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      • Thumbnail

        Comparative Study on Gas-Sensing Properties of 2D (MoS2, WS2)/PANI Nanocomposites-Based Sensor 

        Parangusan, Hemalatha; Bhadra, Jolly; Al-Qudah, Razen Amer; Elhadrami, Elhassen Cheikh; Al-Thani, Noora Jabor ( MDPI , 2022 , Article)
        NH3 is a highly harmful gas; when inhaled at levels that are too high for comfort, it is very dangerous to human health. One of the challenging tasks in research is developing ammonia sensors that operate at room temperature. ...
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        Covid-19 inspired a stem-based virtual learning model for middle schools—a case study of Qatar 

        Abouhashem, Azza; Abdou, Rana Magdy; Bhadra, Jolly; Siby, Nitha; Ahmad, Zubair; Al-Thani, Noora Jabor... more authors ... less authors ( MDPI , 2021 , Article)
        An unprecedented turn in educational pedagogies due to the COVID-19 pandemic has significantly affected the students’ learning process worldwide. This article describes developing a STEM-based online course during the ...
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        Cultivating STEM Interest in High School Students through Computer-assisted COVID-19 Pandemic Awareness Course 

        Alkhair, Shahad; Ali, Ruba Anwar Ahmad; Elhawary, Enas Fathy Mohamed; Al-Ejji, Maryam Mohammed M A; Ahmad, Zubair; Al-Thani, Noora Jabor; Bhadra, Jolly Subhash... more authors ... less authors ( IIKII , 2022 , Article)
        Due to the COVID-19 pandemic, students were sidetracked by the shift in the educational process, primarily in the field of STEM (science, technology, engineering, mathematics) education. Teachers were also besieged to find ...
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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 ...
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        Detection of voltage pulse width effect on charge accumulation in PSCs using EFISHG measurement 

        Zubair, Ahmad; Taguchi, D.; Paek, Sanghyun; Mishra, Arti; Bhadra, Jolly; Iwamoto, M.; Manaka, T.; Nazeeruddin, Mohammad Khaja... more authors ... less authors ( 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 ...
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        Development of Semitransparent UV Photodetector Based on PTB7-Th:PCBM Composite Using the Cost-effective Fabrication Method 

        Riaz, Muhammad; Bashir, Muhammad Mehran; Karimov, Khasan S.; Nabi, Jameel Un; Mehmood Ahmad, Rana Tariq; Ahmad, Zubair; Mehmood, Atif... more authors ... less authors ( ESG , 2021 , Article)
        This article presents a semitransparent ultraviolet (UV) sandwich-surface type sensor based on PTB7-Th: PCBM composite. The ultraviolet (UV) transparency of 29% was achieved through a cost-effective drop-cast fabrication ...
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        A distinctive method of online interactive learning in stem education 

        Abouhashem, Azza; Abdou, Rana Magdy; Bhadra, Jolly; Santhosh, Malavika; Ahmad, Zubair; Al-Thani, Noora Jabor... more authors ... less authors ( MDPI , 2021 , Article)
        A breakthrough that has occurred in recent years is the emergence of the COVID-19 pandemic. It has affected various sectors of society, including the educational sector. It has prevented students from performing group-oriented ...
      • Effect of cold and hot compactions on corrosion behavior of p- and n-type bismuth telluride-based alloys developed through microwave sintering process 

        Lemine, Aicha S.,; Fayyaz, Osama; Shakoor, R.A.; Ahmad, Zubair; Bhadra, Jolly; Al-Thani, Noora J.... more authors ... less authors ( 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 

        Abdulrahim, Sumayya M.; Ahmad, Zubair; Mehmood, Muhammad Qasim; Paek, Sanghyun; Bhadra, J.; Al-Thani, Noora J.; Nazeeruddin, Mohammad Khaja; Belaidi, Abdelhak; Amani, Mahmood... more authors ... less authors ( 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. ...
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        Effect of sulfonated poly (ether ether ketone) on the sensitivity of polyvinylidene fluoride-based resistive humidity sensors 

        Mallick S.; Ahmad Z.; Eribi A.; Parangusan H.; Bhadra J.; Hassan M.K.; Al-Thani N.J.; Touati F.; Al-Muhtaseb S.... more authors ... less authors ( Elsevier Ltd , 2020 , Article)
        We have investigated the effect of sulfonated poly (ether ether ketone) (SPEEK) on the thermal stability, hydrophilicity, and sensitivity of polyvinylidene fluoride (PVDF) films based resistive humidity sensors. The blended ...
      • Effect of the temperature on the passivity of the modified martensitic stainless steels 

