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Sofi MY, Khan MS, Ali J, Khan MA. Exploring the lead-free halide Cs 2MGaBr 6 (M = Li, Na) double perovskites for sustainable energy applications. Sci Rep 2024; 14:5520. [PMID: 38448489 DOI: 10.1038/s41598-024-54386-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Accepted: 02/12/2024] [Indexed: 03/08/2024] Open
Abstract
In recent years, there has been a growing emphasis on the exploration of sustainable and eco-friendly materials well-suited for advanced applications in the realms of thermoelectrics and optoelectronics. Lead-free halide double perovskites have emerged as a compelling class of materials in this context. Nevertheless, despite their potential utility, thorough investigations into their thermal transport characteristics remain limited. In this systematic investigation, we employ density functional theory (DFT) and post-DFT techniques to elucidate the essential stability parameters, transport properties, and carrier-lattice interactions of the metal halide-based Cs2MGaBr6 (X = Li, Ga) double perovskites. Our assessment of structural stability involves a meticulous description of stability index parameters and the optimization of pristine structures using the GGA-PBE potential. Additionally, we calibrate the electronic structure while taking spin-orbit coupling (SOC) effects into consideration by using a combination of GGA and GGA + mBJ potentials. Our findings reveal that the TB-mBJ derived band gaps of 1.82 eV and 1.78 eV for Cs2LiGaBr6 and Cs2NaGaBr6 reside within the visible spectrum, prompting further investigation into their thermal transport characteristics. Moreover, we analyze the phonon characteristics and vibrational modes, extending our investigation to examine the electron-phonon coupling strength. The scrutiny of the Fröhlich coupling constant and the Feynman polaron radius unveils a stronger electron-phonon coupling strength. In the domain of thermoelectrics, the significant figure of merit (zT) values of 1.08 and 1.04 for Cs2LiGaBr6 and Cs2NaGaBr6, respectively, emphasize the considerable potential of these materials for deployment in renewable energy applications. Furthermore, our computational investigation into optical properties, including the dielectric constant, optical absorption, and refractive index, demonstrates optimal performance within the visible spectrum. Specifically, elevated absorption coefficient values of 30 × 10 4cm - 1 for Cs2LiGaBr6 and 40 × 10 4cm - 1 for Cs2NaGaBr6 are noted across visible and infrared spectra, highlighting their promising potential in optoelectronic and solar cell technologies.
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Affiliation(s)
| | - Mohd Shahid Khan
- Department of Physics, Jamia Millia Islamia, New Delhi, 110025, India
| | - Javid Ali
- Department of Physics, Jamia Millia Islamia, New Delhi, 110025, India
| | - M Ajmal Khan
- Department of Physics, Jamia Millia Islamia, New Delhi, 110025, India.
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Mohsin Ali S, Saeed MU, Elansary HO, Saeed Y. Exploring optoelectronic and photocatalytic properties of X 2AgBiY 6 (X = NH 4, PH 4, AsH 4, SbH 4 and Y = Cl, Br): a DFT study. RSC Adv 2024; 14:3178-3185. [PMID: 38249669 PMCID: PMC10798297 DOI: 10.1039/d3ra07460a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Accepted: 12/19/2023] [Indexed: 01/23/2024] Open
Abstract
Ab initio calculations have been used to investigate lead-free double-perovskites (DPs) X2AgBiY6 (X = NH4, PH4, AsH4, SbH4 and Y = Cl, Br) for solar-cell-based energy sources. The most recent and improved Becke-Johnson potential (TB-mBJ) has been proposed for the computation of optoelectronic properties. Theoretical and calculated values of the lattice constants obtained by applying the Wu-Cohen generalized gradient approximation (WC-GGA) were found to be in good agreement. The computed bandgap values of (NH4)2AgBiBr6 (1.574 eV) and (SbH4)2AgBiBr6 (1.440 eV) revealed their indirect character, demonstrating that they are suitable contenders for visible light solar-cell (SC) technology. Properties like the refractive index, light absorption, reflection, and dielectric constant are all explained in terms of the optical ranges. Within the wavelength range of 620-310 nm, the maximum absorption band has been identified. Additionally, we discover that all chemicals investigated herein have photocatalytic capabilities that can be used to efficiently produce hydrogen at cheap cost using solar water splitting by photocatalysts. In addition, the stability of the compounds was examined using the calculation of mechanical properties.
