@article{bb3faf75e9ee4f1c8f16277b966a0c99,
title = "Conductivity in the I2-doped PBMPV conducting polymers",
abstract = "A series of I2-doped poly[2-buthoxy-5-methoxy-1,4-phenylenevinylene] (PBMPV) conducting polymers were synthesized and systematically studied by means of electrical conductivity measurements. The conductivity vs degree of doping as well as in situ and aging measurements reveal a peculiar behavior attributable to the dopant kinetics.",
keywords = "A. polymers, D. electronic transport",
author = "Lee, {C. H.} and Oh, {D. K.} and Lee, {Cheol Eui} and Jin, {J. I.} and Chung, {S. J.}",
note = "Funding Information: highert hant he initial conductivityd, uringt he4 8-60 h the doping and dedoping( or degradationp) rocesses spanT. he initiald ecreasien conductivityu pona gingc an reach an equilibrium, decreasingt hereaftera s the be ascribedto reactionso f thes amplew ith moisturea nd contributionb y the dedopingp rocessb ecomesg reater. oxygen in the measuremencte ll, but the anomalous Supportingo ur argumentsth, er egiono f the anomalous increasea fterwardiss rathers urprisingth ati s going to increase of the conductivity in Fig. 6 shows a be discussedab outb elow.A fter thea nomalouisn crease, time dependenceo f tin, characteristico f random thec onductivitys howeda steadyd ecreaseli,n eari n time. diffusion processes[1 3]. Following the aging process This linear decreaseo f the conductivityi s a novel by {\textquoteleft}2?-MijssbauerR, aman and X-ray photoelectron phenomenonw hich has not previouslyb een reported spectroscopies(X PS) may provide us with better anda t presentth eree xistsn o modelt hatc and escribeit experimentaslu pportfso r our supposition[2 -71. quantitativelya,l thoughit appearsto arisef rom dopant kinetics. The mosts trikingr esultb eingr eportedin thisw orki s the anomalousin creasew ith time of the conductivity even in air, indicativeo f a mechanismb y which the overallc onductivityc an increasefo r a certainp eriodo f time. While a completeu nderstandinogf the aging patternin our I*-dopedP BMPV may not be reacheda t this point, we suggestth e following modelt hats eems reasonablpyl ausiblein view of thed opingp rocessin this systemE. speciallyi n fully dopeds ampless ucha s that used for resultss hown in Fig. 4, the doping will be inhomogeneouasn d there will be excessivelyd oped regionsw herethe dopantsc oexistin the forms of I; and1 s. After thed opingi s finishedd opantsin thef orm of I; can decomposien to 17 and1 2a ndt her esultanIt2 moleculecsa nd iffise by chemicapl otentiadl ifferenceosr thermael nergya ndr ecombineto self-dopeo ther regions of thes ampleT. he processecsa nbe representeads Acknowledgements-This work was supportedb y the Korea Science and Engineering Foundation (961-0210-056-2a) nd Special Fund for University ResearchI nstitute through the Advanced Materials ChemistryR esearchC entera t Korea UniversityC. .H.L. wishes to acknowledgea postdoctoralf ellowship supportebdy the KOSEF.",
year = "1998",
month = jan,
doi = "10.1016/S0038-1098(97)10105-3",
language = "English",
volume = "105",
pages = "225--228",
journal = "Solid State Communications",
issn = "0038-1098",
publisher = "Elsevier Limited",
number = "4",
}