Influence of Mn2+ Magnetic Ions on the Properties of Cd1 – xMnxS Thin Films Synthesized by Chemical Bath Deposition

Автор(ы) A.E. Mali1, A.S. Gaikwad1, S.V. Borse2, R.R. Ahire3
Принадлежность

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

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

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

Е-mail aemalispdm@gmail.com
Выпуск Том 13, Год 2021, Номер 1
Даты Received 26 November 2020; revised manuscript received 15 February 2021; published online 25 February 2021
Ссылка A.E. Mali, A.S. Gaikwad, et al., J. Nano- Electron. Phys. 13 No 1, 01004 (2021)
DOI https://doi.org/10.21272/jnep.13(1).01004
PACS Number(s) 68.55.ag, 68.55.jd, 81.16.Be, 68.37.Hk, 78.66.Hf
Ключевые слова CdMnS films, Optical properties (22) , Electrical properties (19) , Chemical bath deposition (4) , Mn2+ ion.
Аннотация

II-VI semiconductor based ternary CdMnS compound material has received more attention due to its wide area of applications in semiconductor technology. Cd1 – xMnxS (x = 0, 0.2, 0.4, 0.6, 0.8 and 1.0) thin films were successfully prepared by chemical bath deposition technique on non-conducting glass substrates. Thin films were deposited at a bath temperature of 80 ºC and pH = 11 by using the chemical bath reaction of cadmium chloride (CdCl2) and manganese chloride (MnCl2) with thiourea (NH4)2S in an aqueous solution. Further, the prepared samples were characterized by UV-visible spectroscopy, photoluminescence, XRD, SEM and EDAX to study the optical, structural, surface, and chemical properties. Effect of Mn2+ ions on the film thickness of Cd1 – xMnxS films was investigated using weight difference technique. The film thickness of Cd1 – xMnxS films decreases as Mn2+ ions increase in the bath solution. The polycrystalline nature with hexagonal and cubic structures of the as-deposited films was confirmed by XRD. The band gap value of the deposited films was observed to increase with increasing Mn2+ ion concentration, this might be ascribed to the fact that Cd atom was substituted by Mn atom in the CdS structure. EDAX analysis confirmed the deposition of Cd, Mn and S elements in the films. Photoluminescence spectra of Cd1 – xMnxS with different values of the composition parameter x exhibited two emission peaks with different intensities. The measurement of the electrical resistivity of Cd1 – xMnxS films was performed at room temperature using two probe methods. The variation in electrical resistivity values with compositional parameters was discussed based on deposition parameters. The investigated polycrystalline Cd1 – xMnxS thin films show promising technological applications in semiconductor industry.

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