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ChemInform Abstract: Encapsulation of Silicon Nanoclusters in Zeolite Y.

✍ Scribed by J. HE; Y. BA; C. I. RATCLIFFE; J. A. RIPMEESTER; D. D. KLUG; J. S. TSE; K. F. PRESTON

Publisher: John Wiley and Sons
Year: 2010
Weight: 36 KB
Volume: 30
Category: Article
ISSN: 0931-7597
DOI: 10.1002/chin.199903239

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✦ Synopsis

Encapsulation of Silicon Nanoclusters in Zeolite Y. -Luminescent Si clusters are synthesized by chemical vapor deposition of Si 2 H 6 into the α-cages of H 32 Na 24 Y zeolite. Every cage contains 38 H atoms. Subsequent heating of the entrapped disilane precursors leads to the formation of Si clusters which is completed at 550 • C. The average size of the resulting Si clusters is 12 ±2 Si atoms. They are stable against air and exhibit a room-temp. photoluminescence in the green-yellow region with a peak energy at ≈2.2 eV. -(HE,

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