Selective-area epitaxy of pure wurtzite InP nanowires: high quantum efficiency and room-temperature lasing.

Gao, Qian; Saxena, Dhruv; Wang, Fan; Fu, Lan; Mokkapati, Sudha; Guo, Yanan; Li, Li; Wong-Leung, Jennifer et al. · Nano Lett · 2014

basic_science · Level V

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Abstract

We report the growth of stacking-fault-free and taper-free wurtzite InP nanowires with diameters ranging from 80 to 600 nm using selective-area metal-organic vapor-phase epitaxy and experimentally determine a quantum efficiency of ∼50%, which is on par with InP epilayers. We also demonstrate room-temperature, photonic mode lasing from these nanowires. Their excellent structural and optical quality opens up new possibilities for both fundamental quantum optics and optoelectronic devices.