01583nas a2200145   4500008004100000022001400041245006100055210006000116260008900176300000800265520102900273100002001302700002401322856009101346       2009                        eng d  a1618-722900aStudy of dielectric behavior in PVDF/clay nanocomposites0 aStudy of dielectric behavior in PVDFclay nanocomposites  a1, QUAI LEZAY-MARNESIA, F067000 STRASBOURG, FRANCEbEUROPEAN POLYMER FEDERATIONcSEP  a1123 a<p>A high dielectric permittivity nanocomposite based on poly( vinylidene fluoride) (PVDF) and organically modified clay is reported. The present work aims to study the effect of clay on dielectric behavior of PVDF. The dielectric permittivity study shows a remarkable enhancement in the permittivity of nanocomposites in the low frequency region. The obtained permittivity values fits quite well to the prediction of dielectric permittivity from Vo-Shi model, which takes contribution of interface to permittivity into account. This enhanced permittivity in nanocomposites is attributed to the presence of interfacial polarization. The interface effect is further studied with cole-cole plot analysis. The dielectric loss study of pristine PVDF shows two relaxations associated with segmental (glass transition relaxation) and crystalline chain relaxation. However in the PVDF/Clay nanocomposites crystalline relaxation peak disappears which is attributed to the formation of the beta phase in PVDF/clay nanocomposites.</p>1 aChanmal, Chetan1 aJog, Jyoti, Prakash  uhttps://library.ncl.res.in/content/study-dielectric-behavior-pvdfclay-nanocomposites-001630nas a2200241   4500008004100000022001400041245010900055210006900164260010600233300001400339490000800353520069400361653002401055653002801079653000901107653003401116100002001150700002001170700002001190700002401210700002901234856012501263       2011                        eng d  a0038-109800aStrong electric field modulation of transport in PVDF/MWCNT nanocomposite near the percolation threshold0 aStrong electric field modulation of transport in PVDFMWCNT nanoc  aTHE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLANDbPERGAMON-ELSEVIER SCIENCE LTDcNOV  a1612-16150 v1513 a<p>A nanocomposite comprising of multiwalled carbon nanotubes (MWCNT) embedded in ferroelectric Poly(vinylidene fluoride) PVDF polymer matrix is examined for electric field induced transport modulation. The pulsed laser deposition (PLD) grown thin films of the nanocomposite with different MWCNT content were characterized. When used as a channel layer in a field effect transistor configuration, a strong electric field modulation of the transport was realized just below the percolation threshold. We believe that this nanocomposite non-percolating channel concept can provide several opportunities for FET devices for organic electronics. (C) 2011 Elsevier Ltd. All rights reserved.</p>10aField effect device10apulsed laser deposition10aPVDF10aScanning tunneling microscopy1 aChanmal, Chetan1 aDeo, Meenal, S.1 aRana, Abhimanyu1 aJog, Jyoti, Prakash1 aOgale, Satishchandra, B.  uhttps://library.ncl.res.in/content/strong-electric-field-modulation-transport-pvdfmwcnt-nanocomposite-near-percolation-0