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Kumar A, Parida P. Iron-arsenide monolayers as an anode material for lithium-ion batteries: a first-principles study. Phys Chem Chem Phys 2024; 26:12060-12069. [PMID: 38586896 DOI: 10.1039/d4cp00062e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/09/2024]
Abstract
This theoretical investigation delves into the structural, electronic, and electrochemical properties of two hexagonal iron-arsenide monolayers, 1T-FeAs and 1H-FeAs, focusing on their potential as anode materials for lithium-ion batteries. Previous studies have highlighted the ferromagnetic nature of 1T-FeAs at room temperature. Our calculations reveal that both phases exhibit metallic behaviour with spin-polarized electronic band structures. Electrochemical studies show that the 1T-FeAs monolayer has better ionic conductivity for Li ions than the 1H-FeAs phase, attributed to a lower activation barrier of 0.38 eV. This characteristic suggests a faster charge/discharge rate. Both FeAs phases exhibit comparable theoretical capacities (374 mA h g-1), outperforming commercial graphite anodes. The average open-circuit voltage for maximum Li atom adsorption is 0.61 V for 1H-FeAs and 0.44 V for 1T-FeAs. The volume expansion over the maximum adsorption of Li atoms on both phases is also remarkably less than the commercially used anode material such as graphite. Furthermore, the adsorption of Li atoms onto 1H-FeAs induces a remarkable transition from ferromagnetism to anti-ferromagnetism, with minimal impact on the electronic band structure. In contrast, the original state of 1T-FeAs remains unaffected by Li adsorption. To summarize, both 1T-FeAs and 1H-FeAs monolayers have potential as promising anode materials for lithium-ion batteries, offering valuable insights into their electrochemical performance and phase transition behaviour upon Li adsorption.
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Affiliation(s)
- Ajay Kumar
- Department of Physics, Indian Institute of Technology Patna, Bihta, Bihar, India.
| | - Prakash Parida
- Department of Physics, Indian Institute of Technology Patna, Bihta, Bihar, India.
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Senapati P, Parida P. Charge and spin thermoelectric transport in benzene-based molecular nano-junctions: a quantum many-body study. Nanoscale 2024; 16:2574-2590. [PMID: 38224290 DOI: 10.1039/d3nr04714h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/16/2024]
Abstract
Within the Coulomb blockade regime, our study delves into the charge, spin, and thermoelectric transport characteristics of a benzene-based molecular nano-junction using the Pauli master equation and linear response theory. The charge- and spin-transport studies show strong negative differential conductance features in the current-voltage (I-V) characteristics for the ortho and meta connections of electrodes on either side. Contrarily, the para-connection displays Coulomb staircase behavior. By exploring spin current behavior in the presence of spin-polarized electrodes or an external Zeeman field, we establish a methodology that facilitates precise control over the specific spin flow. Various charge and spin thermoelectric transport coefficients have been studied with varying chemical potentials. We focus on spin-polarized conductance, the Seebeck coefficient, and the figure of merit. By adjusting electrode polarization or employing an external magnetic field, we achieve an impressive peak value for the spin thermoelectric figure of merit, approximately 4.10. This outcome underscores the strategic value of harnessing both spin-polarized electrodes and external magnetic fields within the domain of spin caloritronics.
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Affiliation(s)
- Parbati Senapati
- Department of Physics, Indian Institute of Technology Patna, Bihta, Bihar, 801106, India.
| | - Prakash Parida
- Department of Physics, Indian Institute of Technology Patna, Bihta, Bihar, 801106, India.
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Kumar A, Senapati P, Parida P. Theoretical insights into the structural, electronic and thermoelectric properties of the inorganic biphenylene monolayer. Phys Chem Chem Phys 2024; 26:2044-2057. [PMID: 38126442 DOI: 10.1039/d3cp03088a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2023]
Abstract
Being motivated by a recently synthesized biphenylene carbon monolayer (BPN), using first principles methods, we have studied its inorganic analogue (B-N analogue) named I-BPN. A comparative study of structural, electronic and mechanical properties between BPN and I-BPN was carried out. Like BPN, the stability of I-BPN was verified in terms of formation energy, phonon dispersion calculations, and mechanical parameters (Young's modulus and Poisson's ratio). The chemical inertness of I-BPN was also investigated by adsorbing an oxygen molecule in an oxygen-rich environment. It has been found that the B-B bond favours the oxygen molecule to be adsorbed through chemisorption. The lattice transport properties reveal that the phonon thermal conductivity of I-BPN is ten times lower than that of BPN. The electronic band structure reveals that I-BPN is a semiconductor with an indirect bandgap of 1.88 eV, while BPN shows metallic behaviour. In addition, we investigated various thermoelectric properties of I-BPN for possible thermoelectric applications. The thermoelectric parameters, such as the Seebeck coefficient, show the highest peak value of 0.00289 V K-1 at 300 K. Electronic transport properties reveal that I-BPN is highly anisotropic along the x and y-axes. Furthermore, the thermoelectric power factor as a function of chemical potential shows a peak value of 0.057 W m-1 K-2 along the x-axis in the p-type doping region. The electronic figure of merit shows a peak value of approximately unity. However, considering lattice thermal conductivity, the peak value of the total figure of merit (ZT) reduces to 0.68(0.46) for p-type and 0.56(0.48) for n-type doping regions along the x(y) direction at 900 K. It is worth noting that our calculated ZT value of I-BPN is higher than that of many other reported B-N composite materials.
