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The Si nanowires (SiNWs) used in these studies were synthesized by vapor-liquid-solid (VLS) growth from Au catalyst particles using 10% SiH 4 in H2 as the silicon gas source, trimethylboron (TMB) as the p-type dopant, and phosphine (PH3) as the n-type dopant. The ratio of TMB or PH3 to SiH4 was varied from 0 to 10-2 to modulate the hole or electron carrier concentration in the SiNWs. Following growth,...
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