1
|
Husain M, Rahman N, Albalawi H, Ezzine S, Amami M, Zaman T, Rehman AU, Sohail M, Khan R, Khan AA, Tahir, Khan A. Examining computationally the structural, elastic, optical, and electronic properties of CaQCl 3 (Q = Li and K) chloroperovskites using DFT framework. RSC Adv 2022; 12:32338-32349. [PMID: 36425682 PMCID: PMC9650526 DOI: 10.1039/d2ra05602j] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Accepted: 11/03/2022] [Indexed: 08/24/2023] Open
Abstract
This study presents the investigations of structural, elastic, optical, and electronic properties of CaQCl3 (Q = Li and K) chloroperovskites for the first time using the DFT framework. The WIEN2K and IRelast packages are used in which the exchange-correlation potential of the modified Becke-Johnson potential (TB-mBJ) is used for obtaining better results. The optimized crystal structural parameters comprising the lattice constant, optimum volume, ground state energy, bulk modulus, and the pressure derivative of bulk modulus are computed by fitting the primitive unit cell energy versus primitive unit cell volume using the Birch-Murnaghan equation of state. The elastic properties which consist of cubic elastic constants, Poisson's ratio, elastic moduli, anisotropy factor, and the Pugh ratio are computed using the very precise IRelast package incorporated inside WIEN2K. The electronic properties are analyzed from the computation of electronic bands structure and density of states (DOS), and it is concluded that an indirect band gap of 4.6 eV exists for CaLiCl3 and a direct band gap of 3.3 eV for CaKCl3 which confirms that CaLiCl3 is an insulator while CaKCl3 is a wide band gap semiconductor. The analysis of DOS shows that the greater contribution to the conduction band (CB) occurs because of the "Ca" element whereas in the valence band the major contribution is from the "Cl" element. The spectral curves of various parameters of optical properties from 0 eV up to 42 eV incident photon energies are observed and it is found that the CaQCl3 (Q = Li and K) chloroperovskites are optically active having a high absorption coefficient, optical conductivity, optical reflectivity, and energy loss function from 25 eV to 35 eV incident photon energies. The applications of these materials can be deemed to alter or control electromagnetic radiation in the ultraviolet (UV) spectral regions. In summary, the results for selected CaQCl3 (Q = Li and K) chloroperovskites depict that these are important compounds and can be used as scintillators, and energy storage devices, and in many modern electronic gadgets.
Collapse
Affiliation(s)
- Mudasser Husain
- Department of Physics, University of Lakki Marwat 28420 Lakki Marwat KPK Pakistan
| | - Nasir Rahman
- Department of Physics, University of Lakki Marwat 28420 Lakki Marwat KPK Pakistan
| | - Hind Albalawi
- Department of Physics, College of Sciences, Princess Nourah bint Abdulrahman University (PNU) P.O. Box 84428 Riyadh 11671 Saudi Arabia
| | - Safa Ezzine
- Department of Chemistry, College of Sciences, King Khalid University Abha Saudi Arabia
- Laboratoire des Matériaux et de L'Environnement Pour le Développement Durable LR18ES10 9 Avenue Dr. Zoheir Sai Tunis 1006 Tunisia
| | - Mongi Amami
- Department of Chemistry, College of Sciences, King Khalid University Abha Saudi Arabia
| | - Tahir Zaman
- Department of Mathematics, Government Post Graduate College Karak KPK Pakistan
| | - Altaf Ur Rehman
- Department of Physics, Riphah International University Lahore 54000 Pakistan
| | - Mohammad Sohail
- Department of Physics, University of Lakki Marwat 28420 Lakki Marwat KPK Pakistan
| | - Rajwali Khan
- Department of Physics, University of Lakki Marwat 28420 Lakki Marwat KPK Pakistan
| | - Abid Ali Khan
- Department of Chemical Sciences, University of Lakki Marwat 28420 Lakki Marwat KPK Pakistan
| | - Tahir
- Department of Physics, Pontifícia Universidade Católica do Rio de Janeiro Rua Marques de São Vicente 22451-900 Rio de Janeiro Brazil
| | - Aurangzeb Khan
- Department of Physics, Abdul Wali Khan University Mardan 23200 KPK Pakistan
- University of Lakki Marwat 28420 Lakki Marwat KPK Pakistan
| |
Collapse
|
2
|
Torres P, Wu S, Ju S, Liu C, Tadano T, Yoshida R, Shiomi J. Descriptors of intrinsic hydrodynamic thermal transport: screening a phonon database in a machine learning approach. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2022; 34:135702. [PMID: 35008073 DOI: 10.1088/1361-648x/ac49c9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Accepted: 01/10/2022] [Indexed: 06/14/2023]
Abstract
Machine learning techniques are used to explore the intrinsic origins of the hydrodynamic thermal transport and to find new materials interesting for science and engineering. The hydrodynamic thermal transport is governed intrinsically by the hydrodynamic scale and the thermal conductivity. The correlations between these intrinsic properties and harmonic and anharmonic properties, and a large number of compositional (290) and structural (1224) descriptors of 131 crystal compound materials are obtained, revealing some of the key descriptors that determines the magnitude of the intrinsic hydrodynamic effects, most of them related with the phonon relaxation times. Then, a trained black-box model is applied to screen more than 5000 materials. The results identify materials with potential technological applications. Understanding the properties correlated to hydrodynamic thermal transport can help to find new thermoelectric materials and on the design of new materials to ease the heat dissipation in electronic devices.
