✦ LIBER ✦
Irreversible photochemical spectral hole burning in quantum-sized CdS nanocrystals embedded in a polymeric film
✍ Scribed by M.V. Artemyev; S.V. Gaponenko; I.N. Germanenko; A.M. Kapitonov
- Publisher
- Elsevier Science
- Year
- 1995
- Tongue
- English
- Weight
- 401 KB
- Volume
- 243
- Category
- Article
- ISSN
- 0009-2614
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✦ Synopsis
The effect of permanent hole burning is studied in the absorption spectra of quantum-sized CdS nanocrystals embedded in a polymeric film. The prolonged UV irradiation of CdS particles with mean diameter of about 3 nm and wide size distribution results in the formation of well-resolved dips with full-width of about 100-120 meV at room temperature. The selected photoexcitation of appropriate QS CdS nanocrystals is followed by their ionization and further irreversible oxidation of CdS phase by holes h ÷.