期刊
THIN SOLID FILMS
卷 517, 期 10, 页码 3152-3156出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.tsf.2008.11.097
关键词
Aluminum zinc oxide; Sputtering; Flexible substrate; Solar cell
Thick aluminum-doped zinc oxide films were deposited at substrate temperatures from 100 degrees C to room temperature on polyethylene terephthalate by radio frequency magnetron sputtering, varying the deposition parameters such as radio frequency power and working pressure. Structural, optical and electrical properties were analyzed using an x-ray diffractometer, a spectrophotometer and a four-point probe, respectively. Films were polycrystalline showing a strong preferred c-axis orientation (002). The best optical and electrical results were achieved using a substrate temperature of 100 degrees C. Furthermore, high transmittances close to 80% in the visible wavelength range were obtained for those films deposited at the lowest Argon pressure used of 0.2 Pa. In addition, resistivities as low as 1.1 X 10(-3) Omega cm were reached deposited at a RF power of 75 W. Finally, a comparison of the properties of the films deposited on polymer and glass substrates was performed, obtaining values of the figure of merit for the films on polymer comparable to those obtained on glass substrates, 17,700 Omega(-1) cm(-1) vs 14,900 Omega(-1) cm(-1), respectively. (C) 2008 Elsevier B.V. All rights reserved.
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