Electrode for photovoltaic cells and method of manufacture thereof

摘要

Disclosed herein is an article comprising a substrate (12); and a columnar structure, wherein the columnar structure comprises a semi-conductor and is disposed upon the substrate (12) in a manner wherein the longitudinal axis of the columnar structures is substantially perpendicular to the substrate (12). Disclosed herein is an electrode (10) that comprises a substrate (12) upon which is disposed an electron transport coating (14), wherein the electron transport coating (14) comprises a columnar structure.