Preparation and photoaging resistance of single-walled carbon nanotubes transparent conductive thin films for electrostatic dust removal of photovoltaic panels

Abstract

A single-walled carbon nanotubes transparent conductive film for electrostatic dust removal of photovoltaic panels was prepared by a rod coating method and subjected to xenon lamp aging experiments at different irradiance (300 W/m2, 150 W/m2, 50 W/m2, 2000 h) to investigate the photoaging resistance of the film. After aging, the light transmittance decreased from 91.34% to a minimum of 90.39%, the sheet resistance increased from 0.325 * 105 Ω/□ to a maximum of 4.753 * 105 Ω/□, the surface energy decreased, and the adhesive strength of the film at an irradiance of 300 W/m2 decreased from a class 5B to a class 4B. The film was used as the surface material of photovoltaic panels and was subjected to electrostatic dust removal experiments, which showed that the final dust removal rate of different aging types of films was between 97.5% and 98.5%, the power generation efficiency of photovoltaic panels can reach 93.5%− 97.8% of that of ordinary photovoltaic panels in the dust-free state on the surface, and excellent application results are achieved. The results of the study are conducive to expanding the application scenarios of single-walled carbon nanotubes transparent conductive films from indoor or air-isolated areas to outdoor ones.