Wayesh Qarony, Mohammad I. Hossain, M. Khalid Hossain, M. Jalal Uddin et al.
Hydrogenated amorphous silicon (a-Si:H) has been effectively utilized as photoactive and doped layers for quite a while in thin-film solar applications but its energy conversion efficiency is limited due to thinner absorbing layer and light degradation issue. To overcome such confinements, it is exp...
Mohammad Ismail Hossain, Wayesh Qarony, M. Khalid Hossain, Mithun Debnath et al.
In thin-film solar cells, the photocurrent conversion productivity can be distinctly boosted-up utilizing a proper back reflector. Herein, the impact of different smooth and textured back reflectors was explored and effectuated to study the optical phenomena with interface engineering strategies and...
M. Jalal Uddin, M. Khalid Hossain, Mohammad I. Hossain, Wayesh Qarony et al.
This work proposes a modeling of self-assembled monolayers (SAMs) to assess the quality of SAM layers in terms of their leaky behavior. In the modeling, electrochemical impedance spectroscopy (EIS) and a conceptual and simplified resistance-resistance-capacitance (RRC) electrical model from an elect...
Mohammad Kamal Hossain, Pengfei Guo, Wayesh Qarony, Yuen Hong Tsang et al.
All-inorganic halide perovskites (IHP), CsPbX3 (X = Cl, Br, I) exhibiting efficient optical emissions within the spectral range of 410 to 730 nm are potential candidates for many optoelectronic devices. Anion alloying of these IHPs is expected to achieve tunable emission wavelength covering the enti...
Wayesh Qarony, Yesmin Ara Jui, Gloria Mithi Das, Tashfiq Mohsin et al.
The optics of organic-inorganic halide perovskites materials in thin-film smooth surface p-i-n solar cell has been studied. The study was conducted for CH3NH3PbI3 perovskite material, used as a photoactive layer and sandwiched between ultrathin electron transport layer of TiO2 and hole transport lay...
Shantanu Nath, Sayera Aznabi, Nabila T. Islam, Annan Faridi et al.
The manuscript represents wireless sensor networks using numerous topologies of ZigBee. Along with coordinator load, the uses of coordination with such networks were inspected. The investigation has been accomplished via the use of various plots in the OPNET Modeler simulator. The results of the sim...
Mohammad Kamal Hossain, Roberto dos Reis, Wayesh Qarony, Yuen Hong Tsang et al.
Non-catalytic chemical vapor deposition growth of CsPbX<sub>3</sub> (X = Br, Cl) nanowires on both amorphous and crystalline substrates through nucleation and physiological transformations: ‘nanoparticles → capsules → dumbbells → coalescence of dumbbells → NWs’.
M. Jalal Uddin, M. Khalid Hossain, Wayesh Qarony, Mohammad Ismail Hossain et al.
In this work, the replication-based microcontact printing method has been presented to study the deformation effect of different printing times and printing pressures on the microcontact printed structures. Cost-effective microcontact printing channels of self-assembled monolayers of alkanethiol hav...
Mohammad Kamal Hossain, Wayesh Qarony, Ying Wang, Cheuk Kai Gary Kwok et al.
Because of their well-defined light–matter interaction volume, high-quality single-crystalline nature, and precise bandgap tunability, all-inorganic cesium lead halide (CsPbX 3 (X = Cl, Br, I)) perovskite (IHP) microplates are of fundamental and technological interest today.
Mohammad Ismail Hossain, Safayet Ahmed, Md. Shahiduzzaman, Wayesh Qarony et al.
In this study, a high-quality TiO <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sub> compact layer (CL) is prepared by Spray Pyrolysis Deposition (SPD), which is employed as a potential ETL for the realization of PSCs. To optimize the ETL, the thic...
Mohammad Ismail Hossain, Jahid Anowar, Safayet Ahmed, Ahmed Mortuza Saleque et al.
The tunable bandgap properties of perovskite materials allow attaining highly efficient tandem solar cells. An optimum bandgap for tandem solar cells can be reached by tuning the composition of halide elements in the perovskite material systems. However, realizing efficient tandem solar cells is com...