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Laser-patterned 2D transparent amorphous phase

delete2025-07-01
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PRE
AI
E
Eunji Lim
H
Ha Heun Lee
S
Seung-Ho Hong
S
Seung-yeon Lee
W
Woohyun Cho
J
Jaeyoon Baik
H
Heejun Yang
H
Hyobin Yoo *
C
Ching‐Yu Chiang *
S
Suyeon Cho *
DOI:10.1016/j.apsusc.2025.162925delete
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摘要

摘要

En 中文
在所需区域制备原子级厚度的无序固体具有挑战性,因为削弱共价键需要高昂的能量成本。这里,我们演示了在二维过渡金属硫属化物合金上对透明非晶相进行低功率激光图案化。激光辐照诱导结晶2H-Mo0.92W0.08Te2(c-2H)中元素的选择性蒸发,导致其从结晶2H相逐步转变为MoWTe(a-MoWTe)非晶相,其间经历中间多晶1T'-Mo0.92W0.08Te2-x(p-1T')相。a-MoWTe具有Mo5+、W4+和W6+等多价阳离子,表明其局部化学环境与c-2H不同。阳离子的多价态可能通过改变配位数导致显著的晶格无序,从而引发从结晶相到非晶相的转变。我们激光图案化的二维非晶相为下一代纳电子学和光子学、能源存储/转换以及传感器提供了实际应用可能。
Keyword:
Amorphous phase
Transition metal dichalcogenide
Laser patterning

期刊

Applied Surface Science 封面图
Applied Surface Science
IF:
6.9
论文数:
6.2W
被引数:
19.4W

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S
Seoul Natl Univ
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4.1K
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P
Pohang Accelerator Lab PAL
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8
论文数: 10
被引数: 6
K
Korea Advanced Institute of Science and Technology
学者数:
3.7K
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被引数: 254
N
Natl Synchrotron Radiat Res Ctr
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139
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