TITLE

Biexciton emission from ZnO/Zn[sub 0.74]Mg[sub 0.26]O multiquantum wells

AUTHOR(S)
Sun, H. D.; Makino, T.; Segawa, Y.; Kawasaki, M.; Ohtomo, A.; Tamura, K.; Koinuma, H.
PUB. DATE
May 2001
SOURCE
Applied Physics Letters;5/28/2001, Vol. 78 Issue 22, p3385
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Luminescence due to the radiative recombination of localized biexcitons has been observed at low temperature (5 K) in ZnO/Zn[sub 0.74]Mg[sub 0.26]O multiquantum wells grown by laser-molecular-beam epilaxy on a lattice-matched ScAlMgO[sub 4] 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. © 2001 American Institute of Physics.
ACCESSION #
4711261

 

Related Articles

Share

Read the Article

Courtesy of VIRGINIA BEACH PUBLIC LIBRARY AND SYSTEM

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics