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Helical gallium nitride nanowires were synthesized by chemical vapor deposition using a Pt catalyst. The prepared helical GaN nanowires with a single-crystalline hexagonal wurtzite structure have a coil diameter of 150–280 nm and lengths of up to tens of micrometers. The helical GaN nanowires have six equivalent 〈0 $$ \bar{1} $$ 1 ¯ 11〉 growth directions along the [0001] axis. Field emission...
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