Role of domain walls in the abnormal photovoltaic effect in BiFeO3

Bhatnagar, Akash; Roy Chaudhuri, Ayan; Heon Kim, Young; Hesse, Dietrich; Alexe, Marin

doi:10.1038/ncomms3835

Public

Role of domain walls in the abnormal photovoltaic effect in BiFeO3

Published in Nature Communications • Nov 27, 2013

Authors:

Akash Bhatnagar

Ayan Roy Chaudhuri

Young Heon Kim

Abstract

Recently, the anomalous photovoltaic (PV) effect in BiFeO3 (BFO) thin films, which resulted in open circuit voltages (Voc) 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 t...

Subject

Bismuth ferrite

Photovoltaic system

Materials science

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