Collapse
Affiliation(s)
- Pol Torres
- Department of Mechanical Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo, 113-8656, Japan
- EURECAT, Technology Center of Catalonia, Applied Artificial Intelligence, 08290 Cerdanyola, Barcelona, Spain
- Departament de Física, Universitat Autònoma de Barcelona (UAB), Campus de Bellaterra, 08193 Bellaterra, Barcelona, Spain
| | - Stephen Wu
- Research Organization of Information and Systems, The Institute of Statistical Mathematics (ISM), 10-3 Midori-cho, Tachikawa, Tokyo 190-8562, Japan
| | - Shenghong Ju
- Department of Mechanical Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo, 113-8656, Japan
- China-UK Low Carbon Collage, Shanghai Jiao Tong University, Shanghai 201306, People's Republic of China
| | - Chang Liu
- Research Organization of Information and Systems, The Institute of Statistical Mathematics (ISM), 10-3 Midori-cho, Tachikawa, Tokyo 190-8562, Japan
| | - Terumasa Tadano
- Research Center for Magnetic and Spintronic Materials, National Institute for Materials and Science, Tsukuba, Japan
| | - Ryo Yoshida
- Research Organization of Information and Systems, The Institute of Statistical Mathematics (ISM), 10-3 Midori-cho, Tachikawa, Tokyo 190-8562, Japan
- Center for Materials Research by Information Integration (CMI2), Research and Services Division of Materials Data and Integrated System (MaDIS), National Institute for Materials Science (NIMS), 1-2-1 Sengen, Tsukuba, Ibaraki 305-0047, Japan
| | - Junichiro Shiomi
- Department of Mechanical Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo, 113-8656, Japan
| |
Collapse
|
3
|
Bafekry A, Faraji M, Karbasizadeh S, Jappor HR, Sarsari IA, Ghergherehchi M, Gogova D. Investigation of vacancy defects and substitutional doping in AlSb monolayer with double layer honeycomb structure: a first-principles calculation. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2021; 34:065701. [PMID: 34731833 DOI: 10.1088/1361-648x/ac360a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Accepted: 11/03/2021] [Indexed: 06/13/2023]
Abstract
The experimental knowledge of the AlSb monolayer with double layer honeycomb structure is largely based on the recent publication (Le Qinet al2021ACS Nano158184), where this monolayer was recently synthesized. Therefore, the aim of our research is to consequently explore the effects of substitutional doping and vacancy point defects on the electronic and magnetic properties of the novel hexagonal AlSb monolayer. Besides experimental reports, the phonon band structure and cohesive energy calculations confirm the stability of the AlSb monolayer. Its direct bandgap has been estimated to be 0.9 eV via the hybrid functional method, which is smaller than the value of 1.6 eV of bulk material. The majority of vacancy defects and substitutional dopants change the electronic properties of the AlSb monolayer from semiconducting to metallic. Moreover, the MgSbimpurity has demonstrated the addition of ferromagnetic behavior to the material. It is revealed through the calculation of formation energy that in Al-rich conditions, the vacant site of VSbis the most stable, while in Sb-rich circumstances the point defect of VAlgets the title. The formation energy has also been calculated for the substitutional dopants, showing relative stability of the defected structures. We undertook this theoretical study to inspire many experimentalists to focus their efforts on AlSb monolayer growth incorporating different impurities. It has been shown here that defect engineering is a powerful tool to tune the properties of novel AlSb two-dimensional monolayer for advanced nanoelectronic applications.
Collapse
Affiliation(s)
- A Bafekry
- Department of Radiation Application, Shahid Beheshti University, Tehran, Iran
| | - M Faraji
- Micro and Nanotechnology Graduate Program, TOBB University of Economics and Technology, Sogutozu Caddesi No. 43 Sogutozu, 06560, Ankara, Turkey
| | - S Karbasizadeh
- Department of Physics, Isfahan University of Technology, Isfahan, 84156-83111, Iran
| | - H R Jappor
- Department of Physics, College of Education for Pure Sciences, University of Babylon, Hilla, Iraq
| | | | - M Ghergherehchi
- Department of Electrical and Computer Engineering, Sungkyunkwan University, 16419 Suwon, Republic of Korea
| | - D Gogova
- Department of Physics, Chemistry and Biology, Linkoping University, 58183 Linköping, Sweden
| |
Collapse
|
4
|
Islam MR, Islam AJ, Liu K, Wang Z, Qu S, Wang Z. Strain engineering on the electronic, phonon, and optical properties of monolayer boron antimonide. Chem Phys 2021. [DOI: 10.1016/j.chemphys.2021.111334] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|