Mohd Zamzuri Mohammad Zain
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Preferred name
Mohd Zamzuri Mohammad Zain
Official Name
Mohd Zamzuri , Mohammad Zain
Alternative Name
Mohammad Zain, Mohd Zamzuri
Mohd Zain, Mohd Zamzuri
Main Affiliation
Scopus Author ID
57193568678
Researcher ID
C-9161-2011

Research Output
Now showing 1 - 2 of 2
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Effect of hydrothermal reaction time and etching on nanorod TiOâ‚‚ thin film

2025-03 , Muhammad Zuhairi Zulkifli , Fariza Mohamad , Shazleen Ahmad Ramli , Nurliyana Mohamad Arifin , Mohd Khairul Ahmad , Nik Hisyamudin Muhd Nor , Mohd Zamzuri Mohammad Zain , Masanobu Izaki

Titanium dioxide (TiOâ‚‚) has the most potential function in numerous research domains because of its various advantages. Among the variety of ways, TiOâ‚‚ nanorods (TNRs) are one of interest nanoparticle structures due to their superior delocalisation of the electron holes pair and lower charge recombination. However, TNRs inhibit solar spectrum absorption and have a high resistivity. In this study, etching treatment is introduced to increase the specific surface area and reduce resistivity. The effect of reaction time was investigated on TNRs thin film by using the hydrothermal method. From the findings, the 8-hour reaction time of TNRs thin film revealed the most striking characteristics. The preferred (101)-orientation of TNRs was observed and the diameter of rods increased along with reaction time. As the reaction time rises, the bandgap energy of TNRs approaches the value of 3.0 eV and presents a compact surface. After etching treatment, the peak intensity of (101)-orientation of TNRs increases indicating high crystallinity. The morphology of nanorods changed into smaller rods, apparently a nanowire with deeper depth. The surface roughness and band gap increased due to the surface area affected by etching. The electrical properties of etched-TNRs thin film after showed a reduction of resistivity aligning to thickness decrement. Thus, hydrothermal etching treatment showed effectiveness in enhancing TNRs properties in terms of crystallinity, surface morphology and reducing resistivity.

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Dependence of deposition bath temperature for p-electrodeposited-Cuâ‚‚O onto n-TiOâ‚‚/ZnO bilayer thin films

2023 , Nurliyana Mohamad Arifin , Fariza Mohamad , Loh Zhi Xin , Rosniza Hussin , Anis Zafirah Mohd Ismail , Shazleen Ahmad Ramli , Norazlina Ahmad , Nik Hisyamudin Muhd Nor , Mohd Zainizan Sahdan , Mohd Zamzuri Mohammad Zain , Masanobu Izaki

The synthesis of semiconductor materials is crucial to produce the best properties of heterojunction thin films solar cell. Titanium dioxide (TiO2) is coupled with zinc oxide (ZnO) to promote high transmittance due to low utilization of the solar spectrum. In this project, p-Cu2O as absorbing layer was deposited onto n-TiO2/ZnO bilayer thin film which acts as window layer in order to complete the device. Several bath temperatures of 30, 40, 50 and 60 °C were manipulated during Linear Sweep Voltammetry (LSV) measurement and electrodeposition process for p-Cu2O thin film. The LSV measurement was employed to determine the potential value and electrochemical properties of p-Cu2O thin film. Based on findings, the suitable deposition potential chosen is − 0.4 V vs Ag/AgCl. The p-Cu2O thin film deposited at bath temperature of 40 °C exhibited the highest diffraction peak intensity in the (111)-preferred plane orientation showing high crystallinity. The surface morphology of homogeneous and well-defined triangular shape with thickness of 4.93μm was observed. The estimated bandgap energy of 1.92 eV acquired indicated to p-Cu2O thin film. The n-TiO2/ZnO bilayer/p-Cu2O heterojunction thin film was successfully fabricated and showed significant electrical rectification properties. Here in, bath temperature influenced to the enhancement of heterointerface growth development in several properties.

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