Browsing by Author "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 ... -
Enhancement of optical features and sensitivity of MEH-PPV/VOPcPhO photodetector using CdSe quantum dots
Malik, Haseeb Ashraf; Aziz, Fakhr; Asif, Muhammad; Mansoor, Ehsan Raza; Najeeb, Ani; Ahmad, Zubair; Swelm, Wageh; Zafar, Qayyum; Touati, Farid; Kamboh, Afzal Hussain; Supangat, Azzuliani; Sulaiman, Khaulah... more authors ... less authors ( Elsevier , 2016 , Article)In the present work, spectroscopic features and sensitivity of poly[2-methoxy-5-(2-ethylhexyloxy)-p-phenylene vinylene] (MEH-PPV) and vanadyl 2, 9, 16, 23-tetraphenoxy-29H, 31H-phthalocyanine (VOPcPhO) based photodetector ... -
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 ... -
Review on two-terminal and four-terminal crystalline-silicon/perovskite tandem solar cells; progress, challenges, and future perspectives
Ehsan, Raza; Ahmad, Zubair ( 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 ...