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P. DATTA1,2, M. SHARMIN3, J. PODDER3,* , S. CHOUDHURY1
- Department of Physics, University of Dhaka, Dhaka-1000, Bangladesh
- Nuclear Power Plant Company Bangladesh Limited, Rooppur NPP Bhaban, Dhaka-1000, Bangladesh
- Department of Physics, Bangladesh University of Engineering and Technology, Dhaka-1000, Bangladesh
Manganese (Mn) doped copper (II) oxide (CuO) thin films with 0 to 6 at% Mn doping were prepared onto the glass substrates at a temperature of 523 K using spray pyrolysis technique. The CuO and Mn doped CuO films showed monoclinic structure with the preferential orientation along (1 ̅11) and (111) planes after being annealed at 723 K in air for 60 min. The film surface was observed to be comprised of agglomerated nanoparticles under Scanning Electron Microscopy. Elemental composition of the films was confirmed by Energy Dispersive X-ray analysis. Optical transmittance and band gap of CuO thin film increased with Mn doping up to 4 at% in the visible-infrared region of light. Electrical resistivity of the samples decreased from 2.69×103 to 1.62×103 Ω-m with the increase of Mn doping. Activation energy of the films varied from 0.08 to 0.29 eV in the temperature region 323 - 383 K, whereas it varied from 0.29 to 0.40 eV in the temperature region 383 - 423 K..
Mn doped CuO, XRD, SEM and EDX, Band gap, Activation energy.
Submitted at: March 23, 2023
Accepted at: Oct. 6, 2023
P. DATTA, M. SHARMIN, J. PODDER, S. CHOUDHURY, Enhancement of the structural, morphological, optical, and electrical properties of Mn doped CuO thin films via spray pyrolysis, Journal of Optoelectronics and Advanced Materials Vol. 25, Iss. 9-10, pp. 508-516 (2023)
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