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Affiliation(s)
- Ajay Kumar
- Department of Physics, Indian Institute of Technology Patna, Bihta, Bihar, India.
| | - Parbati Senapati
- Department of Physics, Indian Institute of Technology Patna, Bihta, Bihar, India.
| | - Prakash Parida
- Department of Physics, Indian Institute of Technology Patna, Bihta, Bihar, India.
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Panigrahi A, Kumar A, Mishra L, Dubey P, Dutta S, Parida P, Sarangi MK. Modulation of carrier conduction in CsPbBr3 perovskite quantum dots with band-aligned electron and hole acceptors. J Chem Phys 2023; 159:184704. [PMID: 37942870 DOI: 10.1063/5.0174262] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Accepted: 10/23/2023] [Indexed: 11/10/2023] Open
Abstract
The lead halide perovskites have emerged as promising materials with intriguing photo-physical properties and have immense potential for photovoltaic applications. A comprehensive study on the kinetics of charge carrier (electron/hole) generation and transfer across the interface is key to realizing their future scope for efficient device engineering. Herein, we investigate the interfacial charge transfer (CT) dynamics in cesium lead halide (CsPbBr3) perovskite quantum dots (PQDs) with energetically favorable electron acceptors, anthraquinone (AQ) and p-benzoquinone (BQ), and hole acceptors such as pyrene and 4-(dimethylamino)pyridine (DMAP). With various steady-state and time-resolved spectroscopic and microscopic measurements, a faster electron transfer rate is estimated for CsPbBr3 PQDs with BQ compared to that of AQ, while a superior hole transfer for DMAP is divulged compared to pyrene. In concurrence with the spectroscopic measurements, conducting atomic force microscopic studies across the electrode-PQD-electrode junction reveals an increment in the conductance of the PQD in the presence of both the electron and hole acceptors. The variation of the density of states calculation in the presence of the hole acceptors offers strong support and validation for faster CT efficiency. The above findings suggest that a careful selection of simple yet efficient molecular arrangements can facilitate rapid carrier transfer, which can be designed as auxiliary layers for smooth CT and help in the engineering of cost-effective photovoltaic devices.
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Affiliation(s)
- Aradhana Panigrahi
- Department of Physics, Indian Institute of Technology, Patna 801106, India
| | - Ajay Kumar
- Department of Physics, Indian Institute of Technology, Patna 801106, India
| | - Leepsa Mishra
- Department of Physics, Indian Institute of Technology, Patna 801106, India
| | - Priyanka Dubey
- Department of Physics, Indian Institute of Technology, Patna 801106, India
| | - Soumi Dutta
- Department of Physics, Indian Institute of Technology, Patna 801106, India
| | - Prakash Parida
- Department of Physics, Indian Institute of Technology, Patna 801106, India
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Mallick J, Kumar A, Das T, Pradhan LK, Parida P, Kar M. Structural phase transition driven dielectric and optical properties with reduction in band gap in Sr 2+modified BaTiO 3ceramics. J Phys Condens Matter 2023; 35:475403. [PMID: 37567239 DOI: 10.1088/1361-648x/acef9c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Accepted: 08/11/2023] [Indexed: 08/13/2023]
Abstract
Ferroelectric materials with crystal symmetry transition from single phase to multiphase coexistence exhibit anomalous photosensitive properties. The optical properties (optical band gap and photosensitive) found on non-centrosymmetric and centrosymmetric systems achieved research interest because of their interesting behavior. In this regard, the lead-free polycrystalline Ba1-xSrxTiO3(BSTO, 0⩽x⩽0.3) has been synthesized to explore its crystal structure, dielectric, light absorption, and photocurrent sensing properties for various applications. Both experimental and theoretical studies on BSTO (0⩽x⩽0.3) ceramics confirm the crystal symmetry transition with the reduction of band gap as compared to pristine BaTiO3. This crystal symmetry transition plays an important role in varying the various physical properties as it involves the transition from the polar phase to the non-polar phase. The optical band gap has been estimated experimentally by the Tauc plot method and found that there is a small variation of energy band gap from 3.615 eV to 3.212 eV with Sr substitution. The highest dielectric constant was found to be 5327 at lower frequency on Ba0.76Sr0.24TiO3after that for further increase in Sr concentration the dielectric constant decreases because of the introduction of the non-polar phase. A strong correlation between crystal structure and physical properties (dielectric, optical, etc.) has been observed. The photocurrent of the samples is significant which reveals that the sample is influenced by the photons. In a nutshell, the present study deepens the understanding of the correlation between crystal structure and various physical properties of BSTO and, hence provides an idea of required design parameters to construct a ferroelectric system for better photosensitive nature suitable for device applications.
