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P(VDF-TrFE) is a normal ferroelectric/ or copolymer, while P(VDF-TrFE-CTFE) is a relaxor ferroelectric / or terpolymer. The Frequency dependent antiferroelectric-like behavior and Electrocaloric Effect of the former two polymer blends were estimated. It showed very interesting results which has been described on the basis of FTIR, XRD and Frequency dependent Dielectric Constant in this book in detail. The enhancement in the Electrocaloric effect (ECE) with the operational frequency is attributed to the antiferroelectric to paraelectric transition of polyemer blends. Finally the butterfly curves observed with heating and cooling cycles which depict the phenomenon of refrigeration. The change in entropy with the operational frequency showed that we can increase the performance of an electrocaloric (EC) refrigerator by lowering its operating frequency.
About the author
Mudassar Shehzad was born in Islamic Republic of Pakistan in 1986. He received B.S degree in Materials Engineering in 2010 from Pakistan. After his graduation he served at Ghulam Ishaq Khan Institute (GIKI). He did his Masters from South Korea and joined National University of Sciences and Technology (NUST) as a Lecturer in Materials department.
