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Electric‐Induced Enhancement and Modulation of Upconversion Photoluminescence in Epitaxial BaTiO 3 :Yb/Er Thin Films
Author(s) -
Hao Jianhua,
Zhang Yang,
Wei Xianhua
Publication year - 2011
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201101374
Subject(s) - photoluminescence , photon upconversion , materials science , optoelectronics , epitaxy , electric field , thin film , doping , voltage , optics , nanotechnology , electrical engineering , physics , engineering , layer (electronics) , quantum mechanics
Upconversion control : Applying a relatively low bias voltage to an epitaxial lanthanide‐doped BaTiO 3 thin film results in a significant enhancement of the upconversion emission. Moreover, the photoluminescence (PL) intensity can be modulated with an ac electric field (see picture). This approach provides a real‐time and dynamic way to control photoluminescence.