Browsing by Author "Aziz, Fakhra"
Now showing items 1-12 of 12
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A comparative study on the performance of hybrid solar cells containing ZnSTe QDs in hole transporting layer and photoactive layer
Najeeb, Mansoor Ani; Abdullah, Shahino Mah; Aziz, Fakhra; Ahmad, Zubair; Shakoor, R. A.; Mohamed, A. M. A.; Khalil, Uzma; Swelm, Wageh; Al-Ghamdi, Ahmed A.; Sulaiman, Khaulah... more authors ... less authors ( Springer Netherlands , 2016 , Article)In this paper, ZnSTe quantum dots-based hybrid solar cells (HSC) with two different device architectures have been investigated. The improved performance of the poly(3-hexylthiophene) (P3HT) and [6,6]phenyl C71 butyric ... -
Colloidal distribution of the PCPDTBT and VOPcPhO in the organic amalgam thin films and their optical properties
Aziz, Fakhra; Ahmad, Zubair; Najeeb, Mansoor Ani; Malik, Haseeb Ashraf; Abdullah, Shahino Mah; Touati, Farid; Sulaiman, Khaulah... more authors ... less authors ( Springer Verlag , 2017 , Article)In this article, we investigated the optical properties and colloidal distribution of the PCPDTBT and VOPcPhO in the organic amalgam thin films prepared by spin-coating technique. A very even dispersion of donor and acceptor ... -
Compositional engineering of the pi-conjugated small molecular VOPcPhO : Alq3 complex to boost humidity sensing
Fatima, Noshin; Aziz, Fakhra; Ahmad, Zubair; Najeeb, M. A.; Azmeer, M. I.; Karimov, Kh. S.; Ahmed, M. M.; Basheer, S.; Shakoor, R. A.; Sulaiman, K.... more authors ... less authors ( Royal Society of Chemistry , 2017 , Article)This study exhibits a solution-processed organic semiconductor humidity sensor based on vanadyl 2,9,16,23-tetraphenoxy-29H,31H-phthalocyanine (VOPcPhO), tris-(8-hydroxy-quinoline)aluminum (Alq3), and their composites. ... -
Compositional engineering of VOPcPhO-TiO2 nano-composite to reduce the absolute threshold value of humidity sensors
Azmer, Mohamad Izzat; Aziz, Fakhra; Ahmad, Zubair; Raza, Ehsan; Najeeb, Mansoor Ani; Fatima, Noshin; Bawazeer, Tahani M.; Alsoufi, Mohammad S.; Shakoor, R.A.; Sulaiman, Khaulah... more authors ... less authors ( Elsevier B.V. , 2017 , Article)This research work demonstrates compositional engineering of an organic-inorganic hybrid nano-composites for modifying absolute threshold of humidity sensors. Vanadyl-2,9,16,23-tetraphenoxy-29H,31H-phthalocyanine (VOPcPhO), ... -
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 ... -
Employment of single-diode model to elucidate the variations in photovoltaic parameters under different electrical and thermal conditions
Muhammad, Fahmi F.; Yahya, Mohd Y.; Hameed, Shilan S.; Aziz, Fakhra; Sulaiman, Khaulah; Rasheed, Mariwan A.; Ahmad, Zubair... more authors ... less authors ( Public Library of Science , 2017 , Article)In this research work, numerical simulations are performed to correlate the photovoltaic parameters with various internal and external factors influencing the performance of solar cells. Single-diode modeling approach is ... -
Improvement in the photovoltaic properties of hybrid solar cells by incorporating a QD-composite in the hole transport layer
Najeeb, Mansoor Ani; Abdullah, Shahino Mah; Aziz, Fakhra; Azmer, Mohamad Izzat; Swelm, Wageh; Al-Ghamdi, Ahmed A.; Ahmad, Zubair; Supangat, Azzuliani; Sulaiman, Khaulah... more authors ... less authors ( Royal Society of Chemistry , 2016 , Article)A hybrid solar cell (HSC) based on a ZnSe and CdSe QDs-composite with improved conversion efficiency has been demonstrated. A novel approach of incorporating a QDs-composite (CdSe and ZnSe QDs simultaneously), in the ... -
Influence of thermal annealing on a capacitive humidity sensor based on newly synthesized macroporous PBObzT2
Raza, Ehsan; Asif, Muhammad; Aziz, Fakhra; Azmer, Mohamad Izzat; Malika, Haseeb Ashraf; The, Chin-Hoong; Najeeb, Mansoor Ani; Zafar, Qayyum; Ahmad, Zubair; Wahab, Fazal; Daik, Rusli; Sarih, Norazilawati Muhamad; Supangat, Azzuliani; Sulaiman, Khaulah... more authors ... less authors ( Elsevier B.V. , 2016 , Article)In this work, we report on the application of a newly synthesized macroporous polythiophene derivative, benzo[b]thiophene end-capped dioctyloxy-benzene(PBObzT2), in the fabrication of a capacitive humidity sensor. The ... -
MAPbI3 Microrods-Based Photo Resistor Switches: Fabrication and Electrical Characterization
Raza, Ehsan; Aziz, Fakhra; Mishra, Arti; Al-Thani, Noora Jabor; Ahmad, Zubair ( MDPI , 2021 , Article)The current work proposed the application of methylammonium lead iodide (MAPbI3 ) perovskite microrods toward photo resistor switches. A metal-semiconductor-metal (MSM) configu-ration with a structure of silver-MAPbI3 ... -
Metal halide-based photodetector using one-dimensional MAPbI3 micro rods
Raza, Ehsan; Ahmad, Zubair; Mishra, Arti; Aziz, Fakhra ( Springer , 2020 , Article)In the present work, we report the fabrication of a photodetector using methylammonium lead iodide perovskite (MAPbI3) micro rod. Photosensitivity of the Ag/MAPbI3/Ag photodetector has been studied under various light ... -
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 ...