Please use this identifier to cite or link to this item: https://doi.org/10.1002/chem.201303970
Title: Preparation and unique electrical behaviors of monodispersed hybrid nanorattles of metal nanocores with hairy electroactive polymer shells
Authors: Cai, T.
Zhang, B.
Chen, Y.
Wang, C.
Zhu, C.X.
Neoh, K.-G. 
Kang, E.-T.
Keywords: electrical behaviors
hairy hybrid nanorattle
memory devices
oxidative graft polymerization
poly(3-hexylthiophene)
Issue Date: 3-Mar-2014
Source: Cai, T., Zhang, B., Chen, Y., Wang, C., Zhu, C.X., Neoh, K.-G., Kang, E.-T. (2014-03-03). Preparation and unique electrical behaviors of monodispersed hybrid nanorattles of metal nanocores with hairy electroactive polymer shells. Chemistry - A European Journal 20 (10) : 2723-2731. ScholarBank@NUS Repository. https://doi.org/10.1002/chem.201303970
Abstract: A versatile template-assisted strategy for the preparation of monodispersed rattle-type hybrid nanospheres, encapsulating a movable Au nanocore in the hollow cavity of a hairy electroactive polymer shell (Au@air@PTEMA-g-P3HT hybrid nanorattles; PTEMA: poly(2-(thiophen-3-yl)ethyl methacrylate; P3HT: poly(3-hexylthiophene), was reported. The Au@silica core-shell nanoparticles, prepared by the modified Stöber sol-gel process on Au nanoparticle seeds, were used as templates for the synthesis of Au@silica@PTEMA core-double shell nanospheres. Subsequent oxidative graft polymerization of 3-hexylthiophene from the exterior surface of the Au@silica@PTEMA core-double shell nanospheres allowed the tailoring of surface functionality with electroactive P3HT brushes (Au@silica@PTEMA-g-P3HT nanospheres). The Au@air@ PTEMA-g-P3HT hybrid nanorattles were obtained after etching of the silica interlayer by HF. The as-prepared nanorattles were dispersed into an electrically insulating polystyrene matrix and for the first time used to fabricate nonvolatile memory devices. As a result, unique electrical behaviors, including insulator behavior, write-once-read-many-times and rewritable memory effects, and conductor behavior as well, were observed in the Al/Au@air@PTEMA-g-P3HT+PS/ITO (ITO: indium-tin oxide) sandwich thin-film devices. A moving core: A versatile template-assisted strategy for the preparation of monodispersed rattle-type hybrid nanospheres encapsulating a movable Au nanocore in the hollow cavity of a hairy electroactive polymer shell has been reported. The as-prepared nanorattles have been dispersed into an electrically insulating polystyrene matrix and used for the first time to fabricate nonvolatile memory devices (see figure, PTEMA: poly[2-(thiophen-3-yl)ethyl methacrylate]; P3HT: poly(3-hexylthiophene), ITO=indium tin oxide). © 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
Source Title: Chemistry - A European Journal
URI: http://scholarbank.nus.edu.sg/handle/10635/89894
ISSN: 09476539
DOI: 10.1002/chem.201303970
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