem.201905245] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2019] [Revised: 11/29/2019] [Indexed: 11/08/2022]
Abstract
Two-dimensional (2D) layered antimony (Sb) and antimony telluride (Sb2 Te3 ) are two valuable materials for optoelectronic devices and thermoelectric applications. Preparing high-quality sheets of these materials is the initial phase to promote their expected issues. Herein, micrometer-sized few-to-multilayered sheets of Sb and Sb2 Te3 have been obtained by electrochemical exfoliation. The layered rhombohedral Sb was exfoliated in Na2 SO4 and Li2 SO4 electrolytes by anodic-cationic intercalation, and Sb2 Te3 was exfoliated in Na2 SO4 . These findings are important contributions for the solution-based room-temperature electrochemical exfoliation, which is stable under glove-box-free conditions, to further improve the production of high-quality exfoliated sheets.
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Affiliation(s)
- Adaris M López Marzo
- Center of Advanced Functional Nanorobots, Department of, Inorganic Chemistry, University of Chemistry and Technology Prague, Technická 5, 166 28, Prague 6, Czech Republic
| | - Rui Gusmão
- Center of Advanced Functional Nanorobots, Department of, Inorganic Chemistry, University of Chemistry and Technology Prague, Technická 5, 166 28, Prague 6, Czech Republic
| | - Zdeněk Sofer
- Center of Advanced Functional Nanorobots, Department of, Inorganic Chemistry, University of Chemistry and Technology Prague, Technická 5, 166 28, Prague 6, Czech Republic
| | - Martin Pumera
- Center of Advanced Functional Nanorobots, Department of, Inorganic Chemistry, University of Chemistry and Technology Prague, Technická 5, 166 28, Prague 6, Czech Republic.,Department of Medical Research, China Medical University Hospital, China Medical University, No. 91 Hsueh-Shih Road, Taichung, Taiwan.,Future Energy and Innovation Laboratory, Central European Institute of Technology, Brno University of Technology, Purkyňova 656/123, Brno, 616 00, Czech Republic
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17
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Loor M, Salloum S, Kawulok P, Izadi S, Bendt G, Guschlbauer J, Sundermeyer J, Perez N, Nielsch K, Schierning G, Schulz S. Ionic Liquid-Based Low-Temperature Synthesis of Phase-Pure Tetradymite-Type Materials and Their Thermoelectric Properties. Inorg Chem 2020; 59:3428-3436. [DOI: 10.1021/acs.inorgchem.9b03060] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Manuel Loor
- Institute of Inorganic Chemistry and Center for Nanointegration Duisburg-Essen (CENIDE), University of Duisburg-Essen, Universitätsstrasse 5-7, D-45117 Essen, Germany
| | - Sarah Salloum
- Institute of Inorganic Chemistry and Center for Nanointegration Duisburg-Essen (CENIDE), University of Duisburg-Essen, Universitätsstrasse 5-7, D-45117 Essen, Germany
| | - Patrick Kawulok
- Institute for Metallic Materials, Leibniz Institute for Solid State and Materials Research Dresden (IFW Dresden), Helmholtzstrasse 20, 01069 Dresden, Germany
- Institute of Materials Science, Technical University of Dresden, 01062 Dresden, Germany
| | - Sepideh Izadi
- Institute for Metallic Materials, Leibniz Institute for Solid State and Materials Research Dresden (IFW Dresden), Helmholtzstrasse 20, 01069 Dresden, Germany
- Institute of Materials Science, Technical University of Dresden, 01062 Dresden, Germany
| | - Georg Bendt
- Institute of Inorganic Chemistry and Center for Nanointegration Duisburg-Essen (CENIDE), University of Duisburg-Essen, Universitätsstrasse 5-7, D-45117 Essen, Germany
| | - Jannick Guschlbauer
- Fachbereich Chemie and Materials Science Center, Philipps-Universität Marburg, Hans-Meerwein-Strasse 4, 35032 Marburg, Germany
| | - Jörg Sundermeyer
- Fachbereich Chemie and Materials Science Center, Philipps-Universität Marburg, Hans-Meerwein-Strasse 4, 35032 Marburg, Germany
| | - Nicolas Perez
- Institute for Metallic Materials, Leibniz Institute for Solid State and Materials Research Dresden (IFW Dresden), Helmholtzstrasse 20, 01069 Dresden, Germany
| | - Kornelius Nielsch
- Institute for Metallic Materials, Leibniz Institute for Solid State and Materials Research Dresden (IFW Dresden), Helmholtzstrasse 20, 01069 Dresden, Germany
- Institute of Materials Science, Technical University of Dresden, 01062 Dresden, Germany
| | - Gabi Schierning
- Institute for Metallic Materials, Leibniz Institute for Solid State and Materials Research Dresden (IFW Dresden), Helmholtzstrasse 20, 01069 Dresden, Germany
| | - Stephan Schulz
- Institute of Inorganic Chemistry and Center for Nanointegration Duisburg-Essen (CENIDE), University of Duisburg-Essen, Universitätsstrasse 5-7, D-45117 Essen, Germany
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18
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Wu Z, Liang G, Pang WK, Zhou T, Cheng Z, Zhang W, Liu Y, Johannessen B, Guo Z. Coupling Topological Insulator SnSb 2 Te 4 Nanodots with Highly Doped Graphene for High-Rate Energy Storage. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2020; 32:e1905632. [PMID: 31777986 DOI: 10.1002/adma.201905632] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2019] [Revised: 10/25/2019] [Indexed: 06/10/2023]
Abstract
Topological insulators have spurred worldwide interest, but their advantageous properties have scarcely been explored in terms of electrochemical energy storage, and their high-rate capability and long-term cycling stability still remain a significant challenge to harvest. p-Type topological insulator SnSb2 Te4 nanodots anchoring on few-layered graphene (SnSb2 Te4 /G) are synthesized as a stable anode for high-rate lithium-ion batteries and potassium-ion batteries through a ball-milling method. These SnSb2 Te4 /G composite electrodes show ultralong cycle lifespan (478 mAh g-1 at 1 A g-1 after 1000 cycles) and excellent rate capability (remaining 373 mAh g-1 even at 10 A g-1 ) in Li-ion storage owing to the rapid ion transport accelerated by the PN heterojunction, virtual electron highways provided by the conductive topological surface state, and extraordinary pseudocapacitive contribution, whose excellent phase reversibility is confirmed by synchrotron in situ X-ray powder diffraction. Surprisingly, durable lifespan even at practical levels of mass loading (>10 mg cm-2 ) for Li-ion storage and excellent K-ion storage performance are also observed. This work provides new insights for designing high-rate electrode materials by boosting conductive topological surfaces, atomic doping, and the interface interaction.
