Photovoltaic effects and its oxygen content dependence in BaTi O3-δ Si heterojunctions

Jie Xing, Kui Juan Jin, Huibin Lu, Meng He, Guozhen Liu, Jie Qiu, Guozhen Yang

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44 Scopus citations

Abstract

Three oxide heterojunctions made of BaTi O3-δ Si have been fabricated under various oxygen pressures by laser molecular beam epitaxy. They all exhibited nonlinear and rectifying I-V characteristics but with a large difference in the rectification behaviors. Their photoelectric properties and dependences on oxygen contents in BaTi O3-δ films have been experimentally studied. We found that the photovoltaic effects depended strongly on the oxygen contents of the BaTi O3-δ films. The possible mechanism was proposed based on the band structure of the p-n heterojunctions.

Original languageEnglish
Article number071113
JournalApplied Physics Letters
Volume92
Issue number7
DOIs
StatePublished - 2008
Externally publishedYes

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