Jump to main content
Jump to site search

Issue 13, 2019
Previous Article Next Article

Stabilizing the commensurate charge-density wave in 1T-tantalum disulfide at higher temperatures via potassium intercalation

Author affiliations

Abstract

The 1T phase of tantalum disulfide (1T-TaS2) possesses a variety of charge-density-wave (CDW) orders, and as a result, it attracts an increasing amount of academic and technological interest. Researchers have devoted tremendous efforts towards understanding the impacts of doping, alloying, intercalation or other triggering agents on its charge density wave orders. In this work, we demonstrate that incorporating potassium chloride (KCl) during chemical vapor deposition (CVD) of TaS2 can control the phase (1T, 2H or metal nanowires) via the intercalation of potassium ions (K+) between TaS2 layers. Finally, we demonstrate that K+ not only impacts the structure during synthesis but also strongly impacts the CDW phase transition as a function of temperature, increasing the nearly commensurate (NCCDW) to commensurate (CCDW) transition to just below room temperature.

Graphical abstract: Stabilizing the commensurate charge-density wave in 1T-tantalum disulfide at higher temperatures via potassium intercalation

Back to tab navigation

Supplementary files

Article information


Submitted
03 Dec 2018
Accepted
04 Mar 2019
First published
04 Mar 2019

Nanoscale, 2019,11, 6016-6022
Article type
Paper
Author version available

Stabilizing the commensurate charge-density wave in 1T-tantalum disulfide at higher temperatures via potassium intercalation

R. Zhao, B. Grisafe, R. K. Ghosh, K. Wang, S. Datta and J. Robinson, Nanoscale, 2019, 11, 6016
DOI: 10.1039/C8NR09732A

Social activity

Search articles by author

Spotlight

Advertisements