Twist-angle two-dimensional superlattices and their application in (opto)electronics

DOI: 10.1088/1674-4926/43/1/011001 Cite this Article

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2D twist system	Twist-angle	Band structure	Physical property	Ref.
N/A: Not available
	Non-magic-angle		Formation of DOS gap	[66, 67]
	Non-magic-angle		Formation of Moiré bandgap	[68]
Graphene	Magic-angle		Correlated insulating state	[43]
			Unconventional superconductivity	[44]
			Pomeranchuk effect	[50]
			Integer quantum Hall effect	[53]
			Josephson effect	[54, 55]
TMDs	No magic-angle		Atomic reconstruction	[69]
			Interlayer hybridization	[70–72]
			Correlated electronic state	[58, 59]
			Superconductivity	[62]
BP	90°		Orientation barrier	[73]
BP	90°		Rectification effect	[74]
h-BN	0.6°	N/A	Tunable ferroelectricity	[75]

Table 1. Primary 2D materials for twisting with their typical band structure and important physical properties.

2D twist system	Twist-angle	Optoelectronic		Electronic		Ref.
2D twist system	Twist-angle	Wavelength	Photoresponsivity	Rectification ratio	On/Off ratio	Ref.
N/A: Not available
Graphene	0.6°	432 μm	~ 80 mV/W	N/A	N/A	[79]
	1.81°	1200 nm	26 mA/W	N/A	N/A	[68]
	10°	633 nm/48°	2.2 V/W	N/A	N/A	[78]
	10°	633 nm	2.5 mA/W	N/A	N/A	[67]
	12°	532 nm/52°	1.6 V/W	N/A	N/A	[78]
	13°	532 nm	1 mA/W	N/A	N/A	[66]
MoS₂	30°	N/A	N/A	N/A	10⁸	[77]
MoSe₂/WSe₂	15°	365 nm	2 A/W	N/A	N/A	[98]
MoSe₂/WSe₂	60°	926 nm	N/A	N/A	N/A	[69]
BP	90°	532 nm	4.6 mA/W	115	N/A	[73]

Table 2. Collection of primary devices and their (opto)electrical property parameters.

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