title: Fast photovoltaic effects tuned by vicinal interface microstructure in manganite-based all-perovskite-oxide heterojunctions.
abstract: Interfacial microstructure tunable photovoltaic effects have been reported in heterojunctions of La(1-x)Ca(x)MnO(3) thin films and tilted or exact cut Nb-doped SrTiO(3) single crystal substrates under irradiation of UV pulsed laser. The photoresponse times of vicinal junctions and films were obviously faster than those of exact cut samples. The behaviors can be explained by the slope of the built-in electric field in the 10° tilted heterojunction and the interfacial terrace microstructure of La(1-x)Ca(x)MnO(3) films.
authors.affiliation: State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, China.
authors.forename: Zhi-qing
authors.initials: ZQ
authors.lastname: Lu
authors.forename: Hao
authors.initials: H
authors.lastname: Ni
authors.forename: Kun
authors.initials: K
authors.lastname: Zhao
authors.forename: Wen-xiu
authors.initials: WX
authors.lastname: Leng
authors.forename: Yu-Chau
authors.initials: YC
authors.lastname: Kong
authors.forename: Hong-Kuen
authors.initials: HK
authors.lastname: Wong