Enhanced photoelectrochemical activity in all-oxide heterojunction devices based on correlated "metallic" oxides.

Apgar, Brent A; Lee, Sungki; Schroeder, Lauren E; Martin, Lane W · Adv Mater · 2013

basic_science · Level V

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Abstract

n-n Schottky, n-n ohmic, and p-n Schottky heterojunctions based on TiO2 /correlated "metallic" oxide couples exhibit strong solar-light absorption driven by the unique electronic structure of the "metallic" oxides. Photovoltaic and photocatalytic responses are driven by hot electron injection from the "metallic" oxide into the TiO2 , enabling new modalities of operation for energy systems.

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