Growth, Structural and Optical characteristics of Citric Acid Doped Copper Sulphate Single Crystals Polymer Composites Photonic Applications

Year : 2025 | Volume : 14 | Special Issue 01 | Page : 482 488
    By

    A. Chandra Vadhana,

  • M. Shivani,

  • S. Vasanthi,

  • M. Nageshwari,

  • C. Rathika Thaya Kumari,

  • V. Ravisankar,

  • V. Chithambaram,

  1. Professor, Department of Physics, S. A. Engineering College, Poonamallee, Chennai, Tamil Nadu, India
  2. Tutor, Department of Biochemistry, Sree Balaji Medical College and Hospital Chrompet, Chennai, Tamil Nadu, India
  3. Assistant Professor, Department of Chemistry, Easwari Engineering College, Ramapuram, Chennai, Tamil Nadu, India
  4. Assistant Professor, Department of Physics, Bharath Institute of Higher Education and Research, Chennai, Tamil Nadu, India
  5. Assistant Professor, Department of Physics, Bharath Institute of Higher Education and Research, Chennai, Tamil Nadu, India
  6. Assistant Professor, Department of Physics, AMET University, Kannathur, Chennai, Tamil Nadu, India
  7. Professor, Department of Physics, Rajalakshmi Engineering College, Thandalam, Chennai, Tamil Nadu, India

Abstract

The organic material Citric Acid doped Copper Sulphate single crystals (CACS) was synthesized and single crystal was grown by slow evaporation method. The incorporation of citric acid, an organic compound, introduces polymer-like functional behavior into the crystal matrix, forming an organic-inorganic hybrid composite with enhanced optical and structural characteristics. Single crystal XRD confirmed the triclinic system with unit cell parameters: a = 5.96 Å, b = 6.11 Å, c = 10.74 Å, and angles α = 77.14°, β = 82.34°, γ = 72.64°. Powder XRD analysis displayed sharp peaks, indicating high crystallinity. FTIR spectra confirmed the presence of functional groups such as –OH and SO₄²⁻, validating the successful interaction of citric acid with the copper sulfate lattice and suggesting hydrogen bonding and molecular-level integration—features commonly seen in polymer-based systems.

Optical transparency studies using UV-Vis spectroscopy revealed a cut-off wavelength at 350 nm and a band gap of 3.55 eV, indicating excellent nonlinear optical (NLO) properties. The second harmonic generation (SHG) efficiency was tested using the Kurtz powder technique, and a high laser damage threshold (LDT) of 2.32 GW/cm² was observed—superior to that of standard materials like KDP. These results highlight the promise of CACS as a polymer-influenced hybrid composite material for photonic and optoelectronic applications, especially in environments demanding high optical clarity and laser durability. This study contributes to the growing interest in organic-inorganic composite crystals for next-generation NLO devices.

Keywords: Non-Linear optical materials, Composite materials, FTIR, nonlinear optical, CACS.

[This article belongs to Special Issue under section in Journal of Polymer & Composites (jopc)]

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How to cite this article:
A. Chandra Vadhana, M. Shivani, S. Vasanthi, M. Nageshwari, C. Rathika Thaya Kumari, V. Ravisankar, V. Chithambaram. Growth, Structural and Optical characteristics of Citric Acid Doped Copper Sulphate Single Crystals Polymer Composites Photonic Applications. Journal of Polymer & Composites. 2026; 14(01):482-488.
How to cite this URL:
A. Chandra Vadhana, M. Shivani, S. Vasanthi, M. Nageshwari, C. Rathika Thaya Kumari, V. Ravisankar, V. Chithambaram. Growth, Structural and Optical characteristics of Citric Acid Doped Copper Sulphate Single Crystals Polymer Composites Photonic Applications. Journal of Polymer & Composites. 2026; 14(01):482-488. Available from: https://journals.stmjournals.com/jopc/article=2026/view=229358


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Special Issue Subscription Review Article
Volume 14
Special Issue 01
Received 18/07/2025
Accepted 06/08/2025
Published 04/04/2026
Publication Time 260 Days
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