FERMI-LEVEL PINNING IN TRANSITION-METAL CHALCOGENIDES BY ELECTROCHEMICAL COPPER INTERCALATION IN POTASSIUM TETRATHIOCUPRATE(I)

Authors
SCHMALZ M VIOLA F SCHOLLHORN R SCHLOGL R
Citation
M. Schmalz et al., FERMI-LEVEL PINNING IN TRANSITION-METAL CHALCOGENIDES BY ELECTROCHEMICAL COPPER INTERCALATION IN POTASSIUM TETRATHIOCUPRATE(I), Materials research bulletin, 28(12), 1993, pp. 1311-1318
Citations number
5
Categorie Soggetti
Material Science
Journal title
Materials research bulletin → ACNP
ISSN journal
00255408
Volume
28
Issue
12
Year of publication
1993
Pages
1311 - 1318
Database
ISI
SICI code
0025-5408(1993)28:12<1311:FPITCB>2.0.ZU;2-Z
Abstract
Topotactic electrochemical intercalation of copper in metallic KCu4S3 leads to formation of semiconducting KCu5S3; this process results in a core level shift of all elements relative to the Fermi edge as observ ed by XPS (Fermi level pinning). In agreement with the metal-semicondu ctor transition a (reversible) hole annihilation in the anion p-band i s observed by XPS/UPS.