期刊
APPLIED PHYSICS REVIEWS
卷 5, 期 4, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.5046559
关键词
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资金
- Australian Research Council Centre of Excellence in Future Low-Energy Electronics Technologies [CE170100039]
- Australian Government
- ONR [N00014-17-1-2818]
- ARO [W911NF-16-1-0227]
- DARPA [HR0011-15-2-0038]
- French National Research Agency (ANR) as a part of the Investissements d'Avenir program [ANR-10-LABX-0035]
Ferroelectrics are non-centrosymmetric crystalline materials that possess a spontaneous polarization that can be switched by an electric field. The electric-field-dependent optical response of these materials makes them important for optical devices, such as modulators or beam deflectors. In the inexorable drive to miniaturization, the concept of integrated thin film optical devices has led to the incorporation of ferroelectric thin films on single-crystal substrates. These structures have appealing electro-optic modulation characteristics, interesting strain-dependent bandgaps and refractive index, as well as promising possibilities for solar harvesting. Here, we review the work on epitaxial ferroelectric (FE) films for optical applications. We first show that FE thin film materials are attractive for integrated electro-optic modulators and then show that epitaxial strain can be used to enhance the FE and optical functionality of films. Next, we describe some of the photovoltaic functionality of FE thin film materials' systems and conclude the review by highlighting some thin-film devices that exploit the aforementioned optical effects. Published by AIP Publishing.
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