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Dr. Munirah D. Albaqami

Associate Professor

Associate Professor

كلية العلوم
Building 5, 3rd floor, Office 183
publication
Journal Article
2021

Experimental and theoretical study of highly porous lignocellulose assisted metal oxide photoelectrodes for dye-sensitized solar cells

Here, we have manufactured extremely porous photoelectrodes comprised of ZnO/TiO2 by adding lignocellulose (LC) fibers extracted from the self-growing plant (Lily) on fluorine-doped tin oxide (FTO) substrate using doctor blade technique for dye-sensitized solar cells (DSSCs) uses and first-principle calculations were performed for electronic band structures and density of state (DOS). Density functional theory (DFT) results revealed a high conductivity and narrow electronic bandgap after doping with LC. Experimental results showed the effect of the addition of LC in ZnO (ZnO + LC) and TiO2 (TiO2 + LC) on the structure, morphology, and power conversion efficiency (PCE) was studied in detail using powder X-ray diffraction, scanning electron microscope, UV–vis- ible spectroscopy, and solar simulant. The addition of LC in ZnO/TiO2 increases the porosity and surface area for higher dye loading and light-harvesting while decreasing the backward scattering of electrons. These developments result in a 38% increase in PCE of (ZnO + LC) as related to the ZnO based DSSC and a 104% increase in the case of (TiO2 + LC) based DSSC. In this work, we express that the development of highly porous metal oxide nano-composites by mixing LC fibers which may solve the electrolyte leakage issue and enhance the porosity of the photoelectrodes and thus enhance the PCE of DSSCs.

Volume Number
14
Issue Number
2
more of publication
publications

The continuous development of microelectronics requires mechanically enhanced insulating materials with a lower dielectric (low-k) constant. To accomplish this, in this paper, low-k polymer…

by Md A. Wahab, He Chaobin, Tariq Altalhi, Munirah D. Albaqami, Zeid A. Alothman, Rezwanul Haque
2021
publications

Here, we have manufactured extremely porous photoelectrodes comprised of ZnO/TiO2 by adding lignocellulose (LC) fibers extracted from the self-growing plant (Lily) on fluorine-doped tin oxide (FTO…

by Muhammad Saleem, Muhammad Irfan, Sobia Tabassum, Munirah D Albaqami, Muhammad Sufyan Javed, Shahid Hussain, Muhammad Pervaiz, Ikram Ahmad, Awais Ahmad, Muhammad Zuber
2021
publications

Present research work focuses on the synthesis of novel azo-dye Cu(II), Ni(II) and Co(II) chelates of Schiff base based ligand having antimicrobial activities. Azo-dye Cu(II) and Zn(II) complexes…