Pregled bibliografske jedinice broj: 118571
Low-wave-number Raman scattering from CdSxSe1-x quantum dots embedded in a glass matrix
Low-wave-number Raman scattering from CdSxSe1-x quantum dots embedded in a glass matrix // Physical Review B, 67 (2003), 23; 235329-235338 (međunarodna recenzija, članak, znanstveni)
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Naslov
Low-wave-number Raman scattering from CdSxSe1-x quantum dots embedded in a glass matrix
Autori
Ivanda, Mile ; Babocsi, K. ; Dem, C. ; Schmitt, M. ; Montagna, M. ; Kiefer, W.
Izvornik
Physical Review B (1098-0121) 67
(2003), 23;
235329-235338
Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni
Ključne riječi
semiconductor-doped glasses; nanocrystals; photoluminescence; microcrystals; coefficient; electrons
Sažetak
The Raman scattering on acoustical phonons from CdSxSe1-x quantum dots in a glass matrix were investigated for in- and off-resonance conditions. By a comparison with a model calculation, the off-resonance scattering showed that the homogeneous broadening mainly contributes to the spectral width of the acoustical vibrational modes. The contribution of inhomogeneous broadening is 30% of the symmetric mode linewidth. For photodarkened samples measured under resonance conditions we showed by comparing the experimental results with the calculations that the ground levels for resonant particle excitation are the trap states filled with the carriers by a photodarkening process. The determined trap energies are in the range of 1-1.5 eV.
Izvorni jezik
Engleski
Znanstvena područja
Fizika
POVEZANOST RADA
Citiraj ovu publikaciju:
Časopis indeksira:
- Current Contents Connect (CCC)
- Web of Science Core Collection (WoSCC)
- SCI-EXP, SSCI i/ili A&HCI
- Scopus
Uključenost u ostale bibliografske baze podataka::
- Chemical Abstracts
- The INSPEC Science Abstracts series
