• 文献标题:   Solution processed transparent conductive hybrid thin films based on silver nanowires, zinc oxide and graphene
  • 文献类型:   Article
  • 作  者:   ARAT R, JIA GB, DELLITH J, DELLITH A, PLENTZ J
  • 作者关键词:   transparent conductive electrode, silver nanowire, zinc oxide nanoparticle, graphene coating, optoelectronic propertie
  • 出版物名称:   MATERIALS TODAY COMMUNICATIONS
  • ISSN:  
  • 通讯作者地址:  
  • 被引频次:   5
  • DOI:   10.1016/j.mtcomm.2021.102162 EA FEB 2021
  • 出版年:   2021

▎ 摘  要

Transparent conductive hybrid thin films based on silver nanowires (AgNW), zinc oxide (ZnO) and graphene were prepared using solution processing methods. For this study, the hexagonal (wurtzite) ZnO particles with a flower-like structure were synthesized by sol-gel reaction using zinc acetate dihydrate as a precursor at room temperature and pH value of 10. Ethanol dispersions of ZnO and commercial AgNW were deposited by spincoating method on glass substrates with fixed parameters to obtain AgNW-ZnO and ZnO-AgNW films, then their surfaces were covered with monolayer graphene flakes (MGFs) using a double self-assembly (DSA) process. The hybrid ZnO-AgNW-MGFs and AgNW-ZnO-MGFs films were characterized by XRD, SEM, UV?vis, four-point probe conductivity measurement, thermal (85 degrees C for 120 h) and long-term (ambient condition for 120 days) stability analyzes. The transmittances of AgNW-ZnO and ZnO-AgNW films were identical at 550 nm (80 %) and their sheet resistances (R-s) values were measured as 20.6 and 21.6 Omega/sq, respectively. After the MGFs deposition, the transmittances of hybrid films reduced to 72.5 and 76.8 %, while their R-s values decreased to 17.6 and 21.4 Omega/sq, respectively. Graphene flakes coating both enhanced the conductivity of hybrid films by improving the connection between silver nanowires and increased the thermal and long-term ambient stability of the films due to its barrier property against oxidation of silver nanowires.