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
✦ LIBER ✦
Single-peak excitonic emission of CdSe ultra-thin quantum wells finished with fractional monolayers
✍ Scribed by Adrián Alfaro-Martínez; Isaac Hernández-Calderón
- Publisher
- Elsevier Science
- Year
- 2008
- Tongue
- English
- Weight
- 753 KB
- Volume
- 39
- Category
- Article
- ISSN
- 0026-2692
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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