Effect of initial crystallization temperature and surface diffusion on formation of GaAs multiple concentric nanoring structures by droplet epitaxy

Wang Yi^{1, 2}, Guo Xiang^{1, 2, 3}, Wei Jiemin², Yang Chen^{1, 3, 4}, Luo Zijiang^{1, 4}, Wang Jihong¹, Ding Zhao^{1, 2, 3, †}

(a) Density of GaAs CNRs plotted as a function of initial crystallization temperature (T₀). The line represents exponential fit to the data on Eq. (1); (b) h_inner versus initial crystallization temperature; (c) r_Ga versus initial crystallization temperature.