Stability of CdS nanocrystals in glass


Hayes T., Lurio L., Pant J., Persans P., Yukselici H.

JOURNAL DE PHYSIQUE IV, cilt.7, ss.1101-1102, 1997 (SCI İndekslerine Giren Dergi) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 7
  • Basım Tarihi: 1997
  • Doi Numarası: 10.1051/jp4:19972147
  • Dergi Adı: JOURNAL DE PHYSIQUE IV
  • Sayfa Sayıları: ss.1101-1102

Özet

We have measured and analyzed optical absorption and x-ray absorption spectra of CdS nanocrystals Brown by solid-state reaction in a borosilicate glass, with average crystallite radii from 1.4 to 5 nm. The first (Cd-S) and second (Cd-Cd) neighbor distances are within 0.2% of the bulk values in all cases. We establish an upper bound for the interfacial tension of 0.15 N/m. Such low interface tension suggests that glass-embedded nanocrystals are inherently more stable than bare or capped nanocrystals of the same size.