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Photodetection: Spatially Resolved Photodetection in Leaky Ferroelectric BiFeO 3 (Adv. Mater. 10/2012)
Author(s) -
Lee WonMo,
Sung Ji Ho,
Chu Kanghyun,
Moya Xavier,
Lee Donghun,
Kim CheolJoo,
Mathur Neil D.,
Cheong S.W.,
Yang C.H.,
Jo MoonHo
Publication year - 2012
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.201290053
Subject(s) - photodetection , ferroelectricity , materials science , photocurrent , polarization (electrochemistry) , condensed matter physics , optics , optoelectronics , photodetector , physics , chemistry , dielectric
On page OP49 , M.‐H. Jo and co‐workers describe a method of control over photocurrent detection by manipulating ferroelectric domain configurations. The magnitude is spectrally centered around charged domain walls that are associated with oxygen vacancy migration in BiFeO 3 , where potential gradients caused by spontaneous polarization yield asymmetric and nonlinear photocarrier dynamics.