Structural and spectroscopic properties of Nd3+: Y 2Si2O7 phosphors

Murat Erdem*, Gönül Özen, Cumali Tav, Baldassare Di Bartolo

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

17 Citations (Scopus)


Phosphors of α-Y2Si2O7 doped with Nd3+ ions were prepared using the sol-gel technique. Nano-sized crystalline phosphor powders were obtained by annealing the dried gels at 960 °C. The crystallization properties of the phosphor powders were determined from their XRD patterns. The α-Y2Si2O7 phase was the only phase observed in all compositions. As the amount of amorphous SiO2 in the composition was increased, the crystalline sizes and the widths of the size distribution curves were found to decrease from 17.8 nm to 10.6 nm and from 15.6 nm to 12.2 nm, respectively. The spectroscopic properties of the powders were studied by measuring the luminescence and the decay patterns of the 4F3/24I 9/2 and 4F3/24I 11/2 transitions between 50 K and 310 K. No appreciable effect of the crystallite sizes on the average lifetime of the 4F3/2 level was observed at temperatures below 100 K. The effect of temperature, however, becomes relevant above 100 K as the size of α-Y 2Si2O7 nano-crystal becomes smaller.

Original languageEnglish
Pages (from-to)6029-6033
Number of pages5
JournalCeramics International
Issue number6
Publication statusPublished - Aug 2013
Externally publishedYes


This study was financially supported by the Science Institute of Marmara University with the project number FEN-C-DRP-090409-007.

FundersFunder number
Marmara ÜniversitesiFEN-C-DRP-090409-007


    • Life time
    • Nanophosphors
    • Sol-gel
    • Yittrium silicate


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