Stimuli-Responsive Phase Change Materials: Optical and Optoelectronic Applications |
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| Authors: | Irene Vassalini Ivano Alessandri Domenico de Ceglia |
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| Affiliation: | 1.INSTM, Research Unit of Brescia, Via Branze 38, 25123 Brescia, Italy;2.Department of Information Engineering, University of Brescia, Via Branze 38, 25123 Brescia, Italy;3.CNR-INO, Research Unit of Brescia, Via Branze 38, 25123 Brescia, Italy;4.Department of Information Engineering, University of Padova, Via Gradenigo 6/a, 35131 Padova, Italy |
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| Abstract: | Stimuli-responsive materials offer a large variety of possibilities in fabrication of solid- state devices. Phase change materials (PCMs) undergo rapid and drastic changes of their optical properties upon switching from one crystallographic phase to another one. This peculiarity makes PCMs ideal candidates for a number of applications including sensors, active displays, photonic volatile and non-volatile memories for information storage and computer science and optoelectronic devices. This review analyzes different examples of PCMs, in particular germanium–antimonium tellurides and vanadium dioxide (VO2) and their applications in the above-mentioned fields, with a detailed discussion on potential, limitations and challenges. |
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| Keywords: | phase change materials GST VO2 thin films metasurfaces active photonics displays optical switches memories |
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