The Inter-play of the Opto-Electrical Properties of Cuprite and Tenorite Semiconductors for Solar Cell Application
American Journal of Nano Research and Applications
Volume 5, Issue 6, December 2017, Pages: 81-86
Received: Oct. 12, 2017; Accepted: Oct. 23, 2017; Published: Dec. 7, 2017
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Agumba Onyango John, Department of Mathematics and Physics, Pwani University, Kilifi, Kenya
Adem Abibo Jack, Department of Biological and Physical Sciences, Jaramogi Oginga Odinga University of Science and Technology, Bondo, Kenya
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The electrical and optical properties of cuprous oxide (Cu2O) thin films prepared by D.C. reactive magnetron sputtering technique have been systematically studied. The influence of the film deposition conditions on the opto-electrical properties has been investigated and has helped to solve the puzzles of difficulties associated with preparation of high quality Cu2O films. This is because there is usually co-deposition of phases of Cu, Cu2O and CuO during the preparation of Cu2O films. From this study, the films deposited at low substrate temperature were found to be less crystalline as compared to those deposited at high substrate temperature. This was corroborated by the drop in the sheet resistivity from ~55.08Ω cm to ~29.66Ω cm and the band gap from ~2.36eV to ~1.63eV for films prepared at substrate temperatures of 23°C and 170°C respectively. Annealing was also found to improve the film crystallinity.
Cuprite, Tenorite, Optical, Electrical, Sputtering, Annealing
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Agumba Onyango John, Adem Abibo Jack, The Inter-play of the Opto-Electrical Properties of Cuprite and Tenorite Semiconductors for Solar Cell Application, American Journal of Nano Research and Applications. Vol. 5, No. 6, 2017, pp. 81-86. doi: 10.11648/j.nano.20170506.11
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