Structural, morphological, optical and compositional characterization of spray deposited Ga doped ZnO thin film for Dye-Sensitized Solar Cell application

Rani, Adila; Ernest, Suhashini

doi:10.1016/j.spmi.2014.07.048

Cited by 31 publications

(7 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Ga cations as dopants supply electrons and zinc cations result in less lattice distortion [81]. Similar changes in growth orientation with Ga-doping have been observed by other researchers [82,83]. In Ga-doped ZnO, the surface defect, especially the oxygen vacancy, is the main reason for the accurate measurement of carbon monoxide, which is also analyzed by the XPS technique.…”

Section: Spray Pyrolysis Techniquesupporting

confidence: 62%

Recent advances in the synthesis of ZnO-based electrochemical sensors

Akhoondi,

Ahmad,

Nawaz Sharif

et al. 2023

Synth. Sinter.

View full text Add to dashboard Cite

Until now, various composites based on zinc oxide (ZnO) have been investigated in electrochemical sensors. The physical and electrochemical properties of ZnO and its structure can improve the selectivity, sensitivity, and adaptability of nanocomposites. Therefore, the focus on the fabrication of cheap ZnO-based electrodes with affordable and easy transportability has increased. In addition, the electrochemical behavior is affected by the structure and morphology of the ZnO-based composite in detecting pollutants such as volatile organic compounds, heavy metals, and toxins. Furthermore, ZnO-based nanostructures are efficient in the fabrication of electrochemical sensors in the food industry, pharmaceutical analysis, and medical diagnostics. In this review, various techniques in the synthesis of ZnO-based electrodes and their effect on the particle size, shape, and morphology of compounds have been collected. Since the performance of chemical sensors has a direct relationship with the structure of the composite used in its electrode, it is necessary to discuss the new production methods, new concepts, strategies, and challenges. Additionally, new gains highlight recent developments and sensing of various analytes in the monitoring systems. These sensors have demonstrated a strong growth acceleration which could lead to the development of recent technologies. At last, an optimistic outlook is provided on the future of ZnO-based sensors and their challenges.

show abstract

Section: Spray Pyrolysis Techniquesupporting

confidence: 62%

Recent advances in the synthesis of ZnO-based electrochemical sensors

Akhoondi,

Ahmad,

Nawaz Sharif

et al. 2023

Synth. Sinter.

View full text Add to dashboard Cite

show abstract

“…where α is the optical absorption coefficient, A is the proportionality constant, E g is optical band-gap, and hv denotes photon energy [81]. The calculated results have the largest optical band-gap when the sputtering power is 140 W, which is because the optical band-gap of the film is approximately proportional to N 2/3 (N is the carrier concentration).…”

Section: Effect Of Sputtering Power On Properties Of Zno:ga Filmsmentioning

confidence: 88%

Magnetron Sputtering for ZnO:Ga Scintillation Film Production and Its Application Research Status in Nuclear Detection

2019

View full text Add to dashboard Cite

As a wide band-gap and direct transition semiconductor material, ZnO has good scintillation performance and strong radiation resistance, but it also has a serious self-absorption phenomenon that affects its light output. After being doped with Ga, it can be used for the scintillator of ultra-fast scintillating detectors to detect X-ray, gamma, neutron, and charged particles with extremely fast response and high light output. Firstly, the basic properties, defects, and scintillation mechanism of ZnO crystals are introduced. Thereafter, magnetron sputtering, one of the most attractive production methods for producing ZnO:Ga film, is introduced including the principle of magnetron sputtering and its technical parameters’ influence on the performance of ZnO:Ga. Finally, ZnO:Ga film’s application research status is presented as a scintillation material in the field of radiation detection, and it is concluded that some problems need to be urgently solved for its wider application.

show abstract

“…In the Zn 2p XPS spectra, Figure2b, the characteristic doublet peaks attributed to Zn 2p3/2 and Zn 2p1/2 can be observed in all catalyst samples. The gap between the prominent doublet peaks in Zn 2p XPS is about 23 eV[39]. For the SP catalyst, the peaks at 1022.1 eV and 1045.3 eV can be ascribed for Zn 2p3/2 and Zn 2p1/2, respectively.…”

mentioning

confidence: 93%

Hydrogenation of Carbon Dioxide to Dimethyl Ether on CuO–ZnO/ZSM-5 Catalysts: Comparison of Powder and Electrospun Structures

Nejadsalim,

Godini,

Ramesh Kumar

et al. 2023

Materials

View full text Add to dashboard Cite

The promising direct dimethyl ether (DME) production through CO2 hydrogenation was systematically analyzed in this research by synthesizing, characterizing, and testing several catalytic structures. In doing so, various combinations of precipitation and impregnation of copper- and zinc-oxides (CuO–ZnO) over a ZSM-5 zeolite structure were applied to synthesize the hybrid catalysts capable of hydrogenating carbon dioxide to methanol and dehydrating it to DME. The resulting catalytic structures, including the co-precipitated, sequentially precipitated, and sequentially impregnated CuO–ZnO/ZSM-5 catalysts, were prepared in the form of particle and electrospun fibers with distinguished chemical and structural features. They were then characterized using XRD, BET, XPS, ICP, TGA, SEM, and FIB-SEM/EDS analyses. Their catalytic performances were also tested and analyzed in light of their observed characteristics. It was observed that it is crucial to establish relatively small-size and well-distributed zeolite crystals across a hybrid catalytic structure to secure a distinguished DME selectivity and yield. This approach, along with other observed behaviors and the involved phenomena like catalyst particles and fibers, clusters of catalyst particles, or the whole catalytic bed, were analyzed and explained. In particular, the desired characteristics of a CuO–ZnO/ZSM-5 hybrid catalyst, synthesized in a single-pot processing of the precursors of all involved catalytically active elements, were found to be promising in guiding the future efforts in tailoring an efficient catalyst for this system.

show abstract

Structural, morphological, optical and compositional characterization of spray deposited Ga doped ZnO thin film for Dye-Sensitized Solar Cell application

Cited by 31 publications

References 16 publications

Recent advances in the synthesis of ZnO-based electrochemical sensors

Recent advances in the synthesis of ZnO-based electrochemical sensors

Magnetron Sputtering for ZnO:Ga Scintillation Film Production and Its Application Research Status in Nuclear Detection

Hydrogenation of Carbon Dioxide to Dimethyl Ether on CuO–ZnO/ZSM-5 Catalysts: Comparison of Powder and Electrospun Structures

Contact Info

Product

Resources

About