so this is an order higher than that of graphen then

Yes, the electrical conductivity of silver is higher than that of graphene. While silver has a conductivity of approximately 6 x 10^7 S/m, graphene has a lower conductivity of around 6 x 10^5 to 1 x 10^6 S/m.

Although graphene is considered a highly conductive material, silver still outperforms it in terms of electrical conductivity. This is mainly because silver has a more ordered crystal structure and a higher density of free electrons, allowing for better electron flow.

However, graphene possesses other unique properties such as exceptional mechanical strength, flexibility, and high electron mobility, which make it suitable for various applications like flexible electronics, sensors, and energy storage devices. Despite having slightly lower conductivity compared to silver, graphene's other properties make it an interesting material for research and development in many fields.