Photoinduced Metal-to-Insulator Transitions in 2D Moiré Devices

Yiliu Li; Esteban Rojas-Gatjens; Yinjie Guo; Birui Yang; Dihao Sun; Luke Holtzman; Juseung Oh; Katayun Barmak; Cory R. Dean; James C. Hone; Nathaniel Gabor; Eric A. Arsenault; Xiaoyang Zhu

doi:10.1103/mt2s-jkbl

Paper details

Research paper

Experimental Characterization

Photoinduced Metal-to-Insulator Transitions in 2D Moiré Devices

Yiliu Li, Esteban Rojas-Gatjens, Yinjie Guo, Birui Yang et al.

2025·10.1103/mt2s-jkbl·arXiv:2510.21005

Samples

Each sample groups how it was prepared, characterized, and measured. Click a card to expand.

Dual-gated WS₂/WSe₂ moiré heterobilayer device encapsulated by hBN and contacted by few-layer graphite top and bottom gates.

2 characterizations2 properties2 figures

ExperimentalWS₂Studied MaterialWSe₂Studied MaterialCCapping Or ContactBNSubstrate / DielectricCCapping Or ContactBNSubstrate / Dielectric

Dual-gated WSe₂/WSe₂ moiré homobilayer device encapsulated by hBN and contacted by few-layer graphite top and bottom gates.

1 characterization1 property2 figures

ExperimentalWSe₂Studied MaterialWSe₂Studied MaterialCCapping Or ContactBNSubstrate / Dielectric

Materials

WS₂

Studied Material

studied material

WSe₂

Studied Material

studied material

graphite

Why these are connected

Related documents with shared materials, methods, properties, or citations.

Photoinduced Metal-to-Insulator Transitions in 2D Moiré Devices | Matter42 Literature

Characterization

PLExperimental

Conditions

gate voltageVg

measurement contextsteady-state photoluminescence as a function of gate voltage

excitation energy eV2.33

excitation power density42 nW/µm²

Figure References

Figure 1

Dual-gated WS₂/WSe₂ moiré heterobilayer device encapsulated WS₂ WSe₂

UV-Vis

UV-VisExperimental

Conditions

delay ps-5,600,2500000

pump rep rate kHz400

probe rep rate kHz400

measurement contexttransient reflectance probe of WSe₂ moiré exciton

UV-Vis

UV-VisExperimental

Conditions

delay ps-5,600,2500000

pump rep rate kHz400

probe rep rate kHz400

measurement contexttransient reflectance probe of WSe₂ moiré exciton in WSe₂/WSe₂ device

DrExperimental

Conditions

provenancedeterministic_figure_injection

digitization statusok

Figure References

Figure 1

Spectrum Data

DrExperimental

Conditions

provenancedeterministic_figure_injection

digitization statusok

Figure References

Figure S10

Spectrum Data

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Conditions

provenancedeterministic_figure_injection

digitization statusok,partial

Figure References

Figure S12

Spectrum Data

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provenancedeterministic_figure_injection

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Figure S13

Spectrum Data

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provenancedeterministic_figure_injection

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Figure S14

Spectrum Data

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provenancedeterministic_figure_injection

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Figure References

Figure S15

Spectrum Data

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provenancedeterministic_figure_injection

digitization statusok

Figure References

Figure S5

Spectrum Data

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provenancedeterministic_figure_injection

digitization statusok

Figure References

Figure S6

Spectrum Data

DrExperimental

Conditions

provenancedeterministic_figure_injection

digitization statusok

Figure References

Figure S7

Spectrum Data

DrExperimental

Conditions

provenancedeterministic_figure_injection

digitization statusok

Figure References

Figure S8

Spectrum Data

DrExperimental

Conditions

provenancedeterministic_figure_injection

digitization statusok

Figure References

Figure S9

Spectrum Data

Properties

Type	Label	Value	Material	Sample	Condition	Source
Twist Angle	WS₂/WSe₂ heterobilayer	60deg	WS₂ WSe₂	Dual-gated WS₂/WSe₂ moiré heterobilayer device encapsulated		—
Moiré Lattice Constant	aM	8nm	WS₂ WSe₂	Dual-gated WS₂/WSe₂ moiré heterobilayer device encapsulated		—
Twist Angle	WSe₂/WSe₂ homobilayer	58.1deg	WSe₂	Dual-gated WSe₂/WSe₂ moiré homobilayer device encapsulated b		—
PL Peak	regex-detected PL peak	532nm	—	—	—	—

