Nanostripe-Confined Catalyst Formation for Uniform Growth of Ultrathin Silicon Nanowires.

ABSTRACT: Uniform growth of ultrathin silicon nanowire (SiNW) channels is the key to accomplishing reliable integration of various SiNW-based electronics, but remains a formidable challenge for catalytic synthesis, largely due to the lack of uniform size control of the leading metallic droplets. In this work, we explored a nanostripe-confined approach to produce highly uniform indium (In) catalyst droplets that enabled the uniform growth of an orderly SiNW array via an in-plane solid-liquid-solid (IPSLS) guided growth directed by simple step edges. It was found that the size dispersion of the In droplets could be reduced substantially from Dcatpl = 20 ± 96 nm on a planar surface to only Dcatns = 88 ± 13 nm when the width of the In nanostripe was narrowed to Wstr= 100 nm, which could be qualitatively

SUBMITTER: Cheng Y 

PROVIDER: S-EPMC9824257 | biostudies-literature | 2022 Dec

REPOSITORIES: biostudies-literature