Multidimensional Conducting Polymer Nanotubes for Ultrasensitive Chemical Nerve Agent Sensing
详细信息 查看全文
- 作者：Oh Seok Kwon ; Seon Joo Park ; Jun Seop Lee ; Eunyu Park ; Taejoon Kim ; Hyun-Woo Park ; Sun Ah You ; Hyeonseok Yoon ; Jyongsik Jang
- 刊名：Nano Letters
- 出版年：2012
- 出版时间：June 13, 2012
- 年：2012
- 卷：12
- 期：6
- 页码：2797-2802
- 全文大小：460K
- 年卷期：v.12,no.6(June 13, 2012)
- ISSN：1530-6992
文摘
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.