Premium
Theory of the Anomalous Bulk Photovoltaic Effect in Ferroelectrics
Author(s) -
von Baltz R.
Publication year - 1978
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.2220890211
Subject(s) - anomalous photovoltaic effect , asymmetry , photovoltaic effect , polarization (electrochemistry) , condensed matter physics , impurity , sign (mathematics) , photovoltaic system , materials science , doping , ferroelectricity , ionization , physics , optoelectronics , ion , chemistry , quantum mechanics , electrical engineering , dielectric , engineering , mathematical analysis , mathematics
Abstract A model is presented for the bulk photovoltaic effect (BPVE) in ferroelectrics which is due to an asymmetry in the ionization cross‐section for polarized impurities. This asymmetry is related to a quantum‐mechanical interference effect and explains the dependence of the BPVE on frequency and polarization of light, and it gives reasons for a possible sign change of the current, as it is observed, e. g., in BaTiO 3 . Numerical results agree nearly perfectly with experimental data for Fe‐doped LiNbO 3 .