        Radwan, A. Bahgat; Moussa, A. M.; Al-Qahtani, Noora H.; Case, Raymundo; Castaneda, Homero; Abdullah, Aboubakr M.; El-Haddad, Muhsen A.M.; Bhadra, Jolly; Al-Thani, Noora; Ding, Yuan... more authors ... less authors ( Taylor and Francis Group , 2022 , Article)
        The limits and nature of the passive behavior exhibited by modified martensitic stainless steels (MMSS) is studied in brine solutions at different temperatures using electrochemical methods and the point defect model (PDM), ...
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        Electrochemical impedance spectroscopy analysis of hole transporting material free mesoporous and planar perovskite solar cells 

        Abdulrahim, S.M.; Abdulrahim, Sumayya M.; Ahmad, Zubair; Bahadra, Jolly; Al-Thani, Noora J. ( MDPI , 2020 , Article Review)
        The future photovoltaic technologies based on perovskite materials are aimed to build low tech, truly economical, easily fabricated, broadly deployable, and trustworthy solar cells. Hole transport material (HTM) free ...
      • Electrospun PVDF/ZnO Based Composite Fibers for Oil Absorption and Photocatalytic Degradation of Organic Dyes from Waste Water 

        Parangusan, Hemalatha; Bhadra, Jolly; Ahmad, Zubair; Al-Maadeed, Ali S.M.A.; Al-Mohannadi, Abdulaziz M.A.A.; Al-Thani, Noora... more authors ... less authors ( Springer , 2022 , Article)
        Clean drinking water has been a vital topic of research in modern world, this makes efficient water purification as the latest demand. The research and development in the field of filtration technology has revitalize ...
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        Exploring Teachers’ Perceptions of the Barriers to Teaching STEM in High Schools in Qatar 

        Sellami, Abdellatif; Ammar, Mohammad; Ahmad, Zubair ( MDPI , 2022 , Article)
        Understanding teachers’ attitudes and perceptions of STEM teaching is a key pathway to enhance effective STEM teaching. Inarguably, teachers are the cornerstone of educational quality and play a central role in students’ ...
      • Hierarchical BaTiO3/NiFe2O4 nanocomposite as an efficacious photoanode for photoelectrochemical water splitting 

        Parangusan, Hemalatha; Bhadra, Jolly; Ahmad, Zubair; Karuppasamy, K.; Mallick, Shoaib; Touati, Farid; Al-Thani, Noora... more authors ... less authors ( 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 ...
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        High school students' STEM interests and career aspirations in Qatar: An exploratory study 

        Abdellatif, Sellami; Santhosh, Malavika; Bhadra, Jolly; Ahmad, Zubair ( 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 ...
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        Humidity sensor based on poly(lactic acid)/PANI-ZnO composite electrospun fibers 

        Parangusan, Hemalatha; Bhadra, Jolly; Ahmad, Zubair; Mallick, Shoaib; Touati, Farid; Al-Thani, Noora... more authors ... less authors ( Royal Society of Chemistry , 2021 , Article)
        The electrospinning technique has been successfully used to prepared micro-fibers of the poly(lactic acid)/polyaniline–zinc oxide (PLA/PANI–ZnO) composite. The polyaniline–zinc oxide (PANI–ZnO) nanocomposites are synthesized ...
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        A lightweight neural network with multiscale feature enhancement for liver CT segmentation 

        Ansari, Mohammed Yusuf; Yang, Yin; Balakrishnan, Shidin; Abinahed, Julien; Al-Ansari, Abdulla; Warfa, Mohamed; Almokdad, Omran; Barah, Ali; Omer, Ahmed; Singh, Ajay Vikram; Meher, Pramod Kumar; Bhadra, Jolly; Halabi, Osama; Azampour, Mohammad Farid; Navab, Nassir; Wendler, Thomas; Dakua, Sarada Prasad... more authors ... less authors ( Nature Research , 2022 , Article)
        Segmentation of abdominal Computed Tomography (CT) scan is essential for analyzing, diagnosing, and treating visceral organ diseases (e.g., hepatocellular carcinoma). This paper proposes a novel neural network (Res-PAC-UNet) ...
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        Long-Term Stability Analysis of 3D and 2D/3D Hybrid Perovskite Solar Cells Using Electrochemical Impedance Spectroscopy 

        Abdulrahim, Sumayya M.; Ahmad, Zubair; Bhadra, Jolly; Al-Thani, Noora Jabor ( MDPI , 2020 , Article)
        Despite the remarkable progress in perovskite solar cells (PSCs), their instability and rapid degradation over time still restrict their commercialization. A 2D capping layer has been proved to overcome the stability issues; ...
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        Low-toxic, earth-abundant nanostructured materials for thermoelectric applications 

        Jaldurgam, Farheen F.; Ahmad, Zubair; Touati, Farid ( MDPI AG , 2021 , Article)
        This article presents recent research directions in the study of Earth-abundant, cost-effective, and low-toxic advanced nanostructured materials for thermoelectric generator (TEG) applications. This study’s critical aspect ...

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