We present a study of the photoluminescence of a subnanometric three monolayers CdSe ultra-thin quantum well (UTQW), grown by atomic layer epitaxy (ALE), as a function of temperature. The sample exhibited quite intense green excitonic emission w2.40 eV at 14 K and w2.34 eV at room temperature, still
✦ LIBER ✦
Fine tuning of the emission of ultra-thin quantum wells of CdSe and CdTe by modification of the growth temperature
✍ Scribed by I. Hernández-Calderón; J.C. Salcedo-Reyes; A. Alfaro-Martínez; M. García-Rocha
- Publisher
- Elsevier Science
- Year
- 2005
- Tongue
- English
- Weight
- 106 KB
- Volume
- 36
- Category
- Article
- ISSN
- 0026-2692
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Photo-pumped lasing properties have been investigated in a CdSe/ZnSe/ZnSSE single quantum wells (SQWs) with the well-layer thickness (L W ) of 1, 2 and 3 monolayer (ML). At 20 K, the laser threshold for the SQW with L W = 1 ML was the lowest in spite of the smallest active layer thickness. The carri