Issue 16, 2023

Strain-induced ordered Ge(Si) hut wires on patterned Si (001) substrates

Abstract

Ge/Si nanowires are predicted to be a promising platform for spin and even topological qubits. While for large-scale integration of these devices, nanowires with fully controlled positions and arrangements are a prerequisite. Here, we have reported ordered Ge hut wires by multilayer heteroepitaxy on patterned Si (001) substrates. Self-assembled GeSi hut wire arrays are orderly grown inside patterned trenches with post growth surface flatness. Such embedded GeSi wires induce tensile strain on the Si surface, which results in preferential nucleation of Ge nanostructures. Ordered Ge nano-dashes, disconnected wires and continuous wires are obtained correspondingly by tuning the growth conditions. These site-controlled Ge nanowires on a flattened surface lead to the ease of fabrication and large-scale integration of nanowire quantum devices.

Graphical abstract: Strain-induced ordered Ge(Si) hut wires on patterned Si (001) substrates

Article information

Article type
Paper
Submitted
23 Sep 2022
Accepted
15 Feb 2023
First published
21 Mar 2023

Nanoscale, 2023,15, 7311-7317

Strain-induced ordered Ge(Si) hut wires on patterned Si (001) substrates

M. Ming, F. Gao, J. Wang, J. Zhang, T. Wang, Y. Yao, H. Hu and J. Zhang, Nanoscale, 2023, 15, 7311 DOI: 10.1039/D2NR05238E

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements