Optical study of electron and acoustic phonon confinement in ultrathin-body germanium-on-insulator nanolayers-Reference-Cited by-同舟云学术

Optical study of electron and acoustic phonon confinement in ultrathin-body germanium-on-insulator nanolayers

Published:2021 Issue: Volume: Page:
ISSN:2040-3364
Container-title:Nanoscale
language:en
Short-container-title:Nanoscale

Author:

Poborchii Vladimir¹²³⁴^ORCID,Groenen Jesse⁵⁶⁷⁸⁹,Geshev Pavel I.¹⁰¹¹¹²,Hattori Junichi¹²³⁴,Chang Wen Hsin¹²³⁴,Ishii Hiroyuki¹²³⁴,Irisawa Toshifumi¹²³⁴,Maeda Tatsuro¹²³⁴

Affiliation:

1. Nanoelectronics Research Institute

2. AIST

3. Tsukuba 305-8565

4. Japan

5. CEMES

6. Université de Toulouse

7. CNRS

8. Toulouse

9. France

10. Institute of Thermophysics of the Russian Academy of Sciences

11. Novosibirsk 630090

12. Russia

Abstract

Ge-on-insulator (GeOI) acoustic phonon frequencies and E₁ electron band gap vs. GeOI thickness (T) show agreement with confinement theories at T > 5 nm and disagree at T < 5 nm. Al₂O₃ coating improves agreement at T < 5 nm due to interface disorder reduction.

Publisher

Royal Society of Chemistry (RSC)

Subject

General Materials Science

Link

http://pubs.rsc.org/en/content/articlepdf/2021/NR/D1NR01355F

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