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Affiliation(s)
- Sardar Mohsin Ali
- Department of Physics, Abbottabad University of Science and Technology Abbottabad KPK Pakistan +(92)-3454041865
| | - M Usman Saeed
- Department of Physics, Abbottabad University of Science and Technology Abbottabad KPK Pakistan +(92)-3454041865
| | - Hosam O Elansary
- Prince Sultan Bin Abdulaziz International Prize for Water Chair, Prince Sultan Institute for Environmental, Water and Desert Research, King Saud University Riyadh 11451 Saudi Arabia
- Department of Plant Production, College of Food Agriculture Sciences, King Saud University Riyadh 11451 Saudi Arabia
| | - Y Saeed
- Department of Physics, Abbottabad University of Science and Technology Abbottabad KPK Pakistan +(92)-3454041865
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Mustafa GM, Slam A, Saba S, Noor N, Waqas Iqbal M, Dahshan A. Optoelectronic and thermoelectric characteristics of halide based double perovskites K2YAgX6 (X = Br, I) for energy storage applications. Polyhedron 2023. [DOI: 10.1016/j.poly.2022.116184] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Soni Y, Rani U, Shukla A, Joshi TK, Verma AS. Transition metal-based halides double Cs2ZSbX6 (Z = Ag, Cu, and X = Cl, Br, I) perovskites: A mechanically stable and highly absorptive materials for photovoltaic devices. J SOLID STATE CHEM 2022. [DOI: 10.1016/j.jssc.2022.123420] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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Zuo T, Qi F, Yam C, Meng L. Lead-free all-inorganic halide double perovskite materials for optoelectronic applications: progress, performance and design. Phys Chem Chem Phys 2022; 24:26948-26961. [DOI: 10.1039/d2cp03463h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
The geometrical and electronic structures of all-inorganic halide double perovskites and their applications in optoelectronic devices are reviewed. Novel design methods are desirable to develop this type of perovskite with superior performance.
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Affiliation(s)
- Tao Zuo
- CAS Key Laboratory of Design and Assembly of Functional Nanostructures, and Fujian Provincial Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, P. R. China
| | - Fangfang Qi
- CAS Key Laboratory of Design and Assembly of Functional Nanostructures, and Fujian Provincial Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, P. R. China
- College of Chemistry and Materials Science, Fujian Normal University, Fuzhou, Fujian 350007, P. R. China
| | - ChiYung Yam
- Shenzhen Institute for Advanced Study, University of Electronic Science and Technology of China, Shenzhen, 518000, China
- Hong Kong Quantum AI Lab Limited, Hong Kong, China
| | - Lingyi Meng
- CAS Key Laboratory of Design and Assembly of Functional Nanostructures, and Fujian Provincial Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, P. R. China
- College of Chemistry and Materials Science, Fujian Normal University, Fuzhou, Fujian 350007, P. R. China
- Xiamen Key Laboratory of Rare Earth Photoelectric Functional Materials, Xiamen Institute of Rare Earth Materials, Haixi Institutes, Chinese Academy of Sciences, Xiamen 361021, P. R. China
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Aktary M, Kamruzzaman M, Afrose R. A comparative study of the mechanical stability, electronic, optical and photocatalytic properties of CsPbX 3 (X = Cl, Br, I) by DFT calculations for optoelectronic applications. RSC Adv 2022; 12:23704-23717. [PMID: 36090433 PMCID: PMC9390720 DOI: 10.1039/d2ra04591e] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2022] [Accepted: 08/05/2022] [Indexed: 11/21/2022] Open
Abstract
Organic free Cs-based perovskite materials are potential candidates for electronic and optoelectronic applications. A systematic comparative study of the mechanical, electronic, optical, and photocatalytic properties of CsPbX3 (X = Cl, Br, I) was conducted using density functional theory to compare the applicability of these materials in optoelectronic, photocatalytic, and photovoltaic (PV) devices. We calculated structural and elastic properties to determine the better agreement of damage-tolerance and electronic and optical responses for suitable device applications. Optimized lattice parameters and elastic constants showed excellent agreement with the experimental data whereas some properties were found to be much better than other theoretical reports. CsPbBr3 is thermodynamically more stable and more ductile compared to the other two perovskites. The hydrostatic pressure dependent mechanical stability showed that CsPbCl3 and CsPbBr3 sustained