Absorption and Raman spectra of Se8-ring clusters in zeolite 5A

Z. Lin*, Z. Wang, W. Chen, L. Lin, G. Li, Z. Liu, H. Han, Z. Wang

*Corresponding author for this work

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21 Citations (Scopus)


Samples with different weight ratio of Se to zeolite 5A (Se composition) have been prepared by loading Se into the cages of zeolite 5A and the measurements of the absorption and Raman spectra have been carried out for the prepared samples. The measured absorption edges of the samples are close and blue shifted to the value for monoclinic Se containing Se8-ring, suggesting the formation of Se8-ring clusters † in the cages. The continuous and broadening features of the absorption spectra are interpreted by the strong electron-phonon coupling in Se8-ring clusters. The sample with high Se composition has a red shift of the absorption band edge relative to the samples with less Se composition. It is tentatively attributed to the reason that with different Se composition, single Se8-ring clusters and double Se8-ring clusters are formed in the cages of zeolite 5A. A single broad band at about 262 cm-1 is observed in the Raman spectra, that gives the further support of the formation of Se8-ring clusters.

Original languageEnglish
Pages (from-to)841-843
Number of pages3
JournalSolid State Communications
Issue number12
Publication statusPublished - Dec 1996
Externally publishedYes


  • A. Nanostructures
  • B. Nanofabrications
  • D. Electron-phonon interactions
  • D. Optical properties


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