Photostriction actuation of silicon-germanium bilayer cantilevers

V. Chenniappan, G. A. Umana-Membreno, K.K.M.B.D. Silva, M. Martyniuk, A. Keating, J. M. Dell, L. Faraone

Research output: Contribution to journalArticle

Abstract

This work presents a study of photostriction-based optical actuation in bilayer cantilevers made of silicon and germanium thin-films and follows previous work in this area on silicon cantilevers. This experimental and theoretical study examines the role of the silicon-germanium heterojunction in optical actuation. It is shown that the germanium layer dominates the mechanical response of the device, which can be exploited to achieve enhanced optical actuation in cantilevers.

Original languageEnglish
Article number125106
Number of pages8
JournalJournal of Applied Physics
Volume125
Issue number12
DOIs
Publication statusPublished - 28 Mar 2019

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actuation
germanium
silicon
heterojunctions
thin films

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Photostriction actuation of silicon-germanium bilayer cantilevers. / Chenniappan, V.; Umana-Membreno, G. A.; Silva, K.K.M.B.D.; Martyniuk, M.; Keating, A.; Dell, J. M.; Faraone, L.

In: Journal of Applied Physics, Vol. 125, No. 12, 125106, 28.03.2019.

Research output: Contribution to journalArticle

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AU - Umana-Membreno, G. A.

AU - Silva, K.K.M.B.D.

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AU - Keating, A.

AU - Dell, J. M.

AU - Faraone, L.

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