Characterization

PLExperimental

Conditions

gate voltageVg

measurement contextsteady-state photoluminescence as a function of gate voltage

excitation energy eV2.33

excitation power density42 nW/µm²

Figure References

Figure 1

Dual-gated WS₂/WSe₂ moiré heterobilayer device encapsulated WS₂ WSe₂

UV-Vis

UV-VisExperimental

Conditions

delay ps-5,600,2500000

pump rep rate kHz400

probe rep rate kHz400

measurement contexttransient reflectance probe of WSe₂ moiré exciton

UV-Vis

UV-VisExperimental

Conditions

delay ps-5,600,2500000

pump rep rate kHz400

probe rep rate kHz400

measurement contexttransient reflectance probe of WSe₂ moiré exciton in WSe₂/WSe₂ device

DrExperimental

Conditions

provenancedeterministic_figure_injection

digitization statusok

Figure References

Figure 1

Spectrum Data

DrExperimental

Conditions

provenancedeterministic_figure_injection

digitization statusok

Figure References

Figure S10

Spectrum Data

DrExperimental

Conditions

provenancedeterministic_figure_injection

digitization statusok,partial

Figure References

Figure S12

Spectrum Data

DrExperimental

Conditions

provenancedeterministic_figure_injection

digitization statusok

Figure References

Figure S13

Spectrum Data

DrExperimental

Conditions

provenancedeterministic_figure_injection

digitization statusok

Figure References

Figure S14

Spectrum Data

DrExperimental

Conditions

provenancedeterministic_figure_injection

digitization statusok

Figure References

Figure S15

Spectrum Data

DrExperimental

Conditions

provenancedeterministic_figure_injection

digitization statusok

Figure References

Figure S5

Spectrum Data

DrExperimental

Conditions

provenancedeterministic_figure_injection

digitization statusok

Figure References

Figure S6

Spectrum Data

DrExperimental

Conditions

provenancedeterministic_figure_injection

digitization statusok

Figure References

Figure S7

Spectrum Data

DrExperimental

Conditions

provenancedeterministic_figure_injection

digitization statusok

Figure References

Figure S8

Spectrum Data

DrExperimental

Conditions

provenancedeterministic_figure_injection

digitization statusok

Figure References

Figure S9

Spectrum Data

Properties

Type	Label	Value	Material	Sample	Condition	Source
Twist Angle	WS₂/WSe₂ heterobilayer	60deg	WS₂ WSe₂	Dual-gated WS₂/WSe₂ moiré heterobilayer device encapsulated		—
Moiré Lattice Constant	aM	8nm	WS₂ WSe₂	Dual-gated WS₂/WSe₂ moiré heterobilayer device encapsulated		—
Twist Angle	WSe₂/WSe₂ homobilayer	58.1deg	WSe₂	Dual-gated WSe₂/WSe₂ moiré homobilayer device encapsulated b		—
PL Peak	regex-detected PL peak	532nm	—	—	—	—

Characterization

PLExperimental

Conditions

gate voltageVg

measurement contextsteady-state photoluminescence as a function of gate voltage

excitation energy eV2.33

excitation power density42 nW/µm²

Figure References

Figure 1

Dual-gated WS₂/WSe₂ moiré heterobilayer device encapsulated WS₂ WSe₂

UV-Vis

UV-VisExperimental

Conditions

delay ps-5,600,2500000

pump rep rate kHz400

probe rep rate kHz400

measurement contexttransient reflectance probe of WSe₂ moiré exciton

UV-Vis

UV-VisExperimental

Conditions

delay ps-5,600,2500000

pump rep rate kHz400

probe rep rate kHz400

measurement contexttransient reflectance probe of WSe₂ moiré exciton in WSe₂/WSe₂ device

