Table 1.

Comparison between different NW growth methods including low pressure VLS (LP VLS), high pressure VLS (HP VLS), SLS, and electrochemical.

Method	Diameter Range	Crystallinity	Doping	Yield	Scalability	Homogeneity	Catalyst	Freestanding
LP VLS	>30 nm	Monocrystalline	Highly controlled	Medium	Good	Generally dispersed	Yes	No
HP VLS	<30 nm	Polycrystalline	Controlled	High	Very good	Homogeneous	Yes	Yes
SLS	Between 20 and 30 nm	Monocrystalline	Controlled	Medium	Good	Dispersed	Yes	No
Electrochemical	Limited by template	Polycrystalline	Controlled	High	Good	Highly homogeneous	Yes	No