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Borovaya M, Horiunova I, Plokhovska S, Pushkarova N, Blume Y, Yemets A. Synthesis, Properties and Bioimaging Applications of Silver-Based Quantum Dots. Int J Mol Sci 2021; 22:12202. [PMID: 34830084 PMCID: PMC8620749 DOI: 10.3390/ijms222212202] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Revised: 10/25/2021] [Accepted: 10/27/2021] [Indexed: 12/20/2022] Open
Abstract
Ag-based quantum dots (QDs) are semiconductor nanomaterials with exclusive electrooptical properties ideally adaptable for various biotechnological, chemical, and medical applications. Silver-based semiconductor nanocrystals have developed rapidly over the past decades. They have become a promising luminescent functional material for in vivo and in vitro fluorescent studies due to their ability to emit at the near-infrared (NIR) wavelength. In this review, we discuss the basic features of Ag-based QDs, the current status of classic (chemical) and novel methods ("green" synthesis) used to produce these QDs. Additionally, the advantages of using such organisms as bacteria, actinomycetes, fungi, algae, and plants for silver-based QDs biosynthesis have been discussed. The application of silver-based QDs as fluorophores for bioimaging application due to their fluorescence intensity, high quantum yield, fluorescent stability, and resistance to photobleaching has also been reviewed.
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Affiliation(s)
- Mariya Borovaya
- Institute of Food Biotechnology and Genomics, National Academy of Sciences of Ukraine, Osypovskoho Str. 2a, 04123 Kyiv, Ukraine; (I.H.); (S.P.); (N.P.); (Y.B.); (A.Y.)
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Zhong B, Wang X, Bi Y, Kang W, Zhang L. Simple synthesis of crooked Ag 2Te nanotubes and their photoelectrical properties. NEW J CHEM 2021. [DOI: 10.1039/d1nj00687h] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Crooked Ag2Te nanotubes were prepared through homogeneous precipitation and the photoelectric properties of the film-based photodetector were investigated.
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Affiliation(s)
- Binnian Zhong
- Qinghai Provincial Key Laboratory of New Light Alloys
- Qinghai Provincial Engineering Research Center of High Performance Light Metal Alloys and Forming
- Qinghai University
- Xining
- China
| | - Xinqing Wang
- Qinghai Provincial Key Laboratory of New Light Alloys
- Qinghai Provincial Engineering Research Center of High Performance Light Metal Alloys and Forming
- Qinghai University
- Xining
- China
| | - Yanyu Bi
- Qinghai Provincial Key Laboratory of New Light Alloys
- Qinghai Provincial Engineering Research Center of High Performance Light Metal Alloys and Forming
- Qinghai University
- Xining
- China
| | - Weifeng Kang
- Qinghai Provincial Key Laboratory of New Light Alloys
- Qinghai Provincial Engineering Research Center of High Performance Light Metal Alloys and Forming
- Qinghai University
- Xining
- China
| | - Linhui Zhang
- Qinghai Provincial Key Laboratory of New Light Alloys
- Qinghai Provincial Engineering Research Center of High Performance Light Metal Alloys and Forming
- Qinghai University
- Xining
- China
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Shimamura K, Takeshita Y, Fukushima S, Koura A, Shimojo F. Computational and training requirements for interatomic potential based on artificial neural network for estimating low thermal conductivity of silver chalcogenides. J Chem Phys 2020; 153:234301. [PMID: 33353316 DOI: 10.1063/5.0027058] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
We examined the estimation of thermal conductivity through molecular dynamics simulations for a superionic conductor, α-Ag2Se, using the interatomic potential based on an artificial neural network (ANN potential). The training data were created using the existing empirical potential of Ag2Se to help find suitable computational and training requirements for the ANN potential, with the intent to apply them to first-principles calculations. The thermal conductivities calculated using different definitions of heat flux were compared, and the effect of explicit long-range Coulomb interaction on the conductivities was investigated. We clarified that using a rigorous heat flux formula for the ANN potential, even for highly ionic α-Ag2Se, the resulting thermal conductivity was reasonably consistent with the reference value without explicitly considering Coulomb interaction. It was found that ANN training including the virial term played an important role in reducing the dependency of thermal conductivity on the initial values of the weight parameters of the ANN.
