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dc.contributor.authorLeong, Wei Linen
dc.contributor.authorMathews, Nripanen
dc.contributor.authorMhaisalkar, Subodh Gautamen
dc.contributor.authorLam, Yeng Mingen
dc.contributor.authorChen, Tupeien
dc.contributor.authorLee, Pooi Seeen
dc.identifier.citationLeong, W. L., Mathews, N., Mhaisalkar, S., Lam, Y. M., Chen, T., & Lee, P. S. (2009). Micellar poly(styrene-b-4-vinylpyridine)-nanoparticle hybrid system for non-volatile organic transistor memory. Journal of Materials Chemistry, 19(39), 7354-7361.en
dc.description.abstractWe present organic field-effect transistor (OFET) memories where in-situ synthesized gold (Au) nanoparticles in self-assembled polystyrene-block-poly-4-vinylpyridine (PS-b-P4VP) block copolymer nanodomains successfully functioned as charge storage elements. Both p-type (pentacene) and n-type (perfluorinated copper phthalocyanine) OFET based memories are reported, which have stable large charge capacity and programmable-erasable properties due to charge confinement in the embedded Au nanoparticles. Optical excitation has been utilized to demonstrate photogenerated minority carrier trapping in the Au nanoparticles for efficient erasing operations. The memory devices can hence be written and read electrically and erased optically, resulting in large memory windows (9–11 V), high on/off ratio between memory states (103–105) and long retention times (>1000 s). The results clearly indicate the utility of the block copolymer-nanoparticle approach for OFET based memories.en
dc.relation.ispartofseriesJournal of materials chemistryen
dc.rights© 2009 The Royal Society of Chemistry. This is the author created version of a work that has been peer reviewed and accepted for publication by Journal of Materials Chemistry, The Royal Society of Chemistry. It incorporates referee’s comments but changes resulting from the publishing process, such as copyediting, structural formatting, may not be reflected in this document. The published version is available at: [].en
dc.titleMicellar poly(styrene-b-4-vinylpyridine)-nanoparticle hybrid system for non-volatile organic transistor memoryen
dc.typeJournal Articleen
dc.contributor.schoolSchool of Materials Science & Engineeringen
dc.description.versionAccepted versionen
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