• 文献标题:   The effect of silver nanowires on the formation of aggregates of poly(3-hexylthiophene) in films deposited on reduced graphene oxide
  • 文献类型:   Article
  • 作  者:   GASCHO JLD, DA COSTA SF, MORCELLES KF, BERTEMES P, RECCO AAC, PEZZIN SH
  • 作者关键词:   graphene oxide, silver nanowire, poly 3hexylthiophene, casting, dipcoating, nanocomposite, energy relevance
  • 出版物名称:   JOURNAL OF NANOPARTICLE RESEARCH
  • ISSN:   1388-0764 EI 1572-896X
  • 通讯作者地址:  
  • 被引频次:   2
  • DOI:   10.1007/s11051-021-05287-1
  • 出版年:   2021

▎ 摘  要

This work aimed to develop an innovative composite material consisting of graphene oxide films coated with silver nanowires (AgNWs)/poly(3-hexylthiophene) (P3HT). Translucent chemically reduced graphene oxide (CGO) films, presenting electrical conductivity of ca. 5.2 x 10(1) S/m, as well as graphene oxide (GO) films, have been coated with high aspect ratio AgNWs (78 +/- 20 nm diameter and ca. 10-mu m length) and undoped P3HT, by casting and dip-coating. The presence of AgNWs favored the formation of H-aggregates of P3HT, both in toluene solution and in the films, lowering the degree of ordering of P3HT chains. The nanowires also tend to agglomerate in the presence of the conjugated polymer during the preparation of casted and dip-coating films from toluene solutions. Thus, AgNWs/P3HT films presented capacitive impedances similar to that of dielectric materials, while AgNWs/P3HT/CGO films showed behavior of resistive materials with conductivities between 1.5 and 4.2 x 10(1) S/m. Impedance and UV-Vis results also suggest that casted films present a better organization of P3HT chains than those deposited by dip-coating.