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Affiliation(s)
- Kohei Shimamura
- Department of Physics, Kumamoto University, Kumamoto 860-8555, Japan
| | - Yusuke Takeshita
- Department of Physics, Kumamoto University, Kumamoto 860-8555, Japan
| | - Shogo Fukushima
- Department of Physics, Kumamoto University, Kumamoto 860-8555, Japan
| | - Akihide Koura
- Department of Physics, Kumamoto University, Kumamoto 860-8555, Japan
| | - Fuyuki Shimojo
- Department of Physics, Kumamoto University, Kumamoto 860-8555, Japan
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Zhu T, Bai H, Zhang J, Tan G, Yan Y, Liu W, Su X, Wu J, Zhang Q, Tang X. Realizing High Thermoelectric Performance in Sb-Doped Ag 2Te Compounds with a Low-Temperature Monoclinic Structure. ACS APPLIED MATERIALS & INTERFACES 2020; 12:39425-39433. [PMID: 32805902 DOI: 10.1021/acsami.0c10932] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
To recover the low-grade waste heat (300-500 K), it is of urgent importance to develop and improve the thermoelectric performance at a low-temperature region. Herein, we have realized a record high ZT value of 1.4 at 410 K and a record high average ZT value of 0.6 in the temperature interval from 300 to 400 K for Sb-doped Ag2SbxTe1-x (x = 0-0.03) compounds, which show an improvement of 180 and 120% compared to pristine Ag2Te, respectively. Sb doping increases the carrier concentration and electrical conductivity, leading to a remarkable improvement of electrical transport properties. The Ag2Sb0.015Te0.985 sample obtains the maximal power factor of 1.07 × 10-3 W m-1 K-2 at 410 K, which is increased by 80% in comparison to that of pristine Ag2Te. Moreover, as a result of the intensified alloying phonon scattering by Sb doping, Ag2Sb0.01Te0.99 possesses the minimum lattice thermal conductivity of 0.35 W m-1 K-1 at 300 K, which demonstrates a decline of 57% compared to that of pristine Ag2Te. All of these produce a great enhancement on the thermoelectric performance of Ag2Te materials, which shows great potential in the application of recycling the low-grade waste heat at a low-temperature region.
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Affiliation(s)
- Ting Zhu
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, Hubei 430070, People's Republic of China
| | - Hui Bai
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, Hubei 430070, People's Republic of China
| | - Jian Zhang
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, Hubei 430070, People's Republic of China
| | - Gangjian Tan
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, Hubei 430070, People's Republic of China
| | - Yonggao Yan
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, Hubei 430070, People's Republic of China
| | - Wei Liu
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, Hubei 430070, People's Republic of China
| | - Xianli Su
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, Hubei 430070, People's Republic of China
| | - Jinsong Wu
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, Hubei 430070, People's Republic of China
| | - Qingjie Zhang
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, Hubei 430070, People's Republic of China
| | - Xinfeng Tang
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, Hubei 430070, People's Republic of China
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Thermal transport crossover from crystalline to partial-crystalline partial-liquid state. Nat Commun 2018; 9:4712. [PMID: 30413695 PMCID: PMC6226496 DOI: 10.1038/s41467-018-07027-x] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2018] [Accepted: 10/02/2018] [Indexed: 11/24/2022] Open
Abstract
Phase-change materials (crystalline at low temperatures and partial-crystalline partial-liquid state at high temperatures) are widely used as thermoelectric converters and battery electrodes. Here, we report the underlying mechanisms driving the thermal transport of the liquid component, and the thermal conductivity contributions from phonons, vibrations with extremely short mean free path, liquid and lattice-liquid interactions in phase-changed Li2S. In the crystalline state (T ≤ 1000 K), the temperature dependent thermal conductivity manifests two different behaviors, i.e., a typical trend of 1/T below 800 K and an even faster decrease between 800 and 1000 K. For the partial-crystalline partial-liquid Li2S when T ≥ 1100 K, the contributions of liquid and lattice-liquid interactions increase significantly due to the fluidization of Li ions, and the vibrations with extremely short mean free path, presumably assimilated to diffusons, can contribute up to 46% of the total thermal conductivity at T = 1300 K. Phase-change materials are applied as thermoelectric converters and battery electrodes, but underlying mechanisms are not fully understood. Here, the authors comprehensively describe thermal transport mechanisms of lithium sulfide based on molecular dynamics and first-principles simulations.
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Lin H, Tan G, Shen JN, Hao S, Wu LM, Calta N, Malliakas C, Wang S, Uher C, Wolverton C, Kanatzidis MG. Concerted Rattling in CsAg5 Te3 Leading to Ultralow Thermal Conductivity and High Thermoelectric Performance. Angew Chem Int Ed Engl 2016; 55:11431-6. [PMID: 27513458 DOI: 10.1002/anie.201605015] [Citation(s) in RCA: 69] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2016] [Revised: 07/05/2016] [Indexed: 11/05/2022]
Abstract
Thermoelectric (TE) materials convert heat energy directly into electricity, and introducing new materials with high conversion efficiency is a great challenge because of the rare combination of interdependent electrical and thermal transport properties required to be present in a single material. The TE efficiency is defined by the figure of merit ZT=(S(2) σ) T/κ, where S is the Seebeck coefficient, σ is the electrical conductivity, κ is the total thermal conductivity, and T is the absolute temperature. A new p-type thermoelectric material, CsAg5 Te3 , is presented that exhibits ultralow lattice thermal conductivity (ca. 0.18 Wm(-1) K(-1) ) and a high figure of merit of about 1.5 at 727 K. The lattice thermal conductivity is the lowest among state-of-the-art thermoelectrics; it is attributed to a previously unrecognized phonon scattering mechanism that involves the concerted rattling of a group of Ag ions that strongly raises the Grüneisen parameters of the material.
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Affiliation(s)
- Hua Lin
- Key Laboratory of Design and Assembly of Functional Nanostructures, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian, 350002, P.R. China
| | - Gangjian Tan
- Department of Chemistry, Northwestern University, Evanston, IL, 60208, USA
| | - Jin-Ni Shen
- Key Laboratory of Design and Assembly of Functional Nanostructures, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian, 350002, P.R. China
| | - Shiqiang Hao
- Department of Materials Science and Engineering, Northwestern University, Evanston, IL, 60208, USA
| | - Li-Ming Wu
- Key Laboratory of Design and Assembly of Functional Nanostructures, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian, 350002, P.R. China.
| | - Nicholas Calta
- Department of Chemistry, Northwestern University, Evanston, IL, 60208, USA.,Department of Materials Science and Engineering, Northwestern University, Evanston, IL, 60208, USA
| | - Christos Malliakas
- Department of Chemistry, Northwestern University, Evanston, IL, 60208, USA
| | - Si Wang
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, 430070, China.,Department of Physics, University of Michigan, Ann Arbor, MI, 48109, USA
| | - Ctirad Uher
- Department of Physics, University of Michigan, Ann Arbor, MI, 48109, USA
| | - Christopher Wolverton
- Department of Materials Science and Engineering, Northwestern University, Evanston, IL, 60208, USA
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Lin H, Tan G, Shen J, Hao S, Wu L, Calta N, Malliakas C, Wang S, Uher C, Wolverton C, Kanatzidis MG. Concerted Rattling in CsAg
5
Te
3
Leading to Ultralow Thermal Conductivity and High Thermoelectric Performance. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201605015] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Hua Lin
- Key Laboratory of Design and Assembly of Functional Nanostructures Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences Fuzhou Fujian 350002 P.R. China
| | - Gangjian Tan
- Department of Chemistry Northwestern University Evanston IL 60208 USA
| | - Jin‐Ni Shen
- Key Laboratory of Design and Assembly of Functional Nanostructures Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences Fuzhou Fujian 350002 P.R. China
| | - Shiqiang Hao
- Department of Materials Science and Engineering Northwestern University Evanston IL 60208 USA
| | - Li‐Ming Wu
- Key Laboratory of Design and Assembly of Functional Nanostructures Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences Fuzhou Fujian 350002 P.R. China
| | - Nicholas Calta
- Department of Chemistry Northwestern University Evanston IL 60208 USA
- Department of Materials Science and Engineering Northwestern University Evanston IL 60208 USA
| | | | - Si Wang
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan 430070 China
- Department of Physics University of Michigan Ann Arbor MI 48109 USA
| | - Ctirad Uher
- Department of Physics University of Michigan Ann Arbor MI 48109 USA
| | - Christopher Wolverton
- Department of Materials Science and Engineering Northwestern University Evanston IL 60208 USA
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