molecular beam epitaxy Burton-Cabrera-Frank model 1 Burton-cabrerum-frank model 1 Growth parameters 1 II-VI semiconductors 1 Molecular beam epitaxy 1 Molecular beams 1 Molecular-beam epitaxy 1 Nanowires 1 Selenium compounds 1 Semiconductor nanowire 1 Short diffusion lengths 1 Stage of growth 1 Step 1 Wide band gap semiconductors 1 ZnSe Nanowires 1 cation stoichiometry 1 electron microscopy 1 excited states 1 infinite layer 1 nanowires 1 nickelate film 1 optical coherence tomography 1 quantum dots 1 semiconductors 1 steps 1 superconductivity 1 superluminescent light-emitting diodes 1