Olenych Igor B, Aksimentyeva Olena I, Monastyrskii Liubomyr S, Horbenko Yulia Yu, Yarytska Lidia I
Radioelectronics and Computer Systems Department, Ivan Franko National University of Lviv, 50 Dragomanov Street, 79005 Lviv, Ukraine.
Physical and Colloidal Chemistry Department, Ivan Franko National University of Lviv, 6 Kyrylo and Mefodiy Street, 79005 Lviv, Ukraine.
Nanoscale Res Lett. 2015 Apr 18;10:187. doi: 10.1186/s11671-015-0896-1. eCollection 2015.
In this work, we have prepared film sensor elements based on a hybrid system poly(3,4-ethylenedioxythiophene)-porous silicon nanocrystals-carbon nanotubes on flexible polymer substrates. Our FTIR spectroscopy-based studies for the molecular structure of the materials obtained suggest some interaction of their components in the hybrid layer. The influence of adsorption of water molecules on the conductivity and capacitance of the hybrid composites has been investigated in the temperature range of 20°C to 40°C. We have detected essential changes in the electrical conductivity and capacitance which depend on the humidity of the surrounding atmosphere. For estimating the sensing properties of our composites, we have analyzed the sensing abilities of the hybrid systems and their dynamic characteristics. The hybrid composites as working materials for the sensors provide improved performance of the latter. In particular, the response time is reduced by 3 to 5 times.
73.63.-b, 73.61.Ph, 82.35.Np, 81.05.Rm.
在本工作中，我们在柔性聚合物基底上制备了基于聚（3,4-乙撑二氧噻吩）-多孔硅纳米晶体-碳纳米管混合体系的薄膜传感器元件。我们基于傅里叶变换红外光谱对所得材料的分子结构进行的研究表明，混合层中各组分之间存在一些相互作用。在20°C至40°C的温度范围内，研究了水分子吸附对混合复合材料电导率和电容的影响。我们检测到电导率和电容发生了显著变化，这些变化取决于周围大气的湿度。为了评估我们复合材料的传感性能，我们分析了混合体系的传感能力及其动态特性。作为传感器工作材料的混合复合材料提高了传感器的性能。特别是，响应时间缩短了3至5倍。
73.63.-b，73.61.Ph，82.35.Np，81.05.Rm。
