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Structural, morphological, hydrophilic and optical study of as synthesized and annealed Cl doped CdZnS thin films

SURESH KUMAR1, AFTAB ALAM2, RAJEEV RANJAN3, S. R. KUMAR4, S. K. SHARMA5, K. P. TIWARY6,*

Affiliation

  1. Department of Physics, Chaibasa Engineering College, Kelende, Jhinkpani, Jharkhand-833215, India
  2. Department of Engineering Physics, Al-Kabir Polytechnic, Mango Jamshedpur, Jharkhand-831012, India
  3. Department of Electronics and Communication Engineering, Birla Institute of Technology Mesra, Patna Campus, Patna-800014, India
  4. Department of Applied Science & Humanities, National Institute of Advanced Manufacturing Technology, Ranchi, Jharkhand-834003, India
  5. Department of Physics, Indian Institute of Technology (Indian School of Mines), Dhanbad, Jharkhand-826004, India
  6. Department of Physics, Birla Institute of Technology, Mesra, Patna Campus, Bihar-800014, India

Abstract

Chemical bath deposition technique was used to create a thin film of chlorine doped CdZnS in a non-aqueous medium. Thiourea [SC(NH2)2], sodium chloride [NaCl], cadmium acetate [Cd(CH3CO2)2], and zinc sulphate [ZnSO4] were employed as precursors to develop Cl doped CdZnS thin films. The deposited film is annealed in air at 3500c. The films have been characterized by XRD, FESEM, EDS, WCA, Raman and FTIR. According to XRD study, while being deposited and annealed, Cl doped CdZnS films have hexagonal crystal structure with (002) preferred orientation. The evaluation of the numerous characteristics via XRD spectra includes grain size, micro strain and dislocation density. FESEM study shows that as deposited film surface exhibit fibre net arrangements, but after being annealed at 350°c, the surfaces are compact and fine-grained. WCA investigations verified that annealing makes the surface less hydrophilic. FTIR investigations verified the existence of various functional groups and chemical bonds..

Keywords

XRD, FESEM, Non aqueous, Cl doped CdZnS, Thin films.

Submitted at: July 6, 2023
Accepted at: Feb. 12, 2024

Citation

SURESH KUMAR, AFTAB ALAM, RAJEEV RANJAN, S. R. KUMAR, S. K. SHARMA, K. P. TIWARY, Structural, morphological, hydrophilic and optical study of as synthesized and annealed Cl doped CdZnS thin films, Journal of Optoelectronics and Advanced Materials Vol. 26, Iss. 1-2, pp. 74-80 (2024)