Dependence of deposition bath temperature for p-electrodeposited-Cu2O onto n-TiO2/ZnO bilayer thin films

Arifin, Nurliyana Mohamad; Mohamad, Fariza; Li, Xin; Hussin, Rosniza; Ismail, Anis Zafirah Mohd; Ramli, Shazleen Ahmad; Ahmad, Nabihah; Nor, Nik Hisyamudin Muhd; Sahdan, Mohd Zainizan; Zain, Mohd Zamzuri Mohammad; Izaki, Masanobu

doi:10.1016/j.ijleo.2023.171205

Cited by 2 publications

(1 citation statement)

References 23 publications

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“…As both TiO 2 and ZnO have a similar band 2 of 14 gap of approximately 3.3 eV [10], a combination of these two metal oxides, known as the n-TiO 2 /ZnO bilayer thin film, promises superb optical properties. Aside from being commonly used as electron transport layers (ETLs) [11], n-TiO 2 /ZnO bilayer thin films can also lead to improved charge transport [12], reduced recombination losses [13], and better overall device efficiency [14].…”

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confidence: 99%

The Impact of Spinning Speed on n-TiO2/ZnO Bilayer Thin Film Fabricated through Sol–Gel Spin-Coating Method

Arifin,

Mhd Noor,

Mohamad

et al. 2024

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The spinning speed parameter plays a crucial role in determining the properties of an n-TiO2/ZnO bilayer thin film fabricated using the sol–gel spin-coating technique, especially for solar cell applications. In this study, various spinning speeds were employed on an n-TiO2/ZnO bilayer thin film, and characterizations were conducted, such as morphological, structural, and optical properties. The findings revealed that the optimal conditions for the thin film were achieved at a spinning speed of 3000 rpm. Under this condition, a homogenous and compact surface morphology was observed, with an even distribution of ZnO grains. The successful fabrication of an n-TiO2/ZnO bilayer thin film was confirmed by the presence of characteristic peaks for both TiO2 and ZnO. Obviously, three dominant ZnO orientation peaks, which included (100), (002), and (101) were identified. The prevalence of the (002)-ZnO orientation plane indicated a high-quality structure with excellent crystallinity. In terms of optical properties, the achievement of high transmittance up to 75% resembles the high transparency of the thin film. The optical energy of the n-TiO2/ZnO bilayer thin film is estimated at 3.10 eV. In summary, the spinning speed parameter played a pivotal role in enhancing various properties of the thin film, making it a significant factor in its development for diverse applications.

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Section: Introductionmentioning

confidence: 99%

The Impact of Spinning Speed on n-TiO2/ZnO Bilayer Thin Film Fabricated through Sol–Gel Spin-Coating Method

Arifin,

Mhd Noor,

Mohamad

et al. 2024

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Enhancing the Properties of Nanostructure TiO2 Thin Film via Calcination Temperature for Solar Cell Application

Arifin,

Mhd Noor,

Mohamad

et al. 2024

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In this study, titanium dioxide (TiO2) was deposited onto a fluorine-doped tin oxide (FTO) substrate using the sol–gel spin coating method. Through the implementation of calcination treatment on the thin film, enhancements were observed in terms of structural, optical, and morphological properties. Various calcination temperatures were explored, with TiO2 annealed at 600 °C identified as the optimal sample. Analysis of the X-ray diffraction spectroscopy (XRD) pattern revealed the prominent orientation plane of (101), indicating the presence of anatase TiO2 with a tetragonal pattern at this temperature. Despite fluctuations in the optical spectrum, the highest transmittance of 80% was observed in the visible region within the wavelength range of 400 nm. The estimated band-gap value of 3.45 eV reaffirmed the characteristic of TiO2. Surface analysis indicated the homogeneous growth of TiO2, uniformly covering the FTO substrate. Cross-sectional examination revealed a thickness of 263 nm with dense and compact nature of TiO2 thin film. No presence of defects or pores reflects a well-organized structure and high-quality formation. Significant electrical rectification properties were observed, indicating the successful formation of a p–n junction. In summary, calcination treatment was found to be crucial for enhancing the properties of the thin film, highlighting its significance in the development of solar cell applications.

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Dependence of deposition bath temperature for p-electrodeposited-Cu2O onto n-TiO2/ZnO bilayer thin films

Cited by 2 publications

References 23 publications

The Impact of Spinning Speed on n-TiO2/ZnO Bilayer Thin Film Fabricated through Sol–Gel Spin-Coating Method

The Impact of Spinning Speed on n-TiO2/ZnO Bilayer Thin Film Fabricated through Sol–Gel Spin-Coating Method

Enhancing the Properties of Nanostructure TiO2 Thin Film via Calcination Temperature for Solar Cell Application

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