Irreversible extinction of ferroelectric polarization in P(VDF-TrFE) thin films upon melting and recrystallization

Title
Irreversible extinction of ferroelectric polarization in P(VDF-TrFE) thin films upon melting and recrystallization
Authors
Lee, Han Sup
Keywords
POLYMER, CRYSTALLIZATION
Issue Date
2006-06
Publisher
American Institute of Physics
Abstract
We observed the irreversible extinction of ferroelectric polarization in spun coated poly(vinylidene fluoride-co-trifluoroethylene) thin films upon melting and recrystallization. We investigate the alteration of the ferroelectric properties correlated with the preferred polymer crystal orientation with respect to the electrodes using grazing incident scattering, spectroscopy, and electron microscopes. Heat treatment above melting point gave rise to the significant reduction of the ferroelectric performance mainly caused by the modification of molecular orientation of polymer crystals whose c and b axes are perpendicular and parallel to the electrode surface, respectively, leading to almost zero effective electric field.
URI
http://dspace.inha.ac.kr/handle/10505/1493
ISSN
0003-6951
Appears in Collections:
College of Engineering(공과대학) > Applied Organic Materials Engineering (유기응용재료공학) > Journal Papers, Reports(유기응용재료공학 논문, 보고서)
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