Investigation of Co-doped Cu2O thin films on the structural, optical and morphology by SPT

Abdulmunem, Oday Mazin; Jabbar, Ali Mohammed; Muhammad, Shawki Khalaf; Dawood, Mohammed O.; Chiad, Sami Salman; Habubi, Nadir F.

doi:10.1088/1742-6596/1660/1/012055

Cited by 13 publications

(2 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The presence of NH 3 molecules leads to an oxidation process on the surface. As specific O 2+ ions release bonded electrons to the surface, these electrons drift back to the conduction band [48], resulting in increased resistance and an enhanced potential barrier under these conditions [49]. Furthermore, it was observed that the TiO 2 film at 4% Ag doping exhibited the highest resistance.…”

Section: Resultsmentioning

confidence: 99%

Physical and sensing characterization of nanostructured Ag doped TiO2 thin films

Sada,

Jasim,

Saleh

et al. 2024

JOR

View full text Add to dashboard Cite

On glass substrates, silver (Ag) doped Titanium dioxide (TiO2) films at varied levels of concentrations (0, 2, and 4) % wt were synthesized by chemical spray pyrolysis (CSP). As per the X-ray diffraction pattern, the only phases present in the sample were anatase and rutile TiO2. Using AFM, it was discovered that the TiO2 thin films were smooth and compact; however, the surface roughness increases as the dopant amount decreases. SEM images display TiO2 films. Surface transformation is evident with uniform spherical nanograins after Ag doping. The optical characteristics of wavelength range (300-900) nm have been investigated using absorbance and transmittance spectra. The results revealed that the films have a 65-75 % transmittance in VIS-NIR spectra for all films. The allowable direct electronic transitions have (3.15-3.25) eV energy gaps. At 250 ppm, the NH3 gas sensor exhibited increased resistance, indicating heightened sensitivity. Sensitivity decreases with concentration increases to 0 %, 2 %, and 4 % of Ag for NH3 gas. Reduction observed: 18.4% to 4.6% (50 ppm), 20.7% to 6.8% (150 ppm), and 25.9% to 8.2% (250 ppm).

show abstract

Section: Resultsmentioning

confidence: 99%

Physical and sensing characterization of nanostructured Ag doped TiO2 thin films

Sada,

Jasim,

Saleh

et al. 2024

JOR

View full text Add to dashboard Cite

show abstract

“…Similarly, at −1.0 V, a significant peak is evident at 42.7 planes, providing insights into the preferential growth directions of the crystals. The crystallite size of the prepared Cu 2 O thin films is determined using the Scherrer formula, which takes into account the XRD peaks' full width at half maximum (FWHM) [50].…”

Section: X-ray Diffraction Analysismentioning

confidence: 99%

Preparation of nanostructured cuprous oxide (Cu₂O) absorber layer for photovoltaic application

Awal,

Tanisa,

Rahman

et al. 2024

Micro & Nano Letters

View full text Add to dashboard Cite

In this investigation, a nanostructured Cu2O thin film absorber layer is electrodeposited, exploring the impact of varying negative applied voltages and deposition time. Notably, the Cu2O thin film demonstrated optimal absorbance at −0.95 V, contrasting sharply with a minimum at −0.97 V. The authors' findings underscore that the peak absorbance was achieved at −0.95 V, coinciding with the lowest transmittance observed after 80 min of deposition, aligning with a maximal absorption coefficient of 21 × 103 cm−1. At a deposition time of 5 min, the Cu2O thin film exhibited a noteworthy maximum Urbach energy of 2.00 eV and a minimum steepness parameter of 0.013. In contrast, the lowest Urbach energy was recorded at 0.34 eV, with the highest steepness parameter occurring at an applied voltage of 0.93 V. Furthermore, this study revealed a gradual increase in the refractive index with higher applied voltages, reaching its pinnacle at −1.5 V. These results collectively emphasize the nuanced interplay between applied voltage, deposition time and the optical properties of the nanostructured Cu2O thin film. The observed trends hold significant implications for optimizing the performance of thin film absorber layers, particularly in the context of enhancing absorbance and tailoring optical characteristics for specific applications.

show abstract

High-performance energy storage of highly saturated ferromagnetic cobalt-doped cuprous oxide thin films

Ganesan

Amaliroselin

Doss³

et al. 2021

J Mater Sci: Mater Electron

View full text Add to dashboard Cite

Investigation of Co-doped Cu2O thin films on the structural, optical and morphology by SPT

Cited by 13 publications

References 17 publications

Physical and sensing characterization of nanostructured Ag doped TiO2 thin films

Physical and sensing characterization of nanostructured Ag doped TiO2 thin films

Preparation of nanostructured cuprous oxide (Cu₂O) absorber layer for photovoltaic application

High-performance energy storage of highly saturated ferromagnetic cobalt-doped cuprous oxide thin films

Contact Info

Product

Resources

About

Investigation of Co-doped Cu2O thin films on the structural, optical and morphology by SPT

Cited by 13 publications

References 17 publications

Physical and sensing characterization of nanostructured Ag doped TiO2 thin films

Physical and sensing characterization of nanostructured Ag doped TiO2 thin films

Preparation of nanostructured cuprous oxide (Cu2O) absorber layer for photovoltaic application

High-performance energy storage of highly saturated ferromagnetic cobalt-doped cuprous oxide thin films

Contact Info

Product

Resources

About

Preparation of nanostructured cuprous oxide (Cu₂O) absorber layer for photovoltaic application