Browsing Research of Qatar University Young Scientists Center by Publisher "Elsevier"
Now showing items 1-19 of 19
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Design and optimization of four-terminal mechanically stacked and optically coupled silicon/perovskite tandem solar cells with over 28% efficiency
( Elsevier , 2023 , Article)Silicon/perovskite tandem devices are believed to be a favorite contender for improving cell performance over the theoretical maximum value of single-junction photovoltaic (PV) cells. The present study evaluates the design ... -
Detection of voltage pulse width effect on charge accumulation in PSCs using EFISHG measurement
( Elsevier , 2020 , Article)We report the effect of applied pulse width on charge accumulation in triple cation perovskite solar cells (PSCs) during the Electric Field Induced Second Harmonic Generation (EFISHG) measurements. The PSCs were prepared ... -
Do research experience programs promote capacity building in Qatar: Investigating the trend and participation differences
( Elsevier , 2023 , Article)Research Experience programs (REPs) inspire students to pursue advanced degrees and shape their research career paths. Government and commercial organizations sponsor REPs to promote the capacity building of the country. ... -
Effect of cold and hot compactions on corrosion behavior of p- and n-type bismuth telluride-based alloys developed through microwave sintering process
( Elsevier , 2023 , Article)Bismuth Telluride (BiTe) based p-type and n-type alloys exhibit superior thermoelectric (TE) performance covering energy requirements for specialized and home utilization. The main challenge nowadays is the sustainability ... -
Effect of illumination and applied potential on the electrochemical impedance spectra in triple cation (FA/MA/Cs) 3D and 2D/3D perovskite solar cells
( Elsevier , 2021 , Article)Even though there has been numerous works performed based on electrochemical impedance spectroscopy (EIS) of perovskite solar cells (PSCs), however, many aspects of the obtained EI spectra are yet to be fully grasped. ... -
Hierarchical BaTiO3/NiFe2O4 nanocomposite as an efficacious photoanode for photoelectrochemical water splitting
( Elsevier , 2022 , Article)Photocatalysis of water for the production of oxygen and hydrogen is one of the most important development in the drive for clean energy, and it has received a lot of attention because it is a green and easy step to generate ... -
High school students' STEM interests and career aspirations in Qatar: An exploratory study
( Elsevier , 2023 , Article)This study sought to explore high school students' interest in science, technology, engineering, and mathematics (STEM) related disciplines and careers in the context of Qatar. Quantitative data was collected using a survey ... -
Ion-imprinted membranes for lithium recovery: A review
( Elsevier , 2024 , Article)This review critically examines the effectiveness of ion-imprinted membranes (IIMs) in selectively recovering lithium (Li) from challenging sources such as seawater and brine. These membranes feature customized binding ... -
Microstructure and mechanical properties of aluminum matrix composites with bimodal-sized hybrid NbC-B4C reinforcements
( Elsevier , 2022 , Article)Aluminum (Al) is an earth-abundant metal recognized with superior properties for vital applications in the aerospace and transportation industries. Structural components of Al exhibit poor performance due to its inherent ... -
A numerical approach to study the effect of bandgap and electron affinity in HTL-free perovskite solar cells and design of two-terminal silicon/perovskite tandem solar cell
( Elsevier , 2023 , Article)The hole-transport layer (HTL) free perovskite solar cells with carbon electrode (c-PSCs) have garnered significant attention owing to their simple design, cost-effectiveness, and good stability. However, the power conversion ... -
Numerical modeling and performance optimization of carbon-based hole transport layer free perovskite solar cells
( Elsevier , 2022 , Article)Owing to low production cost and ease of processing, hole-transport layer (HTL) free carbon electrode-based perovskite solar cells (c-PSCs) have emerged as a potential photovoltaic (PV) technology. Despite this, c-PCSs ... -
Numerical simulation analysis towards the effect of charge transport layers electrical properties on cesium based ternary cation perovskite solar cells performance
( Elsevier , 2021 , Article)In the present study, the device modeling of inverted architecture based on ITO/HTL/perovskite absorber/ETL/Ag was performed using a one-dimensional solar cell capacitance simulation (SCAPS-1D) program. Initially, device ... -
Numerical simulation to optimize the efficiency of HTM-free perovskite solar cells by ETM engineering
( Elsevier , 2023 , Article)Perovskite solar cells based on carbon electrodes (c-PSCs) without a hole transport material (HTM) have gained considerable interest owing to their cost-effective and simplified structure. However, their application is ... -
Optimum sintering method and temperature for cold compact Bismuth Telluride pellets for thermoelectric applications
( Elsevier , 2021 , Article)This work intends to investigate the optimum sintering method and temperature that can improve the efficiency of bismuth telluride cold compact pellets, for the thermoelectric applications. Different p-type and n-type ... -
Performance optimization of CH3NH3Pb(I1-xBrx)3 based perovskite solar cells by comparing different ETL materials through conduction band offset engineering
( Elsevier , 2020 , Article)Numerical simulations can provide the physical insights into the carrier transport mechanism in the solar cells, and the factors influencing their performance. In this paper, perovskite solar cell (PSC) based on the mixed ... -
Promising transparent and flexible thermoelectric modules based on p-type CuI thin films—A review
( Elsevier , 2022 , Article Review)The state-of-the-art thermoelectric technology owns a unique capability of direct, noise-free, and efficient conversion of waste heat into valuable electricity. The conventional thermoelectric generators are complex and ... -
Review on two-terminal and four-terminal crystalline-silicon/perovskite tandem solar cells; progress, challenges, and future perspectives
( Elsevier , 2022 , Article Review)Silicon (Si) solar cells are the dominant and well-developed solar technology holding more than 95% share of the photovoltaic market with efficiencies over 26%. Still, this value is far away from the Shockley–Queisser limit ... -
Thermal and mechanical stability of microwave sintered cold compact bismuth telluride thermoelectric material
( Elsevier , 2022 , Article)Both p-type and n-type bismuth telluride (Bi2Te3)-based thermoelectric materials demonstrate high thermoelectric efficiency in the low-temperature thermoelectric modules, but their constrained thermal and mechanical stability ... -
Undergraduate Research Experience Models: A systematic review of the literature from 2011 to 2021
( Elsevier , 2022 , Article)Undergraduate research experiences (UREs) impart a great deal of knowledge to undergraduate students, enhance the research capital of institutes, and authenticate the country's educational outcomes. To effectively assimilate ...