Effect of annealing on structural and optical properties of copper sulphide thin films

Fahd Elmourabit; Abdessamad Elhassani; Bouchaib Lemaalem; Amine El Moutaouakil; Abdelaziz Khoukh; Abdelfattah Narjis; Lhoussine Limouny; Said Dlimi

doi:10.1080/10667857.2024.2430664

Effect of annealing on structural and optical properties of copper sulphide thin films

Fahd Elmourabit, Abdessamad Elhassani, Bouchaib Lemaalem, Amine El Moutaouakil, Abdelaziz Khoukh, Abdelfattah Narjis, Lhoussine Limouny, Said Dlimi

Department of Electrical and Communication Engineering

Research output: Contribution to journal › Article › peer-review

Abstract

Using copper acetate (Cu₂(CH₃COO)₄) and thiourea (CH₄N₂S) as precursors, copper sulphide thin films were synthesized on glass substrates by the spin coating method followed by annealing in the nitrogen gas. X-Ray Diffraction patterns show that the as-deposited film is amorphous. Annealing at 350°C is observed to result in the conversion to the cubic chalcocite Cu₂S phase, which is confirmed by the EDX spectrum. The analysis of the UV-vis spectra reveals a transmittance of around 65% for the as-deposited film, which increases to 85% by annealing. The optical band gap is found to decrease from 2.70 to 2.55 eV by annealing.

Original language	English
Article number	2430664
Journal	Materials Technology
Volume	39
Issue number	1
DOIs	https://doi.org/10.1080/10667857.2024.2430664
Publication status	Published - 2024

Keywords

Copper sulphide
annealing
chalcocite CuS
spin coating
thin films

ASJC Scopus subject areas

General Materials Science
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

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10.1080/10667857.2024.2430664

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title = "Effect of annealing on structural and optical properties of copper sulphide thin films",

abstract = "Using copper acetate (Cu₂(CH₃COO)₄) and thiourea (CH₄N₂S) as precursors, copper sulphide thin films were synthesized on glass substrates by the spin coating method followed by annealing in the nitrogen gas. X-Ray Diffraction patterns show that the as-deposited film is amorphous. Annealing at 350°C is observed to result in the conversion to the cubic chalcocite Cu2S phase, which is confirmed by the EDX spectrum. The analysis of the UV-vis spectra reveals a transmittance of around 65% for the as-deposited film, which increases to 85% by annealing. The optical band gap is found to decrease from 2.70 to 2.55 eV by annealing.",

keywords = "Copper sulphide, annealing, chalcocite CuS, spin coating, thin films",

author = "Fahd Elmourabit and Abdessamad Elhassani and Bouchaib Lemaalem and {El Moutaouakil}, Amine and Abdelaziz Khoukh and Abdelfattah Narjis and Lhoussine Limouny and Said Dlimi",

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T1 - Effect of annealing on structural and optical properties of copper sulphide thin films

AU - Elmourabit, Fahd

AU - Elhassani, Abdessamad

AU - Lemaalem, Bouchaib

AU - El Moutaouakil, Amine

AU - Khoukh, Abdelaziz

AU - Narjis, Abdelfattah

AU - Limouny, Lhoussine

AU - Dlimi, Said

PY - 2024

Y1 - 2024

N2 - Using copper acetate (Cu₂(CH₃COO)₄) and thiourea (CH₄N₂S) as precursors, copper sulphide thin films were synthesized on glass substrates by the spin coating method followed by annealing in the nitrogen gas. X-Ray Diffraction patterns show that the as-deposited film is amorphous. Annealing at 350°C is observed to result in the conversion to the cubic chalcocite Cu2S phase, which is confirmed by the EDX spectrum. The analysis of the UV-vis spectra reveals a transmittance of around 65% for the as-deposited film, which increases to 85% by annealing. The optical band gap is found to decrease from 2.70 to 2.55 eV by annealing.

AB - Using copper acetate (Cu₂(CH₃COO)₄) and thiourea (CH₄N₂S) as precursors, copper sulphide thin films were synthesized on glass substrates by the spin coating method followed by annealing in the nitrogen gas. X-Ray Diffraction patterns show that the as-deposited film is amorphous. Annealing at 350°C is observed to result in the conversion to the cubic chalcocite Cu2S phase, which is confirmed by the EDX spectrum. The analysis of the UV-vis spectra reveals a transmittance of around 65% for the as-deposited film, which increases to 85% by annealing. The optical band gap is found to decrease from 2.70 to 2.55 eV by annealing.

KW - Copper sulphide

KW - annealing

KW - chalcocite CuS

KW - spin coating

KW - thin films

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Effect of annealing on structural and optical properties of copper sulphide thin films

Abstract

Keywords

ASJC Scopus subject areas

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