Articles with "interlayer excitons" as a keyword



Polarization‐Sensitive Momentum‐Matching Interlayer Excitons for Infrared Photodetection

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Published in 2024 at "Advanced Functional Materials"

DOI: 10.1002/adfm.202416994

Abstract: 2D materials hold potential for developing low‐cost, high‐performance broadband polarized infrared photodetectors. However, the development of 2D broadband polarized infrared photodetectors is largely constrained by the fixed bandgap spectral (cutoff wavelength) limitations of available semiconductors.… read more here.

Keywords: sensitive momentum; momentum matching; polarization sensitive; matching interlayer ... See more keywords

Infrared Interlayer Excitons in Twist‐Free MoTe2/MoS2 Heterobilayers

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Published in 2024 at "Advanced Materials"

DOI: 10.1002/adma.202404371

Abstract: Excitonic devices based on interlayer excitons in van der Waals heterobilayers are a promising platform for advancing photoelectric interconnection telecommunications. However, the absence of exciton emission in the crucial telecom C‐band has constrained their practical… read more here.

Keywords: excitonic devices; mote2 mos2; interlayer excitons; emission ... See more keywords

Surface State Mediated Interlayer Excitons in a 2D Nonlayered–Layered Semiconductor Heterojunction

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Published in 2017 at "Advanced electronic materials"

DOI: 10.1002/aelm.201700373

Abstract: Van der Waals heterojunctions of 2D layered semiconductors and nonlayered technological important II–V semiconductors provide unprecedented opportunities to engineer exciton and carrier dynamics in 2D optoelectronic devices. However, fabrication of such artificial heterojunctions with type-II… read more here.

Keywords: surface state; interlayer excitons; spectroscopy; heterojunction ... See more keywords

Highly Strain-Tunable Interlayer Excitons in MoS2/WSe2 Heterobilayers.

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Published in 2021 at "Nano letters"

DOI: 10.1021/acs.nanolett.1c00724

Abstract: Interlayer excitons in heterobilayers of transition-metal dichalcogenides (TMDCs) have generated enormous interest due to their permanent vertical dipole moments and long lifetimes. However, the effects of mechanical strain on the optoelectronic properties of interlayer excitons… read more here.

Keywords: interlayer excitons; mos2 wse2; strain tunable; interlayer ... See more keywords

Valley-Dependent Interlayer Excitons in Magnetic WSe2/CrI3.

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Published in 2021 at "Nano letters"

DOI: 10.1021/acs.nanolett.1c01232

Abstract: Heterostructures of two-dimensional transition-metal dichalcogenides and ferromagnetic substrates are important candidates for the development of viable new spin- or valleytronic devices. For the prototypical bilayer of WSe2 on top of a ferromagnetic layer of CrI3,… read more here.

Keywords: interlayer excitons; valley dependent; dependent interlayer; wse2 ... See more keywords

Layer-Number Engineered Momentum-Indirect Interlayer Excitons with Large Spectral Tunability.

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Published in 2022 at "Nano letters"

DOI: 10.1021/acs.nanolett.2c02742

Abstract: Interlayer excitons (IXs) in type II van der Waals (vdW) heterostructures are equipped with an oriented permanent dipole moment and long lifetime and thus would allow promising applications in excitonic and optoelectronic devices. However, based… read more here.

Keywords: momentum indirect; momentum; layer number; interlayer excitons ... See more keywords

Nature of Long-Lived Moiré Interlayer Excitons in Electrically Tunable MoS2/MoSe2 Heterobilayers

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Published in 2024 at "Nano Letters"

DOI: 10.1021/acs.nanolett.4c02635

Abstract: Interlayer excitons in transition-metal dichalcogenide heterobilayers combine high binding energy and valley-contrasting physics with a long optical lifetime and strong dipolar character. Their permanent electric dipole enables electric-field control of the emission energy, lifetime, and… read more here.

Keywords: long lived; interlayer; interlayer excitons; nature long ... See more keywords
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Selective Chemical Modulation of Interlayer Excitons in Atomically Thin Heterostructures.

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Published in 2020 at "Nano letters"

DOI: 10.1021/acs.nanolett.9b05254

Abstract: Strongly-bound interlayer excitons (XIs) in atomically thin transition metal dichalcogenide (TMDC) heterostructures such as MoS2/WSe2 show promising optoelectronic properties for spinvalleytronics and excitonic devices. The ability to probe and control XIs is critical for the… read more here.

Keywords: interlayer excitons; modulation interlayer; interlayer; chemical modulation ... See more keywords

Long-Lived Interlayer Excitons in WS2/Ruddlesden-Popper Perovskite van der Waals Heterostructures.

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Published in 2024 at "ACS applied materials & interfaces"

DOI: 10.1021/acsami.4c07346

Abstract: Two-dimensional (2D) transition metal dichalcogenides (TMDs) and perovskites hold substantial promise for various optoelectronic applications such as light emission, photodetection, and energy harvesting. However, each of these materials possesses certain limitations that can be overcome… read more here.

Keywords: van der; ws2 ruddlesden; popper perovskite; interlayer excitons ... See more keywords

Microsphere Probe-Assisted Trapping and Enhancement of Interlayer Excitons in WSe2/MoSe2 Heterostructures under Ultralow Pressure.

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Published in 2025 at "ACS applied materials & interfaces"

DOI: 10.1021/acsami.5c08749

Abstract: Interlayer excitons, bound states of electrons and holes residing in opposite layers of a heterostructure, are vital for the optical properties of van der Waals semiconducting heterostructures. Effective mechanical control of interlayer excitons in van… read more here.

Keywords: pressure; mose2 wse2; control; interlayer ... See more keywords

Observation of Interlayer Excitons in Mixed-Dimensional MoS2 and InGaN/GaN Quantum Well Heterojunctions.

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Published in 2025 at "ACS applied materials & interfaces"

DOI: 10.1021/acsami.5c16066

Abstract: Mixed-dimensional heterojunctions (HJs) between compound semiconductors and transition metal dichalcogenides (TMDCs) provide a versatile platform for modulating interfacial exciton dynamics. While compound semiconductors offer precise compositional control for bandgap tuning across wide spectral ranges, they… read more here.

Keywords: exciton; observation interlayer; interlayer excitons; quantum well ... See more keywords