dc.identifier.uri |
http://dx.doi.org/10.15488/652 |
|
dc.identifier.uri |
http://www.repo.uni-hannover.de/handle/123456789/676 |
|
dc.contributor.author |
Bhatnagar, Akash
|
|
dc.contributor.author |
Roy Chaudhuri, Ayan
|
|
dc.contributor.author |
Kim, Young Heon
|
|
dc.contributor.author |
Hesse, Dietrich
|
|
dc.contributor.author |
Alexe, Marin
|
|
dc.date.accessioned |
2016-11-03T12:40:19Z |
|
dc.date.available |
2016-11-03T12:40:19Z |
|
dc.date.issued |
2013 |
|
dc.identifier.citation |
Bhatnagar, A.; Roy Chaudhuri, Ayan; Heon, Kim Y.; Hesse, D.; Alexe, M.: Role of domain walls in the abnormal photovoltaic effect in BiFeO 3 . In: Nature Communications 4 (2013), 2835. DOI: http://dx.doi.org/10.1038/ncomms3835 |
|
dc.description.abstract |
Recently, the anomalous photovoltaic (PV) effect in BiFeO 3 (BFO) thin films, which resulted in open circuit voltages (V oc) considerably larger than the band gap of the material, has generated a revival of the entire field of photoferroelectrics. Here, via temperature-dependent PV studies, we prove that the bulk photovoltaic (BPV) effect, which has been studied in the past for many non-centrosymmetric materials, is at the origin of the anomalous PV effect in BFO films. Moreover, we show that irrespective of the measurement geometry, V oc as high as 50 V can be achieved by controlling the conductivity of domain walls (DW). We also show that photoconductivity of the DW is markedly higher than in the bulk of BFO. |
eng |
dc.description.sponsorship |
DFG/SFB/762 |
|
dc.description.sponsorship |
IMPRS (International Max Planck Research School) |
|
dc.description.sponsorship |
Alexander von Humboldt foundation |
|
dc.language.iso |
eng |
|
dc.publisher |
London : Nature Publishing Group |
|
dc.relation.ispartofseries |
Nature Communications 4 (2013) |
|
dc.rights |
CC BY-NC-ND 3.0 Unported |
|
dc.rights.uri |
http://creativecommons.org/licenses/by-nc-nd/3.0/ |
|
dc.subject |
bismuth |
eng |
dc.subject |
bismuth ferrite |
eng |
dc.subject |
unclassified drug |
eng |
dc.subject |
bismuth |
eng |
dc.subject |
conductivity |
eng |
dc.subject |
film |
eng |
dc.subject |
photovoltaic system |
eng |
dc.subject |
ab initio calculation |
eng |
dc.subject |
article |
eng |
dc.subject |
conductance |
eng |
dc.subject |
electric potential |
eng |
dc.subject |
film |
eng |
dc.subject |
geometry |
eng |
dc.subject |
photovoltaic effect |
eng |
dc.subject |
temperature dependence |
eng |
dc.subject.ddc |
500 | Naturwissenschaften
|
ger |
dc.title |
Role of domain walls in the abnormal photovoltaic effect in BiFeO 3 |
eng |
dc.type |
Article |
|
dc.type |
Text |
|
dc.relation.issn |
2041-1723 |
|
dc.relation.doi |
http://dx.doi.org/10.1038/ncomms3835 |
|
dc.bibliographicCitation.volume |
4 |
|
dc.bibliographicCitation.firstPage |
2835 |
|
dc.description.version |
publishedVersion |
|
tib.accessRights |
frei zug�nglich |
|