期刊
NANO LETTERS
卷 12, 期 6, 页码 2797-2802出版社
AMER CHEMICAL SOC
DOI: 10.1021/nl204587t
关键词
Multidimensional nanostructures; conducting polymers; flexible sensors; chemical nerve agents; DMMP
类别
资金
- National Research Foundation of Korea (NRF) [2011-0017125]
- World Class University (WCU) through the NRF
- Ministry of Education, Science and Technology (MEST) [R31-10013]
- International S&T Cooperation through the NRF [K20903002024-11E0100-04010]
- MEST
Tailoring the morphology of materials in the nanometer regime is vital to realizing enhanced device performance. Here, we demonstrate flexible nerve agent sensors, based on hydroxylated poly(3,4-ethylenedioxythiophene) (PEDOT) nanotubes (HPNTs) with surface substructures such as nanonodules (NNs) and nanorods (NRs). The surface substructures can be grown on a nanofiber surface by controlling critical synthetic conditions during vapor deposition polymerization (VDP) on the polymer nanotemplate, leading to the formation of multidimensional conducting polymer nanostructures. Hydroxyl groups are found to interact with the nerve agents. Representatively, the sensing response of dimethyl methylphosphonate (DMMP) as a simulant for sarin is highly sensitive and reversible from the aligned nanotubes. The minimum detection limit is as low as 10 ppt. Additionally, the sensor had excellent mechanical bendability and durability.
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