Rolled-Up Membranes from GaAs/AlOx Core-Shell Nanowire Ensembles Through Natural Oxidation (Advanced Optical Materials 1/2025)

Abstract

Optically Functional Rolled-Up Nanowires

Natural oxidation from ambient exposure drives the delamination of the nanowire array film, resulting in the formation of rolled-up structures. These retain the GaAs core's optical properties and exhibit visible-wavelength emission from the surrounding oxides. The membranes are easily transferable by simple shaking. This demonstrates potential for compact, transferable semiconductor devices with nanoscale optical functionalities. More details can be found in article 2401968 by Hidetoshi Hashimoto, Fumitaro Ishikawa, and co-workers.