Table · dataset · 2026
Spatially Confined Liquid-Precursor CVD Enables Direct Growth of WS<sub>2</sub>/MoS<sub>2</sub> Twisted Heterostructures
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The performance of two-dimensional transition metal dichalcogenide (TMD) heterostructures is profoundly influenced by their interlayer coupling with modulating twist angles.
Description
However, it is still a great challenge to achieve thermodynamically unfavorable twisted TMD heterostructures. Herein, WS<sub>2</sub>/MoS<sub>2</sub> heterostructures with unfavorable twist angles from 0° to 100° were directly synthesized by a spatially confined liquid-precursor-assisted CVD growth.
Spectroscopic analyses reveal that non-0° twisted heterostructures exhibit weakened interlayer coupling with the redshift of the Raman A<sub>1g</sub> mode. Low-temperature photoluminescence indicates the resonance energy transfer from the MoS<sub>2</sub> B exciton to the WS<sub>2</sub> A exciton, enhancing WS<sub>2</sub> emission. The thermodynamically unfavorable (20°, 30°, and 90°) twisted heterostructures are found to possess much larger interfacial work function difference and longer exciton lifetimes, indicating more efficient interfacial charge transfer.
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This work clarifies the fundamental role of twist angle in modulating the built-in electric field and exciton dynamics of WS<sub>2</sub>/MoS<sub>2</sub> heterostructures and underscores their great potential for practical optoelectronic applications.
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Where it is published
- DOI doi.org/10.1021/acs.jpcc.6c04953.s001 ↗
DOI / persistent id · from zivahub uct ac za
Catalogue records · 1
- OAI-PMH record api.figshare.com/v2/oai?verb=GetRecord&metadataPrefix=oai_dc&identifier=oai%3Af… ↗
metadata API · from zivahub uct ac za
Topics
- From keywords
- Astronomy & Astrophysics · Chemistry · Earth & Environmental Science · Ecology · Energy · Life Sciences · Medicine & Health
Provenance · 1 source records, 12 field assertions
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