Structural, Optical and Magnetic Properties of Cd1 – xMnxS Nanocrystalline Thin Films at Room Temperature

Authors Ashok E. Mali, Anil S. Gaikwad, Sanjay V. Borse, Rajendra R. Ahire

1Department of Physics, SPDM College, 425405 Shirpur, Dist. Dhule (MS), India

2Department of Physics, SSVPS College, 425406 Shindkheda, Dist. Dhule (MS), India

3Department of Physics, SG Patil College, 424304 Sakri, Dist. Dhule (MS), India

Issue Volume 14, Year 2022, Number 4
Dates Received 24 June 2022; revised manuscript received 11 August 2022; published online 25 August 2022
Citation Ashok E. Mali, Anil S. Gaikwad, Sanjay V. Borse, Rajendra R. Ahire, J. Nano- Electron. Phys. 14 No 4, 04002 (2022)
PACS Number(s), 78.66.Hf,, 85.25.Dq, 75.70.Ak
Keywords CdMnS films, Mn2+ magnetic ions, DMS (3) , Lattice parameters, Magnetic measurements.

Cd1 – xMnxS (x ( 0.0, 0.2, 0.4, 0.6, 0.8, and 1.0) films were prepared using a low-cost chemical bath deposition (CBD) technique onto the glass substrate. Films were obtained at an optimized bath temperature of 80 (C and pH of 11. In the current study, we investigated the structural, optical, and magnetic properties of the as-deposited thin films. The X-ray diffraction (XRD) result confirmed that the nanocrystalline structure has a high aspect ratio compared to CdMnS films. XRD suggests hexagonal wurtzite and cubic structures with growth orientation along the (002) direction. The lattice parameter ‘a’ decreased from 4.126 to 4.003 Å. The same trend in the lattice parameter ‘c’ with x was observed (5.263 to 5.200 Å). The optical properties of as-deposited Cd1 – xMnxS nanocrystalline films were studied at room temperature using a UV-visible spectrophotometer. The optical band gap is found to be enhanced with Mn2+ composition. Group II-VI-based diluted magnetic semiconductors (DMS) show distinct magnetic phases at low and room temperatures. The magnetic behavior and susceptibility studies were carried out using a superconducting quantum interference device (SQUID) on a vibrating sample magnetometer (VSM) in the range of dc magnetic field of 0-40 kOe at room temperature.

List of References