Effect of Spray Pyrolysis on the Properties of Chemically Sprayed CuO:Al Thin Films

Authors

  • Venkat Subramaniam PSG College of Arts and Science, Coimbatore, Tamil Nadu, India
  • T. Mahalingam Alagappa University, Karaikudi, Tamil Nadu, India
  • S. J. Helen Karunya University, Coimbatore, Tamil Nadu, India
  • P. Sumathi Rathinam Institutions, Coimbatore, Tamil Nadu, India

Keywords:

Thin film spray pyrolysis, XRD, optical properties, electrical properties

Abstract

Abstract

CuO:Al thin films were grown from 50 ml of spray solution on glass substrates by chemical spray at Ts=400°C using solution spray doping percentages of 0, 4, 5 and 6%. Copper acetate and aluminium chloride were used as Cu and Al sources, respectively. Independent of solution spray rate, the crystallites in CuO:Al films grow preferentially in the (201) plane, parallel to the substrates. The spray pyrolysis solution are using different percentages of influences in the structural properties, surface morphology, electrical properties are studied. The carrier concentration increases from 2.1019 to 1.1020 cm-3 when spray rate is increased from 0 to 3%, independent of film thickness, the carrier mobilities are always lower in slowly grown films. Sprayed CuO:Al films transmit 60–80% of the visible light while the increase and decrease in doping carrier concentration.

Author Biographies

Venkat Subramaniam, PSG College of Arts and Science, Coimbatore, Tamil Nadu, India

Department of Electronics

T. Mahalingam, Alagappa University, Karaikudi, Tamil Nadu, India

Department of Physics

S. J. Helen, Karunya University, Coimbatore, Tamil Nadu, India

Department of Physics

P. Sumathi, Rathinam Institutions, Coimbatore, Tamil Nadu, India

Department of Physics

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Published

2019-04-18

Issue

Vol. 4 No. 1 (2017)

Section

Articles

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