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|Title:||Stimulated emission induced by exciton–exciton scattering in ZnO/ZnMgO multiquantum wells up to room temperature||Authors:||Sun, Handong
Tuan, N. T.
Tang, Z. K.
Wong, G. K. L.
|Keywords:||DRNTU::Science::Physics||Issue Date:||2000||Source:||Sun, H. D., Makino, T., Tuan, N. T., Segawa, Y., Tang, Z. K., Wong, G. K. L., et al. (2000). Stimulated emission induced by exciton–exciton scattering in ZnO/ZnMgO multiquantum wells up to room temperature. Applied Physics Letters., 77(26), 4250-4252.||Series/Report no.:||Applied Physics Letters.||Abstract:||The mechanism of ultraviolet stimulated emission was investigated in ZnO/ZnMgO multiquantum wells. Stimulated emission induced by exciton–exciton scattering occurred throughout a range of temperatures from 5 K to room temperature. At temperatures higher than 160 K, stimulated emission due to electron-hole plasma recombination was also observed with a higher excitation threshold than that of exciton–exciton scattering. The exciton binding energies of multiquantum wells were larger than that of bulk ZnO and increased with a decrease in the well widths. This enhancement of exciton binding energy is due to the quantum-confinement effect and is favorable for the stability of exciton states.||URI:||https://hdl.handle.net/10356/101294
|ISSN:||0003-6951||DOI:||10.1063/1.1333687||Rights:||Applied Physics Letters © copyright 2000 American Institute of Physics. The journal's website is located at http://apl.aip.org/.||Fulltext Permission:||open||Fulltext Availability:||With Fulltext|
|Appears in Collections:||SPMS Journal Articles|
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