تصفح Research of Qatar University Young Scientists Center حسب المؤلف "Ehsan, Raza"
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Design and optimization of four-terminal mechanically stacked and optically coupled silicon/perovskite tandem solar cells with over 28% efficiency
Ehsan, Raza; Ahmad, Zubair; Aziz, Fakhra; Asif, Muhammad; Mehmood, Muhammad Qasim; Bhadra, Jolly; Al-Thani, Noora J.... more authors ... less authors ( 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 ... -
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
Ehsan, Raza; Bhadra, Jolly; Asif, Muhammad; Aziz, Fakhra; Al-Thani, Noora J.; Ahmad, Zubair... more authors ... less authors ( 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
Ehsan, Raza; Ahmad, Zubair; Asif, Muhammad; Aziz, Fakhra; Riaz, Kashif; Mehmood, Muhammad Qasim; Bhadra, Jolly; Al-Thani, Noora J.... more authors ... less authors ( 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
Ehsan, Raza; Ahmad, Zubair; Aziz, Fakhra; Asif, Muhammad; Ahmed, Ayyaz; Riaz, Kashif; Bhadra, Jolly; Al-Thani, Noora J.... more authors ... less authors ( 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 ...