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Selenium chains in ZSM-5 zeolite: Atomic structure and optical properties

A. SAITOH1,* , H. TAKEBE1, K. TANAKA2

Affiliation

  1. Materials and Science and Engineering, Graduate School of Science and Engineering, Ehime University, Matsuyama, 790-8577, Japan
  2. Department of Applied Physics, Graduate School of Engineering, Hokkaido University, Sapporo, 060-8628, Japan

Abstract

Structures and optical properties of selenium-loaded single-crystalline ZSM-5 (z-Se) have been studied. Obtained results are compared with those for bulk Se. Structural measurements using Raman-scattering and X-ray diffraction reveal that Se clusters in the ZSM-5 exist as single chains. Electron-spin resonance (ESR) measurements suggest that the chain has finite lengths of ~5 nm. Optical properties and photoinduced phenomena of z-Se are explored through ESR, absorption (α), and photoluminescence (PL) measurements upon exposure of visible light at room temperature..

Keywords

Chalcogen, nano-chain, Optical property, Zeolite.

Submitted at: June 2, 2011
Accepted at: Nov. 23, 2011

Citation

A. SAITOH, H. TAKEBE, K. TANAKA, Selenium chains in ZSM-5 zeolite: Atomic structure and optical properties, Journal of Optoelectronics and Advanced Materials Vol. 13, Iss. 11-12, pp. 1524-1530 (2011)