Highly conductive polythiophene films doped with chloroauric acid for dual-mode sensing of volatile organic amines and thiols
Highly conductive polythiophene films doped with chloroauric acid for dual-mode sensing of volatile organic amines and thiols
复制标题
掺杂氯金酸的高导电聚噻吩薄膜用于挥发性有机胺和硫醇的双模式传感
DOI：
10.1016/j.snb.2016.12.018
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发表时间：
2017-05
期刊：
影响因子：
--
通讯作者：
Shaowei Chen
中科院分区：
文献类型：
--
作者：
Dengke Zhao;Ligui Li;Wenhan Niu;Shaowei Chen
以HAuCl 4为掺杂剂，采用溶液法制备了电导率为71.7S/cm的高导电聚噻吩薄膜。由此制备的聚噻吩膜的自由电荷载流子密度估计为4.48 × 1021/cm 3。此外，掺杂后，聚合物薄膜的颜色发生了显着变化，其主要吸收峰从可见光区向近红外区红移。有趣的是，聚噻吩膜可以很容易地去掺杂时，暴露于有机胺和硫醇。因此，利用膜的颜色和导电性的双重变化的逻辑电路的设计和制造，与聚噻吩膜掺杂的电化学氧化，用于选择性检测挥发性胺和硫醇的检测限低于1 ppm。结果表明，这种溶液掺杂方法在制备用于蒸汽传感的高导电有机薄膜中具有很高的潜力。
Highly conductive polythiophene films with electrical conductivity of 71.7 S/cm were prepared by using a facile solution-processing method with HAuCl4as a dopant. The density of free charge carriers for thus-prepared polythiophene films was estimated to be 4.48 × 1021/cm3. In addition, upon doping, the color of the polymer films changed significantly with the main absorption peaks bathochromically shifted from the visible to near-infrared region. Interestingly, the polythiophene films could be easily dedoped when exposed to organic amines and thiols. The dual variations of film color and electrical conductivity thus were exploited for the design and fabrication of a logic circuit, in combination with polythiophene films doped by electrochemical oxidation, for selective detection of volatile amines and thiols with a detection limit lower than 1 ppm. The results demonstrate the high potential of this solution-doping method in the preparation of highly conducting organic thin films for vapor sensing.
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影响因子：
9.5
作者：
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通讯作者：
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影响因子：
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作者：
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DOI：
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发表时间：
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期刊：
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影响因子：
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影响因子：
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作者：
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