Why some metals turn transparent: A key mechanism for touchscreen conductors
phys.org
phys.org
> Abstract: [...] Our findings suggest that e-ph interactions may surpass e−e scattering in governing the resistivity of metallic ionic lattices
> Although metals normally reflect visible light, some metallic oxides behave differently and become unexpectedly transparent.
It's like comparing the Hydrogen in a Zeppelin to the water in the river.