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Bafekry A, Fadlallah MM, Faraji M, Shafique A, Jappor HR, Sarsari IA, Ang YS, Ghergherehchi M. Reply to the 'Comment on "Two-dimensional penta-like PdPSe with a puckered pentagonal structure: a first-principles study"' by S. Chowdhury, F. Shojaei and B. Mortazavi, Phys. Chem. Chem. Phys., 2023, 25, DOI: 10.1039/D2CP01587K. Phys Chem Chem Phys 2023; 25:8966-8968. [PMID: 36892178 DOI: 10.1039/d2cp04267c] [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: 03/10/2023]
Abstract
We respond to the recent criticism of our paper [Phys. Chem. Chem. Phys., 2022, 24, 9990–9997] and provide further discussion on the analysis of the PdPSe monolayer.
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Affiliation(s)
- Asadollah Bafekry
- Department of Radiation Application, Shahid Beheshti University, Tehran 1983969411, Iran.
| | - Mohamed M Fadlallah
- Department of Physics, Faculty of Science, Benha University, 13518 Benha, Egypt
| | - Mehrdad Faraji
- Micro and Nanotechnology Graduate Program, TOBB University of Economics and Technology, Sogutozu 06560, Ankara, Turkey
| | - A Shafique
- Department of Physics, Lahore University of Management Sciences, Lahore, Pakistan
| | - Hamad R Jappor
- Department of Physics, College of Education for Pure Sciences, University of Babylon, Hilla, Iraq
| | | | - Yee Sin Ang
- Science, Mathematics and Technology (SMT) Cluster, Singapore University of Technology and Design, 487372, Singapore
| | - Mitra Ghergherehchi
- Department of Electrical and Computer Engineering, Sungkyunkwan University, 16419 Suwon, South Korea
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Bafekry A, Fadlallah MM, Faraji M, Shafique A, Jappor HR, Abdolhoseini Sarsari I, Ang YS, Ghergherehchi M. Two-dimensional penta-like PdPSe with a puckered pentagonal structure: a first-principles study. Phys Chem Chem Phys 2022; 24:9990-9997. [PMID: 35388377 DOI: 10.1039/d1cp04328e] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Low-symmetry penta-PdPSe (Pd4P4Se4) with intrinsic in-plane anisotropy was synthesized successfully [P. Li et al., Adv. Mater., 2021, 2102541]. Motivated by this experimental discovery, we investigate the structural, mechanical, electronic, optical and thermoelectric properties of PdPSe nanosheets via density functional theory calculations. The phonon dispersion, molecular dynamics simulation, and cohesive energy mechanical properties of the penta-PdPSe are verified to confirm its stability. The phonon spectrum represents a striking gap between the high-frequency and the low-frequency optical branches and an out-of-plane flexure mode with a quadratic dispersion in the long-wavelength limit. The Poisson's ratio indicates that penta-PdPSe is a brittle nanosheet. The penta-PdPSe is a semiconductor with an indirect bandgap of 1.40 (2.07) eV using the PBE functional (HSE06 hybrid functional). Optical properties simulation suggests that PdPSe is capable of absorbing a substantial range of visible to ultraviolet light. Band alignment analysis also reveals the compatibility of PdPSe for water splitting photocatalysis application. By combining the electrical and thermal transport properties of PdPSe, we show that a high power factor is achievable at room temperature, thus making PdPSe a candidate material for thermoelectric applications. Our findings reveal the strong potential of penta-PdPSe nanosheets for a wide array of applications, including optoelectronic, water splitting and thermoelectric device applications.
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Affiliation(s)
- A Bafekry
- Department of Physics, University of Guilan, Rasht 41335-1914, Iran. .,Department of Physics, Rasht Branch, Islamic Azad University, Rasht, Iran
| | - M M Fadlallah
- Department of Physics, Faculty of Science, Benha University, 13518 Benha, Egypt
| | - M Faraji
- Micro and Nanotechnology Graduate Program, TOBB University of Economics and Technology, Sogutozu Caddesi No 43 Sogutozu, 06560, Ankara, Turkey
| | - A Shafique
- Department of Physics, Lahore University of Management Sciences, Lahore, Pakistan
| | - H R Jappor
- Department of Physics, College of Education for Pure Sciences, University of Babylon, Hilla, Iraq
| | | | - Yee Sin Ang
- Science, Mathematics and Technology (SMT) Cluster, Singapore University of Technology and Design, 487372, Singapore
| | - M Ghergherehchi
- Department of Electrical and Computer Engineering, Sungkyunkwan University, 16419 Suwon, Korea
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Bafekry A, Mortazavi B, Faraji M, Shahrokhi M, Shafique A, Jappor HR, Nguyen C, Ghergherehchi M, Feghhi SAH. Ab initio prediction of semiconductivity in a novel two-dimensional Sb 2X 3 (X= S, Se, Te) monolayers with orthorhombic structure. Sci Rep 2021; 11:10366. [PMID: 33990674 PMCID: PMC8121886 DOI: 10.1038/s41598-021-89944-4] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Accepted: 04/28/2021] [Indexed: 02/04/2023] Open
Abstract
[Formula: see text] and [Formula: see text] are well-known layered bulk structures with weak van der Waals interactions. In this work we explore the atomic lattice, dynamical stability, electronic and optical properties of [Formula: see text], [Formula: see text] and [Formula: see text] monolayers using the density functional theory simulations. Molecular dynamics and phonon dispersion results show the desirable thermal and dynamical stability of studied nanosheets. On the basis of HSE06 and PBE/GGA functionals, we show that all the considered novel monolayers are semiconductors. Using the HSE06 functional the electronic bandgap of [Formula: see text], [Formula: see text] and [Formula: see text] monolayers are predicted to be 2.15, 1.35 and 1.37 eV, respectively. Optical simulations show that the first absorption coefficient peak for [Formula: see text], [Formula: see text] and [Formula: see text] monolayers along in-plane polarization is suitable for the absorption of the visible and IR range of light. Interestingly, optically anisotropic character along planar directions can be desirable for polarization-sensitive photodetectors. Furthermore, we systematically investigate the electrical transport properties with combined first-principles and Boltzmann transport theory calculations. At optimal doping concentration, we found the considerable larger power factor values of 2.69, 4.91, and 5.45 for hole-doped [Formula: see text], [Formula: see text], and [Formula: see text], respectively. This study highlights the bright prospect for the application of [Formula: see text], [Formula: see text] and [Formula: see text] nanosheets in novel electronic, optical and energy conversion systems.
