ArticleScience advances2022
Injection-free multiwavelength electroluminescence devices based on monolayer semiconductors driven by an alternating field.
Article in Science advances, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
4 citing papers in PubMed.
- 2D Material light-emitting transistor with a dynamically controllable emission location for optimized waveguide coupling on silicon.Science advances · 2026Article
- Electrically-Driven 2D Semiconductor Microcavity Laser.Advanced materials (Deerfield Beach, Fla.) · 2025Article
- Van der Waals integrated single-junction light-emitting diodes exceeding 10% quantum efficiency at room temperature.Science advances · 2024Article
- Selective Enhancement of Photoresponse with Ferroelectric-Controlled BP/InAdvanced science (Weinheim, Baden-Wurttemberg, Germany) · 2023Article
Corrections and comments
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Authors and funding
7 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Two-dimensional (2D) semiconductors have emerged as promising candidates for various optoelectronic devices especially electroluminescent (EL) devices. However, progress has been hampered by many challenges including metal contacts and injection, transport, and confinement of carriers due to small sizes of materials and the lack of proper double heterostructures. Here, we propose and demonstrate an alternative approach to conventional current injection devices. We take advantage of large exciton binding energies in 2D materials using impact generation of excitons through an alternating electric field, without requiring metal contacts to 2D materials. The conversion efficiency, defined as the ratio of the emitted photons to the preexisting carriers, can reach 16% at room temperature. In addition, we demonstrate the first multiwavelength 2D EL device, simultaneously operating at three wavelengths from red to near-infrared. Our approach provides an alternative to conventional current-based devices and could unleash the great potential of 2D materials for EL devices.
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Registered trials
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