Investigation of variation of energy of laser beam on structural, electrical and optical properties of pulsed laser deposited CuO thin films

Dahiya, Vinita; Kaur, Gurpreet; Mitra, Anirban; Kumar, Ashavani

doi:10.1063/1.4872810

Cited by 2 publications

(2 citation statements)

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“…Functional thin films such as oxides, sulphides, nitrides and oxynitride are synthesized using different deposition techniques among which are thermal evaporation [14][15][16], chemical bath methods [17][18], sputtering [19][20][21][22][23], electroplating [24] electrodeposition [25], pulsed laser deposition [26], sol-gel [27][28][29], successive ionic layer adsorption and reaction (SILAR) [30] and spray pyrolysis [31][32][33][34][35][36]. Some of these methods have been employed to produce single oxide Cu x O thin films and among these methods, spray pyrolysis has been proven to be simple, cheap and fast to scale-up.…”

Section: Introductionmentioning

confidence: 99%

Effect of Precursor Solvents on the Optical Properties of Copper Oxide Thin Films Deposited Using Spray Pyrolysis for Optoelectronic Applications

Fasasi¹

2018

AJMSP

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Copper oxide thin films were deposited on Pyrex glass substrates by spray pyrolysis using ethanol and distilled water (DW) respectively as solvents. Rutherford backscattering spectroscopy results indicated that films from aqueous are thicker than those of alcoholic solutions. Rutherford backscattering spectroscopic compositional results showed the films to be mainly CuO. Optical transmittance measurement of the films was analyzed to obtain the band gap, Urbach energy, optical conductivity, refractive index and the extinction coefficient which were found to be dependent on the solvent used and strongly influenced by the photon energy. The use of Tauc's equation for calculating the bandgap indicated possible direct and indirect optical transitions. The refractive index of the films which showed normal dispersion behavior were also analyzed using single oscillator model to determine the dispersion parameters such as the dispersion energy, average oscillator strength and wavelength, zero and high frequency dielectric constant, zero frequency refractive index, optical charge carrier density, mobility and resistivity. All the determined values are higher for ethanol than aqueous samples.

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Section: Introductionmentioning

confidence: 99%

Effect of Precursor Solvents on the Optical Properties of Copper Oxide Thin Films Deposited Using Spray Pyrolysis for Optoelectronic Applications

Fasasi¹

2018

AJMSP

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“…The preparation of CuO thin films using various techniques is reported in the literature. These encompass methods such as molecular beam epitaxy [ 17 – 19 ], direct current magnetron sputtering [ 4 , 20 – 21 ], and pulsed laser deposition [ 22 – 24 ]. Alternative approaches involve techniques such as chemical vapor deposition [ 25 – 27 ] and atomic layer deposition [ 28 – 30 ].…”

Section: Introductionmentioning

confidence: 99%

Effect of repeating hydrothermal growth processes and rapid thermal annealing on CuO thin film properties

Ozga,

Zielony,

Wierzbicka

et al. 2024

Beilstein J. Nanotechnol.

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This paper presents an investigation into the influence of repeating cycles of hydrothermal growth processes and rapid thermal annealing (HT+RTA) on the properties of CuO thin films. An innovative hydrothermal method ensures homogeneous single-phase films initially. However, their electrical instability and susceptibility to cracking under the influence of temperature have posed a challenge to their utilization in electronic devices. To address this limitation, the HT+RTA procedure has been developed, which effectively eliminated the issue. Comprehensive surface analysis confirmed the procedure’s ability to yield continuous films in which the content of organic compounds responsible for the formation of cracks significantly decreases. Structural analysis underscored the achieved improvements in the crystalline quality of the films. The implementation of the HT+RTA procedure significantly enhances the potential of CuO films for electronic applications. Key findings from Kelvin probe force microscopy analysis demonstrate the possibility of modulating the work function of the material. In addition, scanning capacitance microscopy measurements provided information on the changes in the local carrier concentration with each repetition. These studies indicate the increased usefulness of CuO thin films obtained from the HT+RTA procedure, which expands the possibilities of their applications in electronic devices.

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Investigation of variation of energy of laser beam on structural, electrical and optical properties of pulsed laser deposited CuO thin films

Cited by 2 publications

References 0 publications

Effect of Precursor Solvents on the Optical Properties of Copper Oxide Thin Films Deposited Using Spray Pyrolysis for Optoelectronic Applications

Effect of Precursor Solvents on the Optical Properties of Copper Oxide Thin Films Deposited Using Spray Pyrolysis for Optoelectronic Applications

Effect of repeating hydrothermal growth processes and rapid thermal annealing on CuO thin film properties

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