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Proceedings Paper

Preparation and properties of manganese dioxide thin films for applications in selective surface
Author(s): A. K. Mallick; M. Khairul Al Khan
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Paper Abstract

MnO2 thin films have been prepared by thermal evaporation technique onto glass substrate at varying deposition pressure. Electrical studies of the films deposited at about 1.5 X 10-5 Torr show a positive TCR indicating metallic characteristics, whereas a negative TCR indicating semiconducting behavior exhibit on the films deposited at a pressure of about 3.0 X 10-6 Torr. Thickness dependent electrical conductivity, activation energy, and aging effect were also carried out. Optical measurements in the wavelength range 0.3 < (lambda) < 2.5 micrometers show the films highly transparent in the visible. These studies may be of importance for the application of this material in surface coating for energy efficient devices.

Paper Details

Date Published: 25 November 1992
PDF: 12 pages
Proc. SPIE 1727, Optical Materials Technology for Energy Efficiency and Solar Energy Conversion XI: Selective Materials, Concentrators and Reflectors, Transparent Insulation and Superwindows, (25 November 1992); doi: 10.1117/12.130525
Show Author Affiliations
A. K. Mallick, Univ. of Rajshahi (Bangladesh)
M. Khairul Al Khan, Univ. of Rajshahi (Bangladesh)


Published in SPIE Proceedings Vol. 1727:
Optical Materials Technology for Energy Efficiency and Solar Energy Conversion XI: Selective Materials, Concentrators and Reflectors, Transparent Insulation and Superwindows

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