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2-Dimensional Transition Metal Dichalcogenides with Tunable Direct Band Gaps: MoS2(1-x)Se2x Monolayers
被引:337
|作者:
Mann, John
[1
]
Ma, Quan
[1
]
Odenthal, Patrick M.
[1
]
Isarraraz, Miguel
[1
]
Le, Duy
[2
]
Preciado, Edwin
[1
]
Barroso, David
[1
]
Yamaguchi, Koichi
[1
]
Palacio, Gretel von Son
[1
]
Andrew Nguyen
[1
]
Tai Tran
[1
]
Wurch, Michelle
[1
]
Ariana Nguyen
[1
]
Klee, Velveth
[1
]
Bobek, Sarah
[1
]
Sun, Dezheng
[1
,3
,4
]
Heinz, Tony F.
[3
,4
]
Rahman, Talat S.
[2
]
Kawakami, Roland
[1
]
Bartels, Ludwig
[1
]
机构:
[1] Univ Calif Riverside, Riverside, CA 92521 USA
[2] Univ Cent Florida, Dept Phys, Orlando, FL 32816 USA
[3] Columbia Univ, Dept Phys, New York, NY USA
[4] Columbia Univ, Dept Elect Engn, New York, NY USA
基金:
美国国家科学基金会;
关键词:
molybdenum disulfide;
molybdenum diselenide;
transition metal dichalcogenides;
CVD;
alloys;
bandgap engineering;
atomically thin films;
MOS2 ATOMIC LAYERS;
LARGE-AREA;
VALLEY POLARIZATION;
GROWTH;
PHOTOLUMINESCENCE;
GRAPHENE;
FILMS;
D O I:
10.1002/adma.201304389
中图分类号:
O6 [化学];
学科分类号:
0703 ;
摘要:
MoS2(1-x) Se2x single-layer films are prepared using a mixture of organic selenium and sulfur precursors as well as a solid molybdenum source. The direct bandgaps are found to scale nearly linearly with composition in the range of 1.87 eV (pure single-layer MoS2) to 1.55 eV (pure single-layer MoSe2) permitting straightforward bandgap engineering. © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
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页码:1399 / 1404
页数:6
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