MBE Growth of Bi2Te3 for Thermoelectrics

Yuxin Song; Yuxin Song; Sophie Charpentier; Attila Fülöp; Maria Ekström; Luca Galletti; Luca Galletti; Thilo Bauch; Floriana Lombardi; Shumin Wang; Shumin Wang

doi:10.1364/ACPC.2013.ATh4K.1

Asia Communications and Photonics Conference 2013
OSA Technical Digest (online) (Optica Publishing Group, 2013),
paper ATh4K.1
•https://doi.org/10.1364/ACPC.2013.ATh4K.1

MBE Growth of Bi₂Te₃ for Thermoelectrics

Yuxin Song, Sophie Charpentier, Attila Fülöp, Maria Ekström, Luca Galletti, Thilo Bauch, Floriana Lombardi, and Shumin Wang

Asia Communications and Photonics Conference 2013

Beijing China
12–15 November 2013
ISBN: 978-1-55752-989-3

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Thermoelectric Technologies (ATh4K)

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Y. Song, S. Charpentier, A. Fülöp, M. Ekström, L. Galletti, T. Bauch, F. Lombardi, and S. Wang, "MBE Growth of Bi2Te3 for Thermoelectrics," in Asia Communications and Photonics Conference 2013, OSA Technical Digest (online) (Optica Publishing Group, 2013), paper ATh4K.1.

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Abstract

Molecular beam epitaxy of Bi₂Te₃ on various substrates for thermoelectric applications is investigated. Growth conditions were optimized based on Si(111) substrates with two different growth techniques, co-deposition followed by crystallization and direct growth. Growth of Bi₂Te₃ on GaAs, GaN, et. al. substrates with different crystal directions and offcut angles were investigated. High quality Bi2Te3 thin films were achieved with very low carrier density and record high carrier mobility.

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