Sanviti Matteo, Alegria Angel, Martínez-Tong Daniel E
Centro de Física de Materiales (CFM, CSIC-UPV/EHU), P. Manuel Lardizábal 5, 20018 San Sebastián, Spain.
Departamento Polímeros y Materiales Avanzados: Física, Química y Tecnología, University of the Basque Country (UPV/EHU), P. Manuel Lardizábal 3, 20018 San Sebastián, Spain.
Soft Matter. 2022 Jun 22;18(24):4554-4564. doi: 10.1039/d1sm01712h.
Electrically conducting nanospheres of poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT:PSS) with tailored size were prepared using a solvent displacement technique. To fabricate these nanostructures, dried PEDOT:PSS was dissolved in ethylene glycol (EG) and the solution was precipitated in deionized water. The proposed fabrication route allowed obtaining a water-based dispersion of PEDOT:PSS nanospheres with good optical properties. To determine the physical properties of the nanospheres, we followed a nanoscale approach, using atomic force microscopy. Our nanoscale mechanical and electrical investigations showed that the nanospheres retained good physical and conductivity properties, compared to the commercial product. Moreover, the local studies indicated that the reprecipitation process and the spherical shape lead to a different arrangement of the PSS and PEDOT phases.
采用溶剂置换技术制备了具有定制尺寸的聚（3,4-乙撑二氧噻吩）：聚（苯乙烯磺酸盐）（PEDOT:PSS）导电纳米球。为了制造这些纳米结构，将干燥的PEDOT:PSS溶解在乙二醇（EG）中，然后将溶液沉淀在去离子水中。所提出的制造路线能够获得具有良好光学性能的PEDOT:PSS纳米球水基分散体。为了确定纳米球的物理性质，我们采用了纳米尺度方法，使用原子力显微镜。我们的纳米尺度力学和电学研究表明，与商业产品相比，这些纳米球保留了良好的物理和导电性能。此外，局部研究表明，再沉淀过程和球形导致了PSS和PEDOT相的不同排列。
