open access

https://hdl.handle.net/2115/96063

Rolled-Up Membranes from GaAs/AlOx Core-Shell Nanowire Ensembles Through Natural Oxidation

英語

rolled up membrane

2025-01-03

Wiley-Blackwell

Advanced optical materials

13(1)

2401968

The formation of rolled-up cylindrical membranes stemming from the strain deformation-induced delamination of a film-like nanowires array composed of coalesced GaAs nanowires embedded in AlOx with a buried GaAs/AlAs core-shell structure is reported. The delamination of the nanowires array film is driven by natural oxidation resulting from prolongated exposure to ambient atmosphere. Investigation of the structural characteristics of the nanowires in the array reveals an analytical description of the oxidation mechanism leading to the formation of the rolled-up structures. The membrane can easily transfer by simply shaking off the surface membranes of the sample. The cylindrical membranes maintain the optical properties of the core GaAs nanowires surrounded by native oxide. The findings show the prospects for area-saving and transferable semiconductor devices with advanced nanoscale optical functions. Natural oxidation from prolonged ambient exposure drives the delamination of the nanowires array film, forming rolled-up structures. Structural investigation provides an analytical description of this oxidation mechanism. The membranes, maintaining the GaAs core's optical properties, can be transferred by shaking off the surface. The findings suggest the potential for compact, transferable semiconductor devices with advanced nanoscale optical functions.

学術雑誌論文

Accepted Manuscript

This is the peer reviewed version of the following article: H. Hashimoto, K. Minehisa, K. Nakama, K. Watanabe, K. Nagashima, T. Yanagida, F. Ishikawa, Rolled-Up Membranes from GaAs/AlOx Core-Shell Nanowire Ensembles Through Natural Oxidation. Adv. Optical Mater. 2024, 13, 2401968, which has been published in final form at https://doi.org/10.1002/adom.202401968. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions. This article may not be enhanced, enriched or otherwise transformed into a derivative work, without express permission from Wiley or by statutory rights under applicable legislation. Copyright notices must not be removed, obscured or modified. The article must be linked to Wiley’s version of record on Wiley Online Library and any embedding, framing or otherwise making available the article or pages thereof by third parties from platforms, services and websites other than Wiley Online Library must be prohibited.

2195-1071