To investigate the effect of gas dispersing carbon nanotubes (CNTs) and hot pressing method on the transparency and the conductivity of thin films, the free arc was used to disperse the CNTs in a high dispersion rate, and the dispersed CNTs were rapidly pressed into the surface of the PET film by hot pressing to obtain electrical conductivity. The relationship between the light transmission and sheet resistance of the film was studied by changing the deposition time and the presence or absence of electrostatic adsorption. It was found that the CNTs modified film still retains good electrical conductivity (sheet resistance up to 6 × 104 Ω, light transmittance 69%) through the cleaning of surfactants and ultrasonic waves, which proves that hot pressing is a simple physical method to achieve effective combination of CNTs and films.

    Abstract
    1 Introduction
    2 Materials and methods
        2.1 Materials
        2.2 Preparation of light-transmissive conductive film
        2.3 Characterization of light-transmitting conductive film
    3 Results and discussion
        3.1 Microscopic characterization of light-transmissive conductive films
        3.2 Electrical properties of light-transmissive conductive films
        3.3 Light transmission characterization of light-transmitting conductive film
    4 Conclusions
    Acknowledgements 
    References

• Shaolong Li(Qingdao University of Science and Technology)
• Kai Wang(Qingdao University of Science and Technology)
• Meng Feng(Qingdao University of Science and Technology)
• Huilu Yang(Qingdao University of Science and Technology)
• Xingyang Liu(Qingdao University of Science and Technology)
• Yan He(Qingdao University of Science and Technology)
• Chuanqi Zhang(Qingdao University of Science and Technology)
• Jinyu Wang(Qingdao University of Science and Technology)
• Jinfeng Fu(Qingdao University of Science and Technology)
• Jinfeng Fu(Qingdao University of Science and Technology)