Mohammed A. Mamun, Shaila Akter, Imran Hossain, Mohammad Thanvir Hasan Faisal et al.
INTRODUCTION Unemployment has a contributory role in the development of mental health problems and in Bangladesh there is increasing unemployment, particularly among youth. Consequently, the present study investigated depression, anxiety, and stress among recent graduates in a multi-city study acros...
Istiak Ahmed Ovi, Md. Ratul Hasan, Imtiaz Ahamed Apon, Fatema-Tuz- Zahra
Abstract This study examines the physical properties of germanium-based halide perovskite through Density Functional Theory (DFT) computations. The physical, optical, mechanical, and magnetic properties of NaGeX 3 (X = Cl, Br, and I) were examined with the effects of hydrostatic pressure applied ext...
Md. Ratul Hasan, Imtiaz Ahamed Apon, Md. Mafidul Islam, Asab Uzzaman Azad et al.
Lead halide perovskites have distinct physiochemical properties and demonstrate remarkable power conversion efficiency. We used density functional theory to investigate the electrical, optical, structural, and elastic features of non-toxic InGeCl3 and InGeBr3 halide perovskite compounds at different...
Md Ratul Hasan, Imtiaz Ahamed Apon, Md. Mafidul Islam, Asab Uzzaman Azad et al.
This work examines the structural, electrical, and optical characteristics of lead-free tin-based halide perovskites, ASnCl 3 (A = Ga, In, and Tl), as environmentally friendly substitutes for lead-based perovskites in solar applications.
Md. Ratul Hasan, Imtiaz Ahamed Apon, Md. Abul Hossain
In this study, first-principles calculations were performed by different functionals to investigate the structural, electronic, and optical properties of Cs2NaSbBr6 double perovskite using density functional theory. The computed lattice constants a = 8.220 Å, Generalized Gradient Approximation-Perde...
Imtiaz Ahamed Apon, MD Ratul Hasan, Md. Mafidul Islam
Abstract Metal-halide perovskites have emerged as a revolutionary material in solar energy technology, offering exceptional light-harvesting efficiency, eco-friendly characteristics, and low production costs. These materials are paving the way for next-generation photovoltaic devices with their outs...
Imtiaz Ahamed Apon, Siam Jubayer, Rabah Boudissa, Riyad Kawsar et al.
Rifat Rafiu, Md. Sakib Hasan Saikot, Imtiaz Ahamed Apon, Imed Boukhris et al.
ABSTRACT This study presents a comprehensive first‐principles and device‐performance investigation of alkali metal‐based anti‐perovskites Z 3 BrO (Z = K, Rb, Cs, and Fr) for advanced optoelectronic and photovoltaic applications. Using density functional theory (DFT) with GGA‐PBE and mGGA‐rSCAN funct...
Rifat Rafiu, S. Shakir Hasan, Ali El‐Rayyes, Imtiaz Ahamed Apon et al.
Mariom Mariom, Md. Sakhawat Hossain, Rafiatul Jannat Rifa, Chandrika Mondal et al.
Rapid expansion of global aquaculture in recent decades has increased production but also amplified risks from pollution, pathogenic microbes, and bacterial infections. These issues have driven widespread antibiotic use, resulting in drug resistance, environmental degradation, and risks to human hea...
Md. Azizur Rahman, Avijit Ghosh, R. Jothi Ramalingam, Noureddine Elboughdiri et al.
This study employs first-principles calculations using Quantum Espresso to investigate the structural, thermodynamic, electrical, mechanical, and optical properties of the halide-based perovskite Ca 3 NBr 3 under varying pressures (−6 % to +6 %). Additionally, SCAPS-1D simulations were conducted to ...
Mehedi Hasan, Imtiaz Ahamed Apon, Md. Mafidul Islam, Jehan Y. Al‐Humaidi et al.
Md. Sakib Hasan Saikot, Rifat Rafiu, Imtiaz Ahamed Apon, Ali El‐Rayyes et al.
This study presents a comprehensive first-principles investigation of Pb- and Sn-based cubic perovskites (TiPbO 3 , TiSnO 3 , ZrPbO 3 , and ZrSnO 3 ) using DFT within GGA-PBE and m GGA-rSCAN frameworks.
Rifat Rafiu, Karim Kriaa, Md. Sakib Hasan Saikot, Md. Azizur Rahman et al.
The quest for efficient and durable absorber materials has steered attention toward double perovskites, which exhibit tunable band gaps and strong optical absorption, making them promising candidates for next-generation solar cell architectures.
Md. Azizur Rahman, Rifat Rafiu, Imtiaz Ahamed Apon, Md. Sakib Hasan Saikot et al.
Imtiaz Ahamed Apon, Md. Alamgir Hossain, Rifat Rafiu, Md. Sakib Hasan Saikot et al.
Imtiaz Ahamed Apon, Md. Ratul Hasan, Rifat Rafiu, Riyad Kawsar et al.
Md. Sakib Hasan Saikot, Rifat Rafiu, Imed Boukris, Md. Azizur Rahman et al.
This study presents a detailed first-principles investigation of lead-free double perovskites Li 2 PdCl 6 and Na 2 PdCl 6 to evaluate their suitability for high-efficiency solar cell applications.
Imtiaz Ahamed Apon, Karim Kriaa, Md. Azizur Rahman, Md. Alamgir Hossain et al.
All compounds have direct band gaps; Rb 2 SnBr 6 and Rb 2 PbCl 6 are semiconductors. They are thermodynamically, structurally, and mechanically stable with strong optical absorption. Rb 2 SnCl 6 and Rb 2 PbCl 2 are dynamically stable; PCEs: 20.44% and 21.84%.
Md. Sakhawat Hossain, Chandrika Mondal, Rafiatul Jannat Rifa, Imtiaz Ahamed et al.
Probiotics, notably lactic acid bacteria (LAB), provide an alternative to chemical treatments and therapeutics by improving microbial balance and supporting overall health. This study aimed to investigate the probiotic potential of LAB from Heteropneustes fossilis as feed additives in aquaculture. T...