DrExperimental

Conditions

provenancedeterministic_figure_injection

digitization statusok

Figure References

Figure 1

Spectrum Data

DrExperimental

Conditions

provenancedeterministic_figure_injection

digitization statusok

Figure References

Figure S10

Spectrum Data

DrExperimental

Conditions

provenancedeterministic_figure_injection

digitization statusok,partial

Figure References

Figure S12

Spectrum Data

DrExperimental

Conditions

provenancedeterministic_figure_injection

digitization statusok

Figure References

Figure S13

Spectrum Data

DrExperimental

Conditions

provenancedeterministic_figure_injection

digitization statusok

Figure References

Figure S14

Spectrum Data

DrExperimental

Conditions

provenancedeterministic_figure_injection

digitization statusok

Figure References

Figure S15

Spectrum Data

DrExperimental

Conditions

provenancedeterministic_figure_injection

digitization statusok

Figure References

Figure S5

Spectrum Data

DrExperimental

Conditions

provenancedeterministic_figure_injection

digitization statusok

Figure References

Figure S6

Spectrum Data

DrExperimental

Conditions

provenancedeterministic_figure_injection

digitization statusok

Figure References

Figure S7

Spectrum Data

DrExperimental

Conditions

provenancedeterministic_figure_injection

digitization statusok

Figure References

Figure S8

Spectrum Data

DrExperimental

Conditions

provenancedeterministic_figure_injection

digitization statusok

Figure References

Figure S9

Spectrum Data

Properties

Type	Label	Value	Material	Sample	Condition	Source
Twist Angle	WS₂/WSe₂ heterobilayer	60deg	WS₂ WSe₂	Dual-gated WS₂/WSe₂ moiré heterobilayer device encapsulated		—
Moiré Lattice Constant	aM	8nm	WS₂ WSe₂	Dual-gated WS₂/WSe₂ moiré heterobilayer device encapsulated		—
Twist Angle	WSe₂/WSe₂ homobilayer	58.1deg	WSe₂	Dual-gated WSe₂/WSe₂ moiré homobilayer device encapsulated b		—
PL Peak	regex-detected PL peak	532nm	—	—	—	—

Characterization

PLExperimental

Conditions

gate voltageVg

measurement contextsteady-state photoluminescence as a function of gate voltage

excitation energy eV2.33

excitation power density42 nW/µm²

Figure References

Figure 1

Dual-gated WS₂/WSe₂ moiré heterobilayer device encapsulated WS₂ WSe₂

UV-Vis

UV-VisExperimental

Conditions

delay ps-5,600,2500000

pump rep rate kHz400

probe rep rate kHz400

measurement contexttransient reflectance probe of WSe₂ moiré exciton

UV-Vis

UV-VisExperimental

Conditions

delay ps-5,600,2500000

pump rep rate kHz400

probe rep rate kHz400

measurement contexttransient reflectance probe of WSe₂ moiré exciton in WSe₂/WSe₂ device

DrExperimental

Conditions

provenancedeterministic_figure_injection

digitization statusok

Figure References

Figure 1

Spectrum Data

DrExperimental

Conditions

provenancedeterministic_figure_injection

digitization statusok

Figure References

Figure S10

Spectrum Data

DrExperimental

Conditions

provenancedeterministic_figure_injection

digitization statusok,partial

Figure References

Figure S12

Spectrum Data

DrExperimental

Conditions

provenancedeterministic_figure_injection

digitization statusok

Figure References

Figure S13

Spectrum Data

DrExperimental

Conditions

provenancedeterministic_figure_injection

digitization statusok

Figure References

Figure S14

Spectrum Data

DrExperimental

Conditions

provenancedeterministic_figure_injection

digitization statusok

Figure References

Figure S15

Spectrum Data

DrExperimental

Conditions

provenancedeterministic_figure_injection

digitization statusok

Figure References

Figure S5

Spectrum Data

DrExperimental

Conditions

provenancedeterministic_figure_injection

digitization statusok

Figure References

Figure S6

Spectrum Data

DrExperimental

Conditions

provenancedeterministic_figure_injection

digitization statusok

Figure References

Figure S7

Spectrum Data

DrExperimental

Conditions

provenancedeterministic_figure_injection

digitization statusok

Figure References

Figure S8

Spectrum Data

DrExperimental

Conditions

provenancedeterministic_figure_injection

digitization statusok

Figure References

Figure S9

Spectrum Data

Properties

Type	Label	Value	Material	Sample	Condition	Source
Twist Angle	WS₂/WSe₂ heterobilayer	60deg	WS₂ WSe₂	Dual-gated WS₂/WSe₂ moiré heterobilayer device encapsulated		—
Moiré Lattice Constant	aM	8nm	WS₂ WSe₂	Dual-gated WS₂/WSe₂ moiré heterobilayer device encapsulated		—
Twist Angle	WSe₂/WSe₂ homobilayer	58.1deg	WSe₂	Dual-gated WSe₂/WSe₂ moiré homobilayer device encapsulated b		—
PL Peak	regex-detected PL peak	532nm	—	—	—	—