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A$_{2}$BX$_{6}$ vacancy-ordered double perovskites (VODPs) have captured substantial research interest in the scientific community as they offer environmentally friendly and stable alternatives to lead halide perovskites. In this study, we…

Materials Science · Physics 2024-11-11 Surajit Adhikari , Priya Johari

In the search for stable lead (Pb) free perovskites, Vacancy ordered double perovskite (VODP), A$_2$BX$_6$ has emerged as a promising class of materials for solar harvesting owing to their nontoxicity, better stability, and unique…

Materials Science · Physics 2023-09-13 Supriti Ghorui , Jiban Kangsabanik , M. Aslam , Aftab Alam

Vacancy ordered halide double perovskites (VODP) have been widely explored throughout the past few years as promising lead-free alternatives for optoelectronic applications. Yet, the atomic-scale mechanisms that underlie their optical…

Materials Science · Physics 2023-06-28 Bruno Cucco , Claudine Katan , Jacky Even , Mikael Kepenekian , George Volonakis

Vacancy-ordered double perovskites (VODPs) are promising alternatives to three-dimensional lead halide perovskites for optoelectronic and photovoltaic applications. Mixing these materials creates a vast compositional space, allowing for…

Materials Science · Physics 2025-01-27 Fan Zhang , Li Fu , Weiwei Gao , Peihong Zhang , Jijun Zhao

The vacancy-ordered double perovskites (VODP) are emerging materials for the renewable energy because of their extraordinary stability. In the present work, we have addressed the structural, electronic and optical properties of the…

Computational Physics · Physics 2023-02-27 M. Talebi , A. Mokhtari

The discovery of lead free all-inorganic alloyed double perovskites have revolutionized photovoltaic research, showing promising light emitting efficiency and its tunability. However, detailed studies regarding optical, exciton, polaron and…

Materials Science · Physics 2021-10-26 Manjari Jain , Manish Kumar , Preeti Bhumla , Saswata Bhattacharya

Antiperovskite derivatives have emerged as promising candidates for optoelectronic applications. However, due to the significant computational cost, their excitonic and polaronic properties remain underexplored despite being critical for…

Materials Science · Physics 2025-10-23 Ayan Chakravorty , Surajit Adhikari , Priya Johari

Dimensionality engineering in A$_{n+1}$B$_n$X$_{3n+1}$ Ruddlesden-Popper (RP) perovskite phases has emerged as a promising strategy to enhance optoelectronic properties. These properties are highly material-dependent, requiring detailed…

Materials Science · Physics 2025-03-04 Surajit Adhikari , Aksaj Bharatwaj , Priya Johari

Vacancy-ordered double perovskites have emerged as lead-free alternatives, offering remarkable stability and compositional tunability for optoelectronic applications. In this study, we provide first-principles insights into their electronic…

Materials Science · Physics 2026-04-01 Ibrahim Buba Garba , George Volonakis

Vacancy-ordered double perovskites (A$_2$BX$_6$), being one of the environmentally friendly and stable alternatives to lead halide perovskites, have garnered considerable research attention in the scientific community. However, their…

Materials Science · Physics 2023-05-02 Preeti Bhumla , Manjari Jain , Sajjan Sheoran , Saswata Bhattacharya

Vacancy ordered halide perovskites have been extensively investigated as promising lead-free alternatives to halide perovskites for various opto-electronic applications. Among these Cs$_{2}$TiBr$_{6}$ has been reported as a stable absorber…

Materials Science · Physics 2023-06-28 B. Cucco , G. Bouder , L. Pedesseau , C. Katan , J. Even , M. Kepenekian , G. Volonakis

Organic-inorganic hybrid double perovskites have attracted increasing interest in the commercialization of lead-free and nontoxic perovskites due to their unique optoelectronic properties compared with inorganic perovskites. In this study,…

Applied Physics · Physics 2023-06-14 A. Johnson , B. A. Ikyo , T. J. Ikyumbur , F. Gbaorun , A. A. Nathan

Hybrid Lead halide perovskites, despite having unique intrinsic properties with the possibility of flexible synthesis and device fabrication, still suffer from two fundamental issues, i.e. stability in external environment and toxicity due…

Materials Science · Physics 2018-05-16 Jiban Kangsabanik , Vipinraj Sugathan , Anuradha Yadav , Aswani Yella , Aftab Alam

Owing to the energy shortages and various severe adverse effects of traditional fossil fuel power generation mechanisms, photovoltaic and thermoelectric materials are considered as the potential candidates for building non-traditional,…

Materials Science · Physics 2022-08-09 Syed Zuhair Abbas Shah , Shanawer Niaz , Tabassum Nasir , James Sifuna

Inorganic metal-halide cubic perovskite semiconductors have become more popular in industrial applications of photovoltaic and optoelectronic devices. Among various perovskites, lead-free materials are currently most explored due to their…

Materials Science · Physics 2022-03-17 Nazmul Hasan , Md Arifuzzaman , Alamgir Kabir

In contrast to lead-based perovskites, double perovskites have attracted considerable interest due to their ability to modulate photovoltaic properties and high stability through elemental control. However, most double perovskites are…

Materials Science · Physics 2024-11-01 Yue Kuai , Changcheng Chen , Pengfei Lu

Hybrid organic/inorganic perovskites have emerged as efficient semiconductor materials for applications in photovoltaic solar cells with conversion efficiency above 20 \%. Recent experiments have synthesized ultra-thin two-dimensional (2D)…

Materials Science · Physics 2018-12-12 Alejandro Molina-Sánchez

Antiperovskite derivatives have recently emerged as promising lead-free alternatives to halide perovskites for optoelectronic applications. Here, using a comprehensive first-principles calculations including density functional perturbation…

Materials Science · Physics 2026-04-03 Surajit Adhikari , Aftab Alam , Priya Johari

Hybrid peroskite solar cells are newly emergent high-performance photovoltaic devices, which suffer from disadvantages such as toxic elements, short-term stabilities, and so on. Searching for alternative perovskites with high photovoltaic…

Materials Science · Physics 2023-08-02 Linkang Zhan , Danfeng Ye , Xinjian Qiu , Yan Cen

In this study, we investigate the structural properties, chemical stability, and electronic, optical, and thermoelectric properties of $\mathrm{Sr_2PrSbO_6}$ using first-principles calculations based on Density Functional Theory (DFT). The…

Materials Science · Physics 2025-10-22 Md. Mohiuddin , Alamgir Kabir
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