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Title
Japanese: 
English:Biexciton emission from ZnO/Zn0.74Mg0.26O multiquantum wells 
Author
Japanese: 孫 漢東, 牧野 哲征, 瀬川 勇三朗, 川崎 雅司, 大友 明, 田村 謙太郎, 鯉沼 秀臣.  
English: H. D. Sun, T. Makino, Y. Segawa, M. Kawasaki, A. Ohtomo, K. Tamura, H. Koinuma.  
Language English 
Journal/Book name
Japanese: 
English:Applied Physics Letters 
Volume, Number, Page Vol. 78    No. 22    pp. 3385-3387
Published date May 2001 
Publisher
Japanese: 
English: 
Conference name
Japanese: 
English: 
Conference site
Japanese: 
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File
Official URL <Go to ISI>://000168885000003
 
DOI https://doi.org/10.1063/1.1375830
Abstract Luminescence due to the radiative recombination of localized biexcitons has been observed at low temperature (5 K) in ZnO/Zn0.74Mg0.26O multiquantum wells grown by laser-molecular-beam epilaxy on a lattice-matched ScAlMgO4 substrate (0001). The emission components due to the recombination of localized excitons and biexcitons and due to the exciton-exciton scattering were verified by examining their relative energy positions and intensity dependence on excitation power density. The excitation threshold for biexciton emission was significantly lower than that for exciton-exciton scattering. The binding energy of biexcitons in multi-quantum wells is largely enhanced by quantum confinement effect.

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