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Optical properties of single ZnO nanowires
Author(s) -
Wischmeier L.,
Bekeny C.,
Voss T.,
Börner S.,
Schade W.
Publication year - 2006
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.200564647
Subject(s) - nanowire , photoluminescence , bohr radius , materials science , exciton , radius , excitation , resonator , optoelectronics , condensed matter physics , nanotechnology , quantum dot , physics , computer security , quantum mechanics , computer science
The optical properties of single ZnO nanowires with diameters <200 nm are analyzed. A comparison of the photoluminescence properties of the as‐grown ensemble and of an individual nanowire is given. The temperature dependence of the individual nanowire photoluminescence shows the same behavior as that of bulk material due to the wire diameter being very large compared to the exciton Bohr radius of ZnO. Furthermore, high excitation‐density measurements performed on an individual nanowire are presented in which a sharp line is observed resulting from resonator effects inside the wire. (© 2006 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)