Abstract

The conditions of electrochemical deposition of the poly-3,4-ethylenedioxythiophene (PEDOT) thin films and the PEDOT films doped with graphene oxide (GO) on the surface of a transparent SnO₂ electrode have been established. As it has been shown by the transmission electron microscopy (TEM) the synthesized polymer films have the globular structure with uniform distribution of aggregates with the measuring of 80–90 nm. It has been found that the doping of PEDOT with GO nanoparticles led to the increase of globule sizes to 200–250 nm and composite structure formation with graphene oxide. The PEDOT doping with GO caused changes in the optical spectra of the polymer film and significantly increased (by 10 times) the sensory sensitivity of the obtained films to nitrogen (IV) oxide.

摘要

已经建立了在透明 SnO ₂电极表面电化学沉积聚 3,4-亚乙基二氧噻吩 (PEDOT) 薄膜和掺杂氧化石墨烯 (GO) 的 PEDOT 薄膜的条件。正如透射电子显微镜 (TEM) 所显示的，合成的聚合物薄膜具有球状结构，聚集体分布均匀，尺寸为 80-90 nm。已经发现，用 GO 纳米粒子掺杂 PEDOT 导致小球尺寸增加到 200-250 nm，并与氧化石墨烯形成复合结构。用 GO 掺杂的 PEDOT 导致聚合物薄膜的光谱发生变化，并显着增加（10 倍）所得薄膜对氮 (IV) 氧化物的感官敏感性。