Fig. 1
From: Plasma-Assisted Growth of Silicon Nanowires by Sn Catalyst: Step-by-Step Observation
a–d SEM images acquired at the same spot on one sample at different growth times. a 1 nm of Sn deposited on ZnO:Al. b After 2 min of H2 plasma treatment at 200°C and 2 min of annealing at 400°C. c After 10 s of NW growth at 400°C. d 40 s growth. e 3D illustration of coalescence of droplets during the first 10 s NW growth. f Evolution of the droplets density and mean diameter as a function of process time