Tan, Y., Luo, F., Zhu, M., Xu, X., Ye, Y., Li, B., Wang, G., Luo, W., Zheng, X., Wu, N., Yu, Y., Qin, S., & Zhang, X. A. (2018). Controllable 2H-to-1T′ phase transition in few-layer MoTe2. Nanoscale, 10(42), 19964-19971. https://doi.org/10.1039/c8nr06115g
Tan, Yuan ; Luo, Fang ; Zhu, Mengjian et al. / Controllable 2H-to-1T′ phase transition in few-layer MoTe2. In: Nanoscale. 2018 ; Vol. 10, No. 42. pp. 19964-19971.
@article{e8c01d0ca3f2438d911228a598d6a3af,
title = "Controllable 2H-to-1T′ phase transition in few-layer MoTe2",
abstract = "Most two-dimensional (2D) transition metal dichalcogenides (TMDs) exhibit more than one structural phase, leading to a number of remarkable physics and potential device applications beyond graphene. Here, we demonstrated a feasible route to trigger 2H-to-1T′ phase transition in few-layer molybdenum ditelluride (MoTe2) by laser irradiation. The effects of laser power and irradiation duration were systematically studied in this study, revealing the accumulated heating effect as the main driving force for such a phase transition. By carefully adjusting laser power and irradiation time, we could control the structural phases of MoTe2 as 2H, 2H + 1T′, and 1T′. After thermal annealing at a rather low temperature, the laser-irradiated MoTe2 showed a completely suppressed 2H component and a more stabilized 1T′ phase, demonstrating that the microscopic origin of the irreversible 2H-to-1T′ phase transition is the formation of Te vacancies in MoTe2 due to laser local instantaneous heating. Our findings together with the unique properties of MoTe2 pave the way for high-performance nanoelectronics and optoelectronics based on 2D TMDs and their heterostructures.",
author = "Yuan Tan and Fang Luo and Mengjian Zhu and Xiaolong Xu and Yu Ye and Bing Li and Guang Wang and Wei Luo and Xiaoming Zheng and Nannan Wu and Yayun Yu and Shiqiao Qin and Zhang, {Xue Ao}",
note = "Publisher Copyright: {\textcopyright} 2018 The Royal Society of Chemistry.",
year = "2018",
month = nov,
day = "14",
doi = "10.1039/c8nr06115g",
language = "English",
volume = "10",
pages = "19964--19971",
journal = "Nanoscale",
issn = "2040-3364",
publisher = "Royal Society of Chemistry",
number = "42",
}
Tan, Y, Luo, F, Zhu, M, Xu, X, Ye, Y, Li, B, Wang, G, Luo, W, Zheng, X, Wu, N, Yu, Y, Qin, S & Zhang, XA 2018, 'Controllable 2H-to-1T′ phase transition in few-layer MoTe2', Nanoscale, vol. 10, no. 42, pp. 19964-19971. https://doi.org/10.1039/c8nr06115g
Controllable 2H-to-1T′ phase transition in few-layer MoTe2. / Tan, Yuan; Luo, Fang; Zhu, Mengjian et al.
In:
Nanoscale, Vol. 10, No. 42, 14.11.2018, p. 19964-19971.
Research output: Contribution to journal › Article › peer-review
TY - JOUR
T1 - Controllable 2H-to-1T′ phase transition in few-layer MoTe2
AU - Tan, Yuan
AU - Luo, Fang
AU - Zhu, Mengjian
AU - Xu, Xiaolong
AU - Ye, Yu
AU - Li, Bing
AU - Wang, Guang
AU - Luo, Wei
AU - Zheng, Xiaoming
AU - Wu, Nannan
AU - Yu, Yayun
AU - Qin, Shiqiao
AU - Zhang, Xue Ao
N1 - Publisher Copyright:
© 2018 The Royal Society of Chemistry.
PY - 2018/11/14
Y1 - 2018/11/14
N2 - Most two-dimensional (2D) transition metal dichalcogenides (TMDs) exhibit more than one structural phase, leading to a number of remarkable physics and potential device applications beyond graphene. Here, we demonstrated a feasible route to trigger 2H-to-1T′ phase transition in few-layer molybdenum ditelluride (MoTe2) by laser irradiation. The effects of laser power and irradiation duration were systematically studied in this study, revealing the accumulated heating effect as the main driving force for such a phase transition. By carefully adjusting laser power and irradiation time, we could control the structural phases of MoTe2 as 2H, 2H + 1T′, and 1T′. After thermal annealing at a rather low temperature, the laser-irradiated MoTe2 showed a completely suppressed 2H component and a more stabilized 1T′ phase, demonstrating that the microscopic origin of the irreversible 2H-to-1T′ phase transition is the formation of Te vacancies in MoTe2 due to laser local instantaneous heating. Our findings together with the unique properties of MoTe2 pave the way for high-performance nanoelectronics and optoelectronics based on 2D TMDs and their heterostructures.
AB - Most two-dimensional (2D) transition metal dichalcogenides (TMDs) exhibit more than one structural phase, leading to a number of remarkable physics and potential device applications beyond graphene. Here, we demonstrated a feasible route to trigger 2H-to-1T′ phase transition in few-layer molybdenum ditelluride (MoTe2) by laser irradiation. The effects of laser power and irradiation duration were systematically studied in this study, revealing the accumulated heating effect as the main driving force for such a phase transition. By carefully adjusting laser power and irradiation time, we could control the structural phases of MoTe2 as 2H, 2H + 1T′, and 1T′. After thermal annealing at a rather low temperature, the laser-irradiated MoTe2 showed a completely suppressed 2H component and a more stabilized 1T′ phase, demonstrating that the microscopic origin of the irreversible 2H-to-1T′ phase transition is the formation of Te vacancies in MoTe2 due to laser local instantaneous heating. Our findings together with the unique properties of MoTe2 pave the way for high-performance nanoelectronics and optoelectronics based on 2D TMDs and their heterostructures.
UR - http://www.scopus.com/inward/record.url?scp=85056138824&partnerID=8YFLogxK
U2 - 10.1039/c8nr06115g
DO - 10.1039/c8nr06115g
M3 - Article
C2 - 30349910
AN - SCOPUS:85056138824
SN - 2040-3364
VL - 10
SP - 19964
EP - 19971
JO - Nanoscale
JF - Nanoscale
IS - 42
ER -
Tan Y, Luo F, Zhu M, Xu X, Ye Y, Li B et al. Controllable 2H-to-1T′ phase transition in few-layer MoTe2. Nanoscale. 2018 Nov 14;10(42):19964-19971. doi: 10.1039/c8nr06115g
