Ili Salwani Mohamad
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Preferred name
Ili Salwani Mohamad
Official Name
Mohamad, Ili Salwani
Alternative Name
Salwani, Iii
Salwani Mohamad, Ili
Mohamad, I. S.B.
Mohamad, I. S.
Smohamad, I.
Ili, Salwani Mohamad
Bintimohamad, Ilisalwani
Main Affiliation
Scopus Author ID
55898400600
Researcher ID
ABS-3594-2022

Research Output

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  • Publication
    Charge recombination in zinc oxide-based dye-sensitized solar cell: a mini review
    ( 2021-12)
    Kaiswariah Magiswaran
    ;
    Mohd Natashah Norizan
    ;
    Ili Salwani Mohamad
    ;
    Norsuria Mahmed
    ;
    Siti Norhafizah Idris
    ;
    Sharizal Ahmad Sobri
    Dye-sensitized solar cell (DSSC) has been studied widely due to its efficiency and the simplicity of manufacturing technology. Much research has been performed to improve the photovoltaic output parameters in DSSC by modifying the photoanode layers. The efforts to investigate DSSC mainly focus on how to increase light absorption, speed electron transport in circuits, and reduce charge recombination. This review discusses the process of charge recombination and the paths of occurrence in a DSSC. Recombination occurs when the electrons in the conduction band fall into the valance band holes and is considered an unnecessary process in DSSC. Due to the recombination process, the photocurrent and the photovoltage are reduced, leading to lower power conversion efficiency. Hence, the ways to overcome the charge recombination process were also discussed.
  • Publication
    Electrical performance of Curcuma Longa extract dye using SnOâ‚‚-based photoanode dye-sensitized solar cell
    ( 2022-12)
    Siti Norhafizah Idris
    ;
    Ili Salwani Mohamad
    ;
    Norsuria Mahmed
    ;
    Mohd Natashah Norizan
    ;
    Kaiswariah Magiswaran
    ;
    Zuraida Abal Abas
    Due to their low output costs, straightforward manufacturing, and high effectiveness, dyesensitized solar cell (DSSC) has a large following interest in the solar energy industry. Furthermore, due to its outstanding properties, tin oxide (SnO₂) is an appealing semiconducting material suitable as a photoanode in DSSCs. In this research, the photoelectrodes of DSSC were fabricated using commercial SnO₂ nanoparticles and sensitized with inorganic and organic dyes, N719 and Curcuma longa (turmeric) extract dye. On top of that, a platinum (Pt) counter electrode, iodide electrolyte and fluorine-doped tin oxide (FTO) coated glass substrate were used to fabricate the DSSC. The crystallographic structure and surface morphology of the SnO₂ nanopowder were identified using X-ray diffraction (XRD) and scanning electron microscopy (SEM) characterizations respectively. In addition, UV-Visible and current density-voltage curves were used to analyze the optical properties of the photoanodes and the cell’s electrical performance. As a result, it was found that the DSSC fabricated with N719 dye exhibited higher efficiency in contrast with the turmeric extract dye with SnO₂ photoanodes.
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