Affordable Access

deepdyve-link
Publisher Website

Photoluminescence from Bi5(GaCl4)3 molecular crystal

Authors
  • Sun, Hong-Tao
  • Xu, Beibei
  • Yonezawa, Tetsu
  • Sakka, Yoshio
  • Shirahata, Naoto
  • Fujii, Minoru
  • Qiu, Jianrong
  • Gao, Hong
Type
Published Article
Publication Date
Sep 06, 2012
Submission Date
May 31, 2012
Identifiers
DOI: 10.1039/C2DT31167D
Source
arXiv
License
Yellow
External links

Abstract

Bi5(GaCl4)3 sample has been synthesized through the oxidation of Bi metal by gallium chloride (GaCl3) salt. Powder X-ray diffraction as well as micro-Raman scattering results revealed that, in addition to crystalline Bi5(GaCl4)3 in the product, amorphous phase containing [GaCl4]- and [Ga2Cl7]- units also exist. The thorough comparison of steady-state and time-resolved photoluminescent behaviors between Bi5(GaCl4)3 product and Bi5(AlCl4)3 crystal leads us to conclude that Bi53+ is the dominant emitter in the product, which gives rise to the ultrabroad emission ranging from 1 to 2.7 micrometer. Detailed quantum chemistry calculation helps us assign the observed excitations to some electronic transitions of Bi53+ polycation, especially at shorter wavelengths. It is believed that our work shown here not only is helpful to solve the confusions on the luminescent origin of bismuth in other material systems, but also serves to develop novel broadband tunable laser materials.

Report this publication

Statistics

Seen <100 times