標題: Biexciton emission from sol-gel ZnMgO nanopowders
作者: Chia, C. H.
Lai, Y. J.
Hsu, W. L.
Han, T. C.
Chiou, J. W.
Hu, Y. M.
Lin, Y. C.
Fan, W. C.
Chou, W. C.
電子物理學系
Department of Electrophysics
關鍵字: biexcitons;binding energy;electron-hole recombination;magnesium compounds;nanoparticles;nonlinear optics;optical pumping;photoluminescence;sol-gel processing;wide band gap semiconductors;zinc compounds
公開日期: 10-五月-2010
摘要: We studied the power-dependent photoluminescence of Zn(1-x)Mg(x)O nanopowders grown by sol-gel method, at temperature T = 100 K. At moderate optical pumping intensity, a nonlinear emission band due to the radiative recombination of free biexcitons was detected. We found that the free biexciton binding energies of Zn(1-x)Mg(x)O nanopowder (0.01 <= x <= 0.05) are nearly constant (13.5 +/- 1.5 meV). (C) 2010 American Institute of Physics. [doi:10.1063/1.3428780]
URI: http://dx.doi.org/10.1063/1.3428780
http://hdl.handle.net/11536/5409
ISSN: 0003-6951
DOI: 10.1063/1.3428780
期刊: APPLIED PHYSICS LETTERS
Volume: 96
Issue: 19
結束頁: 
顯示於類別:期刊論文


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