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Enhanced Photoelectrochemical Activity in All‐Oxide Heterojunction Devices Based on Correlated “Metallic” Oxides
Author(s) -
Apgar Brent A.,
Lee Sungki,
Schroeder Lauren E.,
Martin Lane W.
Publication year - 2013
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201303144
Subject(s) - materials science , oxide , heterojunction , schottky diode , metal , ohmic contact , optoelectronics , photovoltaic system , graphene , photocatalysis , nanotechnology , engineering physics , electrical engineering , metallurgy , physics , diode , chemistry , biochemistry , engineering , layer (electronics) , catalysis
n‐n Schottky, n‐n ohmic, and p‐n Schottky heterojunctions based on TiO 2 /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 TiO 2 , enabling new modalities of operation for energy systems.