Quadrivalently Doped Hematite Thin Films for Solar Water Splitting

Abstract

Quadrivalently Doped Hematite Thin Films for Solar Water SplittingHydrogen production using sun light is considered to be one of the most promising alternatives to fossil fuel-derived energy technology.This review presented the study on the photo-electrochemical (PEC) response of hematite (α-Fe O ) by quadrivalent doping results in n-type 2 3 conductivity.In general, dopants improve the conductivity of hematite thin films.The improved conductivity brought on the incorporation of the 3+ 4+dopant is most likely from the n-type lattice substitution of Fe by tetravalent ions, such as Si , resulting in a higher electron concentration.This supplementation may be carried out by employing a Tandem cell configuration.This induces a proper direction for the future course of investigations that may lead to an economic, renewable method for environment-friendly hydrogen production.