stability under low applied pressure, whereas the stability of CsPbI3 was very high. The electronic band gap calculations showed that CsPbCl3, CsPbBr3, and CsPbI3 are suitable for green, orange, and red emissions of optical spectra owing to the proper electronic band gaps. CsPbI3 can be shown as the best photocatalyst for the hydrogen evolution reaction and CsPbBr3 is the most stable photocatalyst due to its nearly balanced oxidation and reduction potentials, but CaPbCl3 is better for O2 production. The density of states and other optical properties have been reported in this study. Thus, our findings would be beneficial for experimental studies and can open a new window for efficient electronic, optoelectronic, and hydrogen production along with the biodegradation of polluted and waste materials. Organic free Cs-based perovskite materials are potential candidates for electronic and optoelectronic applications.![]()
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Affiliation(s)
- M. Aktary
- Department of Physics, Begum Rokeya University, Rangpur, Rangpur-5400, Bangladesh
| | - M. Kamruzzaman
- Department of Physics, Begum Rokeya University, Rangpur, Rangpur-5400, Bangladesh
| | - R. Afrose
- Department of Physics, Begum Rokeya University, Rangpur, Rangpur-5400, Bangladesh
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Nabi M, Gupta DC. Potential lead-free small band gap halide double perovskites Cs 2CuMCl 6 (M = Sb, Bi) for green technology. Sci Rep 2021; 11:12945. [PMID: 34155308 PMCID: PMC8217524 DOI: 10.1038/s41598-021-92443-1] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2021] [Accepted: 06/07/2021] [Indexed: 02/05/2023] Open
Abstract
Explorations of stable lead-free perovskites have currently achieved substantial interest to overcome the instability and avoid toxicity related issue faced with the lead-based perovskites. In this study, we have comprehensively studied the stability, nature and origin of electronic, transport and optical properties of inorganic halide double perovskites, which could provide a better understanding of their possible potential applications. The density functional theory is used to investigate the different physical properties of these materials. The stability of these cubic materials is validated by optimizing the structure, tolerance factor, mechanical stability test. The materials are small band gap semiconductors with outshining optoelectronic performance. Due to high optical absorption, high conductivity and low reflectivity they have great potential to be used for optoelectronic application purpose. Because of small band gap we have also investigated the variation of various transport parameters with chemical potential. The semiconducting nature of materials results in ZT close to unity predicting its excellent application in thermoelectric technology.
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Affiliation(s)
- Muskan Nabi
- Condensed Matter Theory Group, School of Studies in Physics, Jiwaji University, Gwalior, 474 011, India
| | - Dinesh C Gupta
- Condensed Matter Theory Group, School of Studies in Physics, Jiwaji University, Gwalior, 474 011, India.
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Kale AJ, Chaurasiya R, Dixit A. Inorganic Lead‐Free Cs
2
AuBiCl
6
Perovskite Absorber and Cu
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O Hole Transport Material Based Single‐Junction Solar Cells with 22.18% Power Conversion Efficiency. ADVANCED THEORY AND SIMULATIONS 2021. [DOI: 10.1002/adts.202000224] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Abhijeet J. Kale
- Department of Physics Indian Institute of Technology Jodhpur Jodhpur 342037 India
| | - Rajneesh Chaurasiya
- Department of Physics Indian Institute of Technology Jodhpur Jodhpur 342037 India
| | - Ambesh Dixit
- Department of Physics Indian Institute of Technology Jodhpur Jodhpur 342037 India
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Abstract
In view of their applicability in optoelectronics, we review here the relevant structural, electronic, and optical features of the inorganic Pb-free halide perovskite class. In particular, after discussing the reasons that have motivated their introduction in opposition to their more widely investigated organic-inorganic counterparts, we highlight milestones already achieved in their synthesis and characterization and show how the use of ab initio ground and excited state methods is relevant in predicting their properties and in disclosing yet unsolved issues which characterize both ternary and quaternary stoichiometry double-perovskites.
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