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Affiliation(s)
- Zhibin Wu
- Institute for Superconducting & Electronic Materials, University of Wollongong, Wollongong, NSW, 2522, Australia
- School of Mechanical, Materials, Mechatronics and Biomedical Engineering, University of Wollongong, Wollongong, NSW, 2522, Australia
| | - Gemeng Liang
- Institute for Superconducting & Electronic Materials, University of Wollongong, Wollongong, NSW, 2522, Australia
| | - Wei Kong Pang
- Institute for Superconducting & Electronic Materials, University of Wollongong, Wollongong, NSW, 2522, Australia
| | - Tengfei Zhou
- Institute for Superconducting & Electronic Materials, University of Wollongong, Wollongong, NSW, 2522, Australia
| | - Zhenxiang Cheng
- Institute for Superconducting & Electronic Materials, University of Wollongong, Wollongong, NSW, 2522, Australia
| | - Wenchao Zhang
- Institute for Superconducting & Electronic Materials, University of Wollongong, Wollongong, NSW, 2522, Australia
| | - Ye Liu
- Institute for Superconducting & Electronic Materials, University of Wollongong, Wollongong, NSW, 2522, Australia
| | - Bernt Johannessen
- Australian Synchrotron, 800 Blackburn Rd, Clayton, VIC, 3168, Australia
| | - Zaiping Guo
- Institute for Superconducting & Electronic Materials, University of Wollongong, Wollongong, NSW, 2522, Australia
- School of Mechanical, Materials, Mechatronics and Biomedical Engineering, University of Wollongong, Wollongong, NSW, 2522, Australia
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19
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Celania C, Mudring AV. Structures, properties, and potential applications of rare earth-noble metal tellurides. J SOLID STATE CHEM 2019. [DOI: 10.1016/j.jssc.2019.03.009] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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20
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Wang Y, Hou Q, Ju M, Li W. New Developments in Material Preparation Using a Combination of Ionic Liquids and Microwave Irradiation. NANOMATERIALS 2019; 9:nano9040647. [PMID: 31013641 PMCID: PMC6523822 DOI: 10.3390/nano9040647] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/08/2019] [Revised: 04/11/2019] [Accepted: 04/16/2019] [Indexed: 12/24/2022]
Abstract
During recent years, synthetic methods combining microwaves and ionic liquids became accepted as a promising methodology for various materials preparations because of their high efficiency and low energy consumption. Ionic liquids with high polarity are heated rapidly, volumetrically and simultaneously under microwave irradiation. Hence, combination of microwave irradiation as a heating source with ionic liquids with various roles (e.g., solvent, additive, template or reactant) opened a completely new technique in the last twenty years for nanomaterials and polymers preparation for applications in various materials science fields including polymer science. This review summarizes recent developments of some common materials syntheses using microwave-assisted ionic liquid method with a focus on inorganic nanomaterials, polymers, carbon-derived composites and biomass-based composites. After that, the mechanisms involved in microwave-assisted ionic-liquid (MAIL) are discussed briefly. This review also highlights the role of ionic liquids in the reaction and crucial issues that should be addressed in future research involving this synthesis technique.
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Affiliation(s)
- Yannan Wang
- College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China.
| | - Qidong Hou
- College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China.
| | - Meiting Ju
- College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China.
| | - Weizun Li
- College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China.
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21
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Scalfani VF, Al Alshaikh A, Bara JE. Analysis of the Frequency and Diversity of 1,3-Dialkylimidazolium Ionic Liquids Appearing in the Literature. Ind Eng Chem Res 2018. [DOI: 10.1021/acs.iecr.8b02573] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Vincent F. Scalfani
- University Libraries, Rodgers Library for Science and Engineering, University of Alabama, Tuscaloosa, Alabama 35487, United States
| | - Ali Al Alshaikh
- Department of Chemical & Biological Engineering, University of Alabama, Tuscaloosa, Alabama 35487, United States
| | - Jason E. Bara
- Department of Chemical & Biological Engineering, University of Alabama, Tuscaloosa, Alabama 35487, United States
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22
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Hu Y, Kauzlarich SM. Yb14MgBi11: structure, thermoelectric properties and the effect of the structure on low lattice thermal conductivity. Dalton Trans 2017; 46:3996-4003. [DOI: 10.1039/c7dt00183e] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This paper presents a new compound Yb14MgBi11and its thermoelectric properties, especially its extremely low lattice thermal conductivity.
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Affiliation(s)
- Yufei Hu
- Chemistry Department
- One Shields Avenue
- University of California
- Davis
- 95616
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