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.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 6016-6022 |
| Number of pages | 7 |
| Journal | Nanoscale |
| Volume | 11 |
| Issue number | 13 |
| DOIs | |
| State | Published - Jan 1 2019 |
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All Science Journal Classification (ASJC) codes
- Materials Science(all)
Cite this
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Stabilizing the commensurate charge-density wave in 1T-tantalum disulfide at higher temperatures via potassium intercalation. / Zhao, Rui; Grisafe, Benjamin; Ghosh, Ram Krishna; Wang, Ke; Datta, Suman; Robinson, Joshua Alexander.
In: Nanoscale, Vol. 11, No. 13, 01.01.2019, p. 6016-6022.Research output: Contribution to journal › Article
TY - JOUR
T1 - Stabilizing the commensurate charge-density wave in 1T-tantalum disulfide at higher temperatures via potassium intercalation
AU - Zhao, Rui
AU - Grisafe, Benjamin
AU - Ghosh, Ram Krishna
AU - Wang, Ke
AU - Datta, Suman
AU - Robinson, Joshua Alexander
PY - 2019/1/1
Y1 - 2019/1/1
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=85063972178&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85063972178&partnerID=8YFLogxK
U2 - 10.1039/C8NR09732A
DO - 10.1039/C8NR09732A
M3 - Article
C2 - 30869095
AN - SCOPUS:85063972178
VL - 11
SP - 6016
EP - 6022
JO - Nanoscale
JF - Nanoscale
SN - 2040-3364
IS - 13
ER -