Title of article
Localization of the excitonic luminescence of ZnO nano-tetrapods
Author/Authors
M.N. Jung، نويسنده , , S.H. Park، نويسنده , , S.Y. Ha، نويسنده , , S.J. Oh، نويسنده , , Y.R. Cho، نويسنده , , J.S. Park، نويسنده , , I.H. Im، نويسنده , , B.H. Koo، نويسنده , , T. Yao، نويسنده , , J.H. Chang، نويسنده ,
Issue Information
دوهفته نامه با شماره پیاپی سال 2008
Pages
4
From page
2761
To page
2764
Abstract
We present the characterization of the luminescence properties of ZnO nano-tetrapods. Low temperature, power dependence, and temperature dependence of the ZnO nano-tetrapods were investigated. From the low-temperature photoluminescence (PL), strong surface exciton emission (SX, at 3.367 eV), two-electron satellite of donor-bound exciton emission (TES, at 3.315 eV), and donor–acceptor pair emission (DAP, at 3.226 eV) are observed. Temperature dependence of those emission lines shows complex features. Delocalization due to thermal activation was observed from all emission lines, which strongly indicates that evaluation of luminescence properties of nanostructures requires special care about the localization centers for excitons.
Keywords
ZnO tetrapod , Photoluminescence , UV emission , DAP
Journal title
Physica E Low-dimensional Systems and Nanostructures
Serial Year
2008
Journal title
Physica E Low-dimensional Systems and Nanostructures
Record number
1047442
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