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Affiliation(s)
- Jyotirekha Mallick
- Department of Physics, Indian Institute of Technology Patna, Bihta, Patna 801106, India
| | - Ajay Kumar
- Department of Physics, Indian Institute of Technology Patna, Bihta, Patna 801106, India
| | - Tupan Das
- Department of Physics, Indian Institute of Technology Patna, Bihta, Patna 801106, India
| | - Lagen Kumar Pradhan
- Department of Physics, Indian Institute of Technology Patna, Bihta, Patna 801106, India
- Department of Physics, Deogarh College, Sambalpur University, Deogarh 768110, India
| | - Prakash Parida
- Department of Physics, Indian Institute of Technology Patna, Bihta, Patna 801106, India
| | - Manoranjan Kar
- Department of Physics, Indian Institute of Technology Patna, Bihta, Patna 801106, India
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Mishra L, Kumar A, Panigrahi A, Dubey P, Dutta S, Parida P, Sarangi MK. Unraveling the Relevance of Electron and Hole Transfer in Lead Halide Perovskite Nanocrystals on Current Conduction. J Phys Chem Lett 2023; 14:7340-7345. [PMID: 37561565 DOI: 10.1021/acs.jpclett.3c01893] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/11/2023]
Abstract
Optimization of perovskite-based optoelectronic performance demands prudent engineering in the device architecture with facile transport of generated charge carriers. Herein, we explore the charge transfer (CT) kinetics in perovskite nanocrystals (PNCs), CsPbBr3, with two redox-active quinones, menadione (MD) and anthraquinone (AQ), and its alteration in halide exchanged CsPbCl3. With a series of spectroscopic and microscopic measurements, we infer that both electron and hole transfer (ET-HT) prevail in CsPbCl3 with quinones, resulting in a faster CT, while ET predominates for CsPbBr3. Furthermore, current-sensing atomic force microscopy measurements demonstrate that the conductance across a metal-PNC-metal nanojunction is improved in the presence of quinones. The contributions of ET and HT to current conduction across PNCs are well supported and validated by theoretical calculations of the density of states. These outcomes convey a new perspective on the relevance of ET and HT in the optimal current conduction and optoelectronic device engineering of perovskites.
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Affiliation(s)
- Leepsa Mishra
- Department of Physics, Indian Institute of Technology Patna, Bihar, India 801106
| | - Ajay Kumar
- Department of Physics, Indian Institute of Technology Patna, Bihar, India 801106
| | - Aradhana Panigrahi
- Department of Physics, Indian Institute of Technology Patna, Bihar, India 801106
| | - Priyanka Dubey
- Department of Physics, Indian Institute of Technology Patna, Bihar, India 801106
| | - Soumi Dutta
- Department of Physics, Indian Institute of Technology Patna, Bihar, India 801106
| | - Prakash Parida
- Department of Physics, Indian Institute of Technology Patna, Bihar, India 801106
| | - Manas Kumar Sarangi
- Department of Physics, Indian Institute of Technology Patna, Bihar, India 801106
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Sarmah NP, Sarma K, Bhattacharyya DR, Sultan AA, Bansal D, Singh N, Bharti PK, Sehgal R, Mohapatra PK, Parida P, Mahanta J. Antifolate drug resistance: Novel mutations and haplotype distribution in dhps and dhfr from Northeast India. J Biosci 2018; 42:531-535. [PMID: 29229871 DOI: 10.1007/s12038-017-9706-5] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Malaria is a major public health concern in Northeast India with a preponderance of drug-resistant strains. Until recently the partner drug for artemisinin combination therapy (ACT) was sulphadoxine pyrimethamine (SP). Antifolate drug resistance has been associated with the mutations at dihydropteroate synthase (dhps) and dihydrofolatereductase (dhfr) genes. This study investigated antifolate drug resistance at the molecular level. A total of 249 fever cases from Arunachal Pradesh, NE India, were screened for malaria, and of these, 75 were found to be positive for Plasmodium falciparum. Samples were sequenced and analysed with the help of BioEdit and ClustalW. Three novel point mutations were found in the dhps gene with 10 haplotypes along with the already reported mutations. A single haplotype having quadruple mutation was found in the dhfr gene. The study reports higher degree of antifolate drug resistance as evidenced by the presence of multiple point mutations in dhps and dhfr genes. The findings of this study strongly discourage the use SP as a partner drug in ACT.
