G ponts) For silicon nanowire growth by the vapor-liquid-solid (VLS), when Au li

Question

G ponts) For silicon nanowire growth by the vapor-liquid-solid (VLS), when Au liquid catalyst droplet size is 20mm what is diameter of silicon nanowires? (D ( . 25mmm 15mm ·20mm . 10nm For silcon nanowire growth by the vapor-iquid-solid (VLS), what limit minimum diameter 3 points) typical 5mm) o f silicon nanowires, there are two correct answer, chose two correct answers? A low supersaturatn n the vapor phase promotes the lateral growth on the side surface of nanowTeS supersaturation in the vapor phase initiate secondary nucleation at the surfice of nanowires .A ow supersaturation in the vapor phase intiate secondary nucleation at the surface of nanowires. . A high supersaturation in the vapor phase promotes the lateral growth on the side surfice of nanowres

Explanation / Answer

l) For a nanowrire, Diameter of silicon nanowire is same as size of catalyst droplet. Hence correct option is 20nm.

m) Correct options are: second and forth

•A high supersaturation in the vapor phase initiate secondary nucleation at surface of nanowires.

•A high supersaturation in the vapor phase may promote the lateral growth on the side surface of nanowires.

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