In:
Journal of Applied Physics, AIP Publishing, Vol. 88, No. 8 ( 2000-10-15), p. 4916-4918
Abstract:
Study by time-resolved photoluminescence shows that two classes of quantum structures coexist in a ZnSe/CdSe/ZnSe heterostructure in which the CdSe coverage is less than the critical thickness. Excitons from class-A structures dominate the emission spectrum and exhibit temperature-independent decay times, demonstrating quantum-dot-like properties. On the other hand, excitonic transitions from class-B structures are characterized by decay times that depend linearly on temperature, indicating two-dimensional features. There is a sharp transition from class-A to class-B excitons as the emission energy goes from higher to lower energies across the emission band.
Type of Medium:
Online Resource
ISSN:
0021-8979
,
1089-7550
Language:
English
Publisher:
AIP Publishing
Publication Date:
2000
detail.hit.zdb_id:
220641-9
detail.hit.zdb_id:
3112-4
detail.hit.zdb_id:
1476463-5
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