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Affiliation(s)
- A Bafekry
- Department of Radiation Application, Shahid Beheshti University, Tehran, Iran.
- Department of Physics, University of Antwerp, Groenenborgerlaan 171, 2020, Antwerp, Belgium.
| | - B Mortazavi
- Chair of Computational Science and Simulation Technology, Institute of Photonics, Department of Mathematics and Physics, Leibniz University of Hannover, Appelstrae 11, 30157, Hannover, Germany
| | - M Faraji
- Micro and Nanotechnology Graduate Program, TOBB University of Economics and Technology, Sogutozu Caddesi No 43 Sogutozu, 06560, Ankara, Turkey
| | - M Shahrokhi
- Department of Physics, Faculty of Science, University of Kurdistan, Sanandaj, 66177-15175, Iran
| | - A Shafique
- Department of Physics, Lahore University of Management Sciences, Lahore, Pakistan
| | - H R Jappor
- Department of Physics, College of Education for Pure Sciences, University of Babylon, Hilla, Iraq
| | - C Nguyen
- Department of Materials Science and Engineering, Le Quy Don Technical University, Ha Noi, 100000, Vietnam
| | - M Ghergherehchi
- Department of Electrical and Computer Engineering, Sungkyunkwan University, 16419, Suwon, Korea.
| | - S A H Feghhi
- Department of Radiation Application, Shahid Beheshti University, Tehran, Iran
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Bafekry A, Shahrokhi M, Shafique A, Jappor HR, Shojaei F, Feghhi SAH, Ghergherehchi M, Gogova D. Two-dimensional carbon nitride C 6N nanosheet with egg-comb-like structure and electronic properties of a semimetal. Nanotechnology 2021; 32:215702. [PMID: 33339018 DOI: 10.1088/1361-6528/abd50c] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/04/2020] [Accepted: 12/18/2020] [Indexed: 06/12/2023]
Abstract
In this study, the structural, electronic and optical properties of theoretically predicted C6N monolayer structure are investigated by means of Density Functional Theory-based First-Principles Calculations. Phonon band dispersion calculations and molecular dynamics simulations reveal the dynamical and thermal stability of the C6N single-layer structure. We found out that the C6N monolayer has large negative in-plane Poisson's ratios along bothXandYdirection and the both values are almost four times that of the famous-pentagraphene. The electronic structure shows that C6N monolayer is a semi-metal and has a Dirac-point in the BZ. The optical analysis using the random phase approximation method constructed over HSE06 illustrates that the first peak of absorption coefficient of the C6N monolayer along all polarizations is located in theIRrange of spectrum, while the second absorption peak occurs in the visible range, which suggests its potential applications in optical and electronic devices. Interestingly, optically anisotropic character of this system is highly desirable for the design of polarization-sensitive photodetectors. Thermoelectric properties such as Seebeck coefficient, electrical conductivity, electronic thermal conductivity and power factor are investigated as a function of carrier doping at temperatures 300, 400, and 500 K. In general, we predict that the C6N monolayer could be a new platform for study of novel physical properties in two-dimensional semi-metal materials, which may provide new opportunities to realize high-speed low-dissipation devices.
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Affiliation(s)
- A Bafekry
- Department of Radiation Application, Shahid Beheshti University, Tehran, Iran
- Department of Physics, University of Antwerp, Groenenborgerlaan 171, B-2020 Antwerp, Belgium
| | - M Shahrokhi
- Department of Physics, Faculty of Science, University of Kurdistan, 66177-15175 Sanandaj, Iran
| | - A Shafique
- Department of Physics, Lahore University of Management Sciences, Lahore, Pakistan
| | - H R Jappor
- Department of Physics, College of Education for Pure Sciences, University of Babylon, Hilla, Iraq
| | - F Shojaei
- Department of Chemistry, Faculty of Sciences, Persian Gulf University, Bushehr 75169, Iran
| | - S A H Feghhi
- Department of Radiation Application, Shahid Beheshti University, Tehran, Iran
| | - M Ghergherehchi
- College of Electronic and Electrical Engineering, Sungkyunkwan University, Suwon, Republic of Korea
| | - D Gogova
- Department of Physics, University of Oslo, P.O. Box 1048, Blindern, Oslo, Norway
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Chu C, Roughneen S, Shafique A, Pearson L, Carroll N. 8 * TARGETING GERIATRICIAN SKILLS TO PATIENTS ON GENERAL SURGICAL WARDS. Age Ageing 2014. [DOI: 10.1093/ageing/afu036.8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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