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Discrete excitonic transitions in quantum-sized CdS particles

✍ Scribed by L. Katsikas; A. Eychmüller; M. Giersig; H. Weller

Publisher
Elsevier Science
Year
1990
Tongue
English
Weight
341 KB
Volume
172
Category
Article
ISSN
0009-2614

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✦ Synopsis

Five discrete excitor& transitions were observed in quantum dots, i.e. quantum-sized Cd& as a function of particle size. The experimentally determined energy levels of the excitonic states were compared to eigenvalues calculated from products of two particle-in-a-box s or p orbitals.

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Excitonic Recombination and Relaxation i
Excitonic Recombination and Relaxation in CdS Quantum Dots
✍ M. Dib; M. Chamarro; V. Voliotis; J. L. Fave; C. Guenaud; P. Roussignol; T. Gaco 📂 Article 📅 1999 🏛 John Wiley and Sons 🌐 English ⚖ 268 KB 👁 2 views

Size-selective spectroscopic techniques and a tight-binding calculation with restricted configuration interaction are used to study the recombination and the relaxation of excitons in CdS quantum dots. The optical absorption spectrum is calculated and is found to be close to the experiments. The ana