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Title: Synthesis and characterization of stable stoichiometric clathrates of silicon and germanium: Cs{sub 8}Na{sub 16}Si{sub 136} and Cs{sub 8}Na{sub 16}Ge{sub 136}

Abstract

The search for new and better thermoelectric materials has recently brought to light a somewhat forgotten class of compounds, the clathrates of group 14. This and some purely theoretical interest in these and similar structural types have instigated much research on their electronic, magnetic, spectral, and conducting properties. Furthermore, renewed interest in these systems was sparked by the recent discovery of superconductivity in a Na-Ba-Si compound with the clathrate-I structure. Last, the clathrates are a step closer to porous silicon and the valuable optical properties that come with it. All of this interest has led to the search for reliable and reproducible ways for the synthesis of such silicon and germanium clathrates in high yields and with defined stoichiometry.

Authors:
;  [1]
  1. Univ. of Notre Dame, IN (United States). Dept. of Chemistry and Biochemistry
Publication Date:
Sponsoring Org.:
Petroleum Research Fund (United States); National Science Foundation, Washington, DC (United States)
OSTI Identifier:
682062
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of the American Chemical Society; Journal Volume: 121; Journal Issue: 15; Other Information: PBD: 21 Apr 1999
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 30 DIRECT ENERGY CONVERSION; THERMOELECTRIC MATERIALS; CLATHRATES; CESIUM SILICIDES; SODIUM COMPOUNDS; GERMANIDES; SYNTHESIS; CRYSTAL STRUCTURE

Citation Formats

Bobev, S., and Sevov, S.C. Synthesis and characterization of stable stoichiometric clathrates of silicon and germanium: Cs{sub 8}Na{sub 16}Si{sub 136} and Cs{sub 8}Na{sub 16}Ge{sub 136}. United States: N. p., 1999. Web. doi:10.1021/ja9844175.
Bobev, S., & Sevov, S.C. Synthesis and characterization of stable stoichiometric clathrates of silicon and germanium: Cs{sub 8}Na{sub 16}Si{sub 136} and Cs{sub 8}Na{sub 16}Ge{sub 136}. United States. doi:10.1021/ja9844175.
Bobev, S., and Sevov, S.C. Wed . "Synthesis and characterization of stable stoichiometric clathrates of silicon and germanium: Cs{sub 8}Na{sub 16}Si{sub 136} and Cs{sub 8}Na{sub 16}Ge{sub 136}". United States. doi:10.1021/ja9844175.
@article{osti_682062,
title = {Synthesis and characterization of stable stoichiometric clathrates of silicon and germanium: Cs{sub 8}Na{sub 16}Si{sub 136} and Cs{sub 8}Na{sub 16}Ge{sub 136}},
author = {Bobev, S. and Sevov, S.C.},
abstractNote = {The search for new and better thermoelectric materials has recently brought to light a somewhat forgotten class of compounds, the clathrates of group 14. This and some purely theoretical interest in these and similar structural types have instigated much research on their electronic, magnetic, spectral, and conducting properties. Furthermore, renewed interest in these systems was sparked by the recent discovery of superconductivity in a Na-Ba-Si compound with the clathrate-I structure. Last, the clathrates are a step closer to porous silicon and the valuable optical properties that come with it. All of this interest has led to the search for reliable and reproducible ways for the synthesis of such silicon and germanium clathrates in high yields and with defined stoichiometry.},
doi = {10.1021/ja9844175},
journal = {Journal of the American Chemical Society},
number = 15,
volume = 121,
place = {United States},
year = {Wed Apr 21 00:00:00 EDT 1999},
month = {Wed Apr 21 00:00:00 EDT 1999}
}