S. An

collaborators

2 papers

cond-mat.mtrl-sci2025

Orientation disparity in GaN/graphene/ $m$ -sapphire: control-based re-examination of thru-hole epitaxy

Su Young An, Hyunkyu Lee, Gunhoon Beak +8

The crystallographic orientation of films grown on 2D-masked substrates is often used to infer the pathway among remote, van der Waals, and thru-hole (pinhole-seeded) epitaxy. Howe…

cond-mat.mtrl-sci2025

Controlling GaN nucleation via O $_{2}$ -plasma-perforated graphene masks on c-plane sapphire

Su Young An, Chinkyo Kim

Atomically thin, perforated graphene on $c$ -plane sapphire functions as a nanoscale mask that enables GaN growth through thru-holes. We tune the perforated-area fraction $f_{p}$ by c…

Orientation disparity in GaN/graphene/m-sapphire: control-based re-examination of thru-hole epitaxy

Controlling GaN nucleation via O2​-plasma-perforated graphene masks on c-plane sapphire

Orientation disparity in GaN/graphene/ $m$ -sapphire: control-based re-examination of thru-hole epitaxy

Controlling GaN nucleation via O $_{2}$ -plasma-perforated graphene masks on c-plane sapphire