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|Title:||Preparation and unique electrical behaviors of monodispersed hybrid nanorattles of metal nanocores with hairy electroactive polymer shells|
hairy hybrid nanorattle
oxidative graft polymerization
|Citation:||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|
|Appears in Collections:||Staff Publications|
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