6-inch uniform vertically-oriented graphene on soda-lime glass for photothermal applications

摘要

Vertically-oriented graphene (VG) has many advantages over flat lying graphene,including a large surface area,exposed sharp edges,and non-stacking three-dimensional geometry.Recently,VG nanosheets assembled on specific substrates have been used for applications in supersensitive gas sensors and high-performance energy storage devices.However,to realize these intriguing applications,the direct growth of high-quality VG on a functional substrate is highly desired.Herein,we report the direct synthesis of VG nanosheets on traditional soda-lime glass due to its low-cost,good transparency,and compatibility with many applications encountered in daily life.This synthesis was achieved by a direct-current plasma enhanced chemical vapor deposition (dc-PECVD) route at 580 ℃,which is right below the softening point of the glass,and featured a scale-up size ～ 6 inches.Particularly,the fabricated VG nanosheets/glass hybrid materials at a transmittance range of 97％-34％ exhibited excellent solarthermal performances,reflected by a 70％-130％ increase in the surface temperature under simulated sunlight irradiation.We believe that this graphene glass hybrid material has great potential for use in future transparent "green-warmth" construction materials.