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Size‐Dependent Periodically Twinned ZnSe Nanowires
Author(s) -
Li Q.,
Gong X.,
Wang C.,
Wang J.,
Ip K.,
Hark S.
Publication year - 2004
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.200306648
Subject(s) - nanowire , materials science , photoluminescence , crystal twinning , evaporation , condensed matter physics , nanotechnology , optoelectronics , composite material , microstructure , physics , thermodynamics
Cubic ZnSe nanowires with periodically alternating twins along the wire growth direction (see Figure) have been synthesized using thermal evaporation with a Au catalyst. The periodicity of the alternating twins has a linear dependence on the diameter of the nanowires. Sharp excitonic peaks dominating the low‐temperature photoluminescence spectrum of the nanowires reveal the high quality of their electronic structure despite the large unpassivated surface and interface associated with the twinned nanowire configuration.