ArticleScience advances2025
Nanosecond-pulsed electroluminescence from high current-driven quantum-dot light-emitting diodes.
Article in Science advances, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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Who cites it
3 citing papers in PubMed.
- A Standardized Platform for QLED Fabrication and Characterization.Chemistry of materials : a publication of the American Chemical Society · 2026Article
- A Bifunctional Colloidal Quantum Dot Diode for Nanosecond Short-Wave Infrared Detection and Emission.Advanced materials (Deerfield Beach, Fla.) · 2026