Theory of the Anomalous Bulk Photovoltaic Effect in Ferroelectrics | Zendy

von Baltz R. | Zendy

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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

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 .

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