SrSnO3 Perovskite post-deposition on Ag-doped TiO2 rutile nanoflower for optoelectronic application

Ishak, Nurul Najihah and Nayan, Nafarizal and Megat Hasnan, Megat Muhammad Ikhsan and Abd Hamed, Noor Kamalia and Md Yunos, Yusri and Mohamed Ali, Mohamed Sultan (2023) SrSnO3 Perovskite post-deposition on Ag-doped TiO2 rutile nanoflower for optoelectronic application. Materials Chemistry and Physics, 301. pp. 1-11.

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Optoelectronic nanomaterials could be improved through bandgap engineering and surface area enhancement, which involves depositing nanoparticles on their photoactive layer surfaces. The present study investigated silver-doped rutile nanoflower TiO2 with an additional surface layer of perovskite SrSnO3 nanoparticles (rT-NF) using a combination of hydrothermal pre-processing followed by radio frequency (RF) magnetron sputtering. The new structure exhibited expanded visible spectrum light absorption. Increasing SrSnO3 deposition time lowered the energy bandgap from 3.0 eV to 2.89 eV. Furthermore, the electrical impedance approach and current-voltage measurement revealed the material’s electrical properties, subsequently supported by structural and surface characterization via XRD, FESEM, AFM, and Raman Spectroscopy. The post-deposition of SrSnO3 perovskite on Ag-doped rT-NF raised rutile crystallinity, enhanced its photo response, and lowered its bandgap and bulk resistivity. The outcomes of this work provided a new route to enhancing standard TiO2 nanoflower photoelectric response via perovskite post-deposition on nanoflower surfaces

Item Type: Article
Uncontrolled Keywords: TiO2 nanoflower Perosvskite material RF Magnetron sputtering Optical properties Optoelectronic
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions: Faculty of Electrical and Electronic Engineering > Department of Electrical Engineering
Depositing User: Mr. Mohamad Zulkhibri Rahmad
Date Deposited: 17 Oct 2023 06:55
Last Modified: 17 Oct 2023 06:55

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