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Proceedings Paper

Effect of organic flux on the colossal dielectric constant of CaCu3Ti4O12 (CCTO)
Author(s): Vishnu Razdan; Abhishek Singh; Brad Arnold; Fow-Sen Choa; Lisa Kelly; N. B. Singh
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Paper Abstract

We have used low temperature organics to achieve orientation of the grains of Ca2/3Cu3Ti4O12 (CCTO) compound to increase the resistivity. During the past fifteen years CCTO has been studied extensively for its performance as a dielectric capacitor. We have synthesized and grown large grains of pure Ca2/3Cu3Ti4O12 and doped compound, and studied the dielectric constant and resistivity. The grains were aligned by using a naphthalene-camphor eutectic. CCTO was mixed in the organic melt and oriented by the directional solidification method. This material has different characteristics than pure processed CCTO material. The effect of solidification conditions and its effect on the morphology and the dielectric constant, resistivity and loss tan delta of pure and doped CCTO are described in this article.

Paper Details

Date Published: 18 May 2015
PDF: 5 pages
Proc. SPIE 9493, Energy Harvesting and Storage: Materials, Devices, and Applications VI, 949308 (18 May 2015); doi: 10.1117/12.2177694
Show Author Affiliations
Vishnu Razdan, Carnegie-Mellon Univ. (United States)
Abhishek Singh, The Pennsylvania State Univ. (United States)
Brad Arnold, Univ. of Maryland (United States)
Fow-Sen Choa, Univ. of Maryland (United States)
Lisa Kelly, Univ. of Maryland (United States)
N. B. Singh, Univ. of Maryland (United States)


Published in SPIE Proceedings Vol. 9493:
Energy Harvesting and Storage: Materials, Devices, and Applications VI
Nibir K. Dhar; Achyut K. Dutta, Editor(s)

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