Salih, Ethar Yahya and Sabri, Mohd Faizul Mohd and Eisa, Mohamed Hassan and Sulaiman, Khaulah and Ramizy, Asmiet and Hussein, Mohd Zobir and Said, Suhana Mohd (2021) Mesoporous ZnO/ZnAl2O4 mixed metal oxide-based Zn/Al layered double hydroxide as an effective anode material for visible light photodetector. Materials Science in Semiconductor Processing, 121. ISSN 1369-8001, DOI https://doi.org/10.1016/j.mssp.2020.105370.
Full text not available from this repository.Abstract
In this article, mesoporous ZnO/ZnAl2O4 mixed metal oxide (MMO) based Zn/Al layered double hydroxide (LDH) was prepared via modified co-precipitation and thermal reduction methods for visible light photodetector. A series of photodetectors were assembled using the corresponding mesoporous MMO attended with Ruthenizer dye as visible light sensitizer (535-bisTBA). Particularly, the amount of dye loaded onto the mesoporous layers was estimated through UV-Vis analysis-based regression equation, which provides a solid correlation with the fabricated device's photo-responsive performance. Simultaneously, a considerable photo-responsivity and spe-cific photo-detectivity of the fabricated device was perceived. This could be attributed to the significant BET surface area (53 m(2)/g) as well as high loaded amount of dye on the prepared mesoporous layer (0.33 mMol/ cm(-2)). In detail, the photo-responsivity and specific photo-detectivity for ZA-400 photodetector were found to be within the range of 11 mA/mW and 1011 jones, respectively; in which a superior photo-responsive behavior was acquired as compared to similar geometries. The optimum device (ZA-400) exhibited an approximate response time of 900 m s. In addition to the consistency and robustness of the proposed photodetector, this work offers an alternative approach for eco-friendly optoelectronic design.
| Item Type: | Article |
|---|---|
| Funders: | Science and Technology Development Fund (STDF) Ministry of Higher Education & Scientific Research (MHESR)[PG030-2015B], Universiti Malaya[PG030-2015B], Nippon Sheet Glass Grant[IF009-2020] |
| Uncontrolled Keywords: | Mesoporous ZnO/ZnAl2O4;Visible light photodetector;Photo-responsivity;Photo-detectivity |
| Subjects: | Q Science > QC Physics T Technology > TA Engineering (General). Civil engineering (General) |
| Divisions: | Faculty of Science |
| Depositing User: | Ms Zaharah Ramly |
| Date Deposited: | 22 Aug 2022 01:03 |
| Last Modified: | 22 Aug 2022 01:03 |
| URI: | http://eprints.um.edu.my/id/eprint/28761 |
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