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Tailoring Photovoltage Response at SrRuO 3 /SrTiO 3 Heterostructures
Author(s) -
Yukawa Ryu,
Yamamoto Susumu,
Akikubo Kazuma,
Takeuchi Kaori,
Ozawa Kenichi,
Kumigashira Hiroshi,
Matsuda Iwao
Publication year - 2016
Publication title -
advanced materials interfaces
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.671
H-Index - 65
ISSN - 2196-7350
DOI - 10.1002/admi.201600527
Subject(s) - heterojunction , surface photovoltage , materials science , semiconductor , oxide , photoemission spectroscopy , optoelectronics , nanotechnology , spectroscopy , engineering physics , x ray photoelectron spectroscopy , physics , quantum mechanics , nuclear magnetic resonance , metallurgy
The photovoltage and lifetime of the photo‐excited carriers at the SrTiO 3 surface drastically change with the SrRuO 3 overlayers, as element specifically tracked by time‐resolved core‐level photoemission spectroscopy. The results show that the optical responses of oxide semiconductor heterostructures are designed by the band alignment scheme and they are tailored by the film growth.