Nanosphere lithography with variable deposition angle for the production of one‐directional transparent conductors

The production of high quality and cheap transparent electrodes is a fundamental step for a variety of optoelectronic devices. We present a method for the production of transparent conducting films optimised for electrical conduction in one direction. The deposition of a metal film through a perfectly aligned nanosphere‐lithography mask at variable incidence angle gave origin to parallel nanowires with thin interconnections. This structure showed excellent conductivity in one direction and high optical transparency. Glass substrates under the crystalline areas of the polystyrene‐nanospheres mask. Transparent and electrically conducting: it is not usual to find both properties in the same material. Still, transparent conductors are needed for several applications from photovoltaic cells to flat screens to heat reflective windows. Oddone and Giersig present a method for the production of well conducting metallic films with nanoholes for optical transparency. The nanostructure is created by a self‐assembled monolayer of nanospheres.