Electrical properties of cuprous oxide thin films fabricated by ultrasonic spray pyrolysis

Lan, Wen−How; Tsai, Chun-Wei; Lee, Shao-Yi; Chao, Wei-Min; Shih, Ming‐Chang; Chou, Yi-Chun; Wu, Yi-Da; Hsu, Yu-Ting

doi:10.1109/oecc.2012.6276783

Cited by 6 publications

(2 citation statements)

References 7 publications

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“…The resistivity of the film is decreased for the increase of solution concentration, which attributes the increase in the carrier concentration. The low resistivity 2.19 × 10 2 Ω.cm and high carrier concentration 16.76 × 10 15 cm −3 obtained for the solution concentration of 0.1 M are well matched with the earlier work on cuprous oxide prepared by ultrasonic spray pyrolysis . This reduced electrical resistivity is considered to be caused by desorption of oxygen from the film surface .…”

Section: Resultsmentioning

confidence: 99%

Investigation of molar concentration effect on structural, optical, electrical, and photovoltaic properties of spray‐coated Cu₂O thin films

Prabu¹,

Valanarasu²,

Ganesh

et al. 2018

Surface & Interface Analysis

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High quality copper oxide thin films were prepared by nebulizer spray pyrolysis technique using different concentrations of copper precursor solution. Concentration-dependent structural, morphological, optical, and electrical properties of the prepared films are discussed. X-ray diffraction studies done for the samples confirmed that the deposited films are in Cu 2 O phase with polycrystalline cubic structure. Atomic force microscopy analysis revealed that all the films are composed of nano sheet shaped grains covering the substrate surface. Optical studies done on the samples showed band gap values 2.42, 2.31, and 2.02 eV for the solution concentration 0.01, 0.05, and 0.1 M, respectively. Photoluminescence spectral analysis showed the emission band at 620 nm confirming the formation of cuprous oxide. Electrical analysis of the films showed p-type conductivity with a low resistivity 2.19 × 10 2 Ω.cm and high carrier concentration 16.76 × 10 15 cm −3 for the molar concentration 0.1 M. In this work, Cu 2 O/ZnO heterojunctions were also prepared, and solar cell properties were studied; they were found to show increased open circuit voltage and short circuit current for higher copper concentration.

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Section: Resultsmentioning

confidence: 99%

Investigation of molar concentration effect on structural, optical, electrical, and photovoltaic properties of spray‐coated Cu₂O thin films

Prabu¹,

Valanarasu²,

Ganesh

et al. 2018

Surface & Interface Analysis

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“…While the electrical properties of AZO thin films obtained by spray pyrolysis [54] are on the order of that which are obtained through classical thin film processes such as PLD, as described in Table 1, the properties of spray pyrolysis copper oxide thin films differ a lot from that of the ones obtained by thermal oxidation. Depending on the spray system, deposition conditions and doping, Cu 2 O thin film have shown to exhibit Hall mobilities between 0.45 and 22 cm 2 V À1 s À1 with carrier concentrations ranging from 2.68 Â 10 15 up to 2.1 Â 10 17 cm À3 [19,[55][56][57].…”

Section: Typical Parameters Of Cu 2 O By Spray Pyrolysismentioning

confidence: 99%

Numerical investigations of the impact of buffer germanium composition and low cost fabrication of Cu₂O on AZO/ZnGeO/Cu₂O solar cell performances

et al. 2021

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Numerical simulations of AZO/Zn1−xGexO/Cu2O solar cell are performed in order to model for the first time the impact of the germanium composition of the ZnGeO buffer layer on the photovoltaic conversion efficiency. The physical parameters of the model are chosen with special care to match literature experimental measurements or are interpolated using the values from binary metal oxides in the case of the new Zn1−xGexO compound. The solar cell model accuracy is then confirmed thanks to the comparison of its predictions with measurements from the literature that were done on experimental devices obtained by thermal oxidation. This validation of the AZO/Zn1−xGexO/Cu2O model then allows to study the impact of the use of the low cost, environmental friendly and industrially compatible spray pyrolysis process on the solar cell efficiency. To that aim, the Cu2O absorber layer parameters are adjusted to typical values obtained by the spray pyrolysis process by selecting state of the art experimental data. The analysis of the impact of the absorber layer thickness, the carrier mobility, the defect and doping concentration on the solar cell performances allows to draw guidelines for ZnGeO/Cu2O thin film photovoltaic device realization through spray pyrolysis.

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Cuprous oxide thin films obtained by spray-pyrolysis technique

Osorio-Rivera¹,

Torres‐Delgado²,

Márquez‐Marín³

et al. 2017

J Mater Sci: Mater Electron

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Electrical properties of cuprous oxide thin films fabricated by ultrasonic spray pyrolysis

Cited by 6 publications

References 7 publications

Investigation of molar concentration effect on structural, optical, electrical, and photovoltaic properties of spray‐coated Cu₂O thin films

Investigation of molar concentration effect on structural, optical, electrical, and photovoltaic properties of spray‐coated Cu₂O thin films

Numerical investigations of the impact of buffer germanium composition and low cost fabrication of Cu₂O on AZO/ZnGeO/Cu₂O solar cell performances

Cuprous oxide thin films obtained by spray-pyrolysis technique

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Electrical properties of cuprous oxide thin films fabricated by ultrasonic spray pyrolysis

Cited by 6 publications

References 7 publications

Investigation of molar concentration effect on structural, optical, electrical, and photovoltaic properties of spray‐coated Cu2O thin films

Investigation of molar concentration effect on structural, optical, electrical, and photovoltaic properties of spray‐coated Cu2O thin films

Numerical investigations of the impact of buffer germanium composition and low cost fabrication of Cu2O on AZO/ZnGeO/Cu2O solar cell performances

Cuprous oxide thin films obtained by spray-pyrolysis technique

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Investigation of molar concentration effect on structural, optical, electrical, and photovoltaic properties of spray‐coated Cu₂O thin films

Investigation of molar concentration effect on structural, optical, electrical, and photovoltaic properties of spray‐coated Cu₂O thin films

Numerical investigations of the impact of buffer germanium composition and low cost fabrication of Cu₂O on AZO/ZnGeO/Cu₂O solar cell performances