Issue 9, 2018

Synthesis and spectroscopic characterization of alkali–metal intercalated ZrSe2

Abstract

We report on the synthesis and spectroscopic characterization of alkali metal intercalated ZrSe2 single crystals. ZrSe2 is produced by chemical vapour transport and then Li is intercalated. Intercalation is performed from the liquid phase (via butyllithium) and from the vapour phase. Raman spectroscopy of intercalated ZrSe2 reveals phonon energy shifts of the Raman active A1g and Eg phonon modes, the disappearance of two-phonon modes and new low wavenumber Raman modes. Angle-resolved photoemission spectroscopy is used to perform a mapping of the Fermi surface revealing an electron concentration of 4.7 × 1014 cm−2. We also perform vapour phase intercalation of K and Cs into ZrSe2 and observe similar changes in the Raman modes as for the Li case.

Graphical abstract: Synthesis and spectroscopic characterization of alkali–metal intercalated ZrSe2

Article information

Article type
Paper
Submitted
09 10 2017
Accepted
27 11 2017
First published
28 11 2017

Dalton Trans., 2018,47, 2986-2991

Synthesis and spectroscopic characterization of alkali–metal intercalated ZrSe2

K. Nikonov, N. Ehlen, B. Senkovskiy, N. Saigal, A. Fedorov, A. Nefedov, C. Wöll, G. Di Santo, L. Petaccia and A. Grüneis, Dalton Trans., 2018, 47, 2986 DOI: 10.1039/C7DT03756B

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