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Formation Time of Negatively Charged Excitons in CdTe-Based Quantum Wells

✍ Scribed by P. Kossacki; V. Ciulin; M. Kutrowski; J.-D. Ganière; T. Wojtowicz; B. Deveaud

Publisher
John Wiley and Sons
Year
2002
Tongue
English
Weight
98 KB
Volume
229
Category
Article
ISSN
0370-1972

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✦ Synopsis

The formation dynamics of charged excitons is studied in CdTe-based quantum wells by picosecond time-resolved photoluminescence. The formation time is obtained by an analysis of temporal behavior of photoluminescence signal after excitation in resonance with either neutral or charged exciton. It is shown that the formation time varies strongly when changing the electron concentration. We also demonstrate that the localization of neutral excitons has strong impact on the formation time of charged exciton and is over two times longer when exciting the low energy side of neutral exciton line.

📜 SIMILAR VOLUMES

Negatively Charged Excitons in CdTe-Base
Negatively Charged Excitons in CdTe-Based Quantum Wells: A Time-Resolved Study
✍ V. Ciulin; P. Kossacki; S. Haacke; J.-D. Ganière; B. Deveaud; A. Esser; M. Kutro 📂 Article 📅 2001 🏛 John Wiley and Sons 🌐 English ⚖ 148 KB 👁 1 views

Using time-resolved photoluminescence, we have investigated the radiative behavior of neutral and negatively charged excitons in CdTe-based quantum wells. We find that the photoluminescence of negatively charged excitons can be well reproduced by a model of delocalized and thermalized three-particle