Room-Temperature Giant Persistent Photoconductivity in SrTiO3/LaAlO3 Heterostructures (Articolo in rivista)

Type
Label
  • Room-Temperature Giant Persistent Photoconductivity in SrTiO3/LaAlO3 Heterostructures (Articolo in rivista) (literal)
Anno
  • 2012-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1021/nn203991q (literal)
Alternative label
  • Antonello Tebano 1, Emiliana Fabbri 2, Daniele Pergolesi 2, Giuseppe Balestrino 1, and Enrico Traversa 2 (2012)
    Room-Temperature Giant Persistent Photoconductivity in SrTiO3/LaAlO3 Heterostructures
    in ACS nano
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Antonello Tebano 1, Emiliana Fabbri 2, Daniele Pergolesi 2, Giuseppe Balestrino 1, and Enrico Traversa 2 (literal)
Pagina inizio
  • 1278 (literal)
Pagina fine
  • 1283 (literal)
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  • 6 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali
  • 6 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
  • 2 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • 1 CNR-SPIN and Dipartimento di Informatica Sistemi e Produzione, University of Roma Tor Vergata, Rome, Italy 2 International Research Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS), Tsukuba, Japan (literal)
Titolo
  • Room-Temperature Giant Persistent Photoconductivity in SrTiO3/LaAlO3 Heterostructures (literal)
Abstract
  • SrTiO3/LaAlO3 interfaces show an unprecedented photoconductivity effect that is persistent even at room temperature and giant as it gives rise to a conductivity increase of about 5 orders of magnitude at room temperature. The persistent photoconductivity effects play a paramount role in the still controversial intrinsic behavior of the SrTiO3/LaAlO3 interfaces, as even a limited exposure to visible light is able to strongly modify the electrical transport properties of the interface even above room temperature, while only an appropriate thermal treatment in a dark environment can completely suppress the persistent photoconductivity effect unveiling the intrinsic conduction mechanism of the interface. Moreover, our study demonstrates that the origin of the high conductivity, revealed at the STO/LAO interface at room temperature, is purely electronic. (literal)
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