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Effect of Internal Electric Fields on Charge Carrier Dynamics in a Ferroelectric Material for Solar Energy Conversion
Author(s) -
Morris Madeleine R.,
Pendlebury Stephanie R.,
Hong Jongin,
Dunn Steve,
Durrant James R.
Publication year - 2016
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201601238
Subject(s) - materials science , ferroelectricity , electric field , charge carrier , electric potential energy , dynamics (music) , energy transformation , charge (physics) , energy conversion efficiency , chemical physics , engineering physics , solar energy conversion , solar energy , condensed matter physics , optoelectronics , energy (signal processing) , dielectric , thermodynamics , electrical engineering , physics , quantum mechanics , acoustics , engineering
Spontaneous polarization is shown to enhance the lifetimes of photogenerated species in BaTiO 3 . This is attributed to polarization‐induced surface band bending acting as a thermal barrier to electron/hole recombination. The study indicates that the efficiencies of solar cells and solar fuels devices can be enhanced by the use of ferroelectric materials.