Radiative parameters of Eu3+ ions in CdSe nanocrystal containing silica matrices

✍ Scribed by Gijo Jose; Vinoy Thomas; Toney T. Fernandez; Amrutha K. Adiyodi; Cyriac Joseph; M.A. Ittyachen; N.V. Unnikrishnan

• Book ID: 103883542
• Publisher: Elsevier Science
• Year: 2005
• Tongue: English
• Weight: 233 KB
• Volume: 357
• Category: Article
• ISSN: 0921-4526
• DOI: 10.1016/j.physb.2004.11.075

✦ Synopsis

Optical absorption and emission spectra of Eu 3+ /CdSe nanocrystallites and Eu 3+ in sol-gel silica glass samples are being carried out. From the measured intensities of various absorption bands and applying thermal correction, the three Judd-Ofelt parameters O 2 ; O 4 and O 6 are evaluated for these glasses. From this theory, various radiative properties like transition probability A; branching ratio b; the radiative lifetime t R ; absorption cross-section s a and the emission crosssection s E for various levels of these glasses are determined.