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Affiliation(s)
- N P Sarmah
- Regional Medical Research Centre (Indian Council of Medical Research), Dibrugarh, Assam 786 001, India
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Stauber T, Parida P, Trushin M, Ulybyshev MV, Boyda DL, Schliemann J. Interacting Electrons in Graphene: Fermi Velocity Renormalization and Optical Response. Phys Rev Lett 2017; 118:266801. [PMID: 28707915 DOI: 10.1103/physrevlett.118.266801] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2017] [Indexed: 06/07/2023]
Abstract
We have developed a Hartree-Fock theory for electrons on a honeycomb lattice aiming to solve a long-standing problem of the Fermi velocity renormalization in graphene. Our model employs no fitting parameters (like an unknown band cutoff) but relies on a topological invariant (crystal structure function) that makes the Hartree-Fock sublattice spinor independent of the electron-electron interaction. Agreement with the experimental data is obtained assuming static self-screening including local field effects. As an application of the model, we derive an explicit expression for the optical conductivity and discuss the renormalization of the Drude weight. The optical conductivity is also obtained via precise quantum Monte Carlo calculations which compares well to our mean-field approach.
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Affiliation(s)
- T Stauber
- Departamento de Teoría y Simulación de Materiales, Instituto de Ciencia de Materiales de Madrid, CSIC, E-28049 Madrid, Spain
| | - P Parida
- Institute for Theoretical Physics, University of Regensburg, D-93040 Regensburg, Germany
| | - M Trushin
- Department of Physics, University of Konstanz, D-78457 Konstanz, Germany
| | - M V Ulybyshev
- Institute for Theoretical Physics, University of Regensburg, D-93040 Regensburg, Germany
| | - D L Boyda
- Far Eastern Federal University, Sukhanova 8, Vladivostok 690950, Russia
- ITEP, B. Cheremushkinskaya 25, Moscow 117218, Russia
| | - J Schliemann
- Institute for Theoretical Physics, University of Regensburg, D-93040 Regensburg, Germany
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Parida P, Kundu A, Pati SK. One-dimensional organometallic V–anthracene wire and its B–N analogue: efficient half-metallic spin filters. Phys Chem Chem Phys 2010; 12:6924-7. [DOI: 10.1039/c004653c] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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Parida P, Lakshmi S, Pati SK. Negative differential resistance in nanoscale transport in the Coulomb blockade regime. J Phys Condens Matter 2009; 21:095301. [PMID: 21817384 DOI: 10.1088/0953-8984/21/9/095301] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Motivated by recent experiments, we have studied the transport behavior of coupled quantum dot systems in the Coulomb blockade regime using the master (rate) equation approach. We explore how electron-electron interactions in a donor-acceptor system, resembling weakly coupled quantum dots with varying charging energy, can modify the system's response to an external bias, taking it from normal Coulomb blockade behavior to negative differential resistance (NDR) in the current-voltage characteristics.
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Affiliation(s)
- Prakash Parida
- Theoretical Sciences Unit, Jawaharlal Nehru Centre For Advanced Scientific Research, Jakkur Campus, Bangalore 560064, India. DST Unit on Nanoscience, Jakkur Campus, Bangalore 560064, India
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Mallajosyula SS, Parida P, Pati SK. Organometallic vanadium-borazine systems: efficient one-dimensional half-metallic spin filters. ACTA ACUST UNITED AC 2009. [DOI: 10.1039/b810089f] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Das B, Jena RK, Swain KP, Parida P. Emerging resistance of Plasmodium falciparum to artemisinine and related compounds. J Assoc Physicians India 2000; 48:443-4. [PMID: 11273187] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/19/2023]
Affiliation(s)
- B Das
- Department of Medicine, SCB Medical College, Cuttack, Orissa-753 007
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Parida P. Plague: the living bomb. Nurs J India 1994; 85:285-7. [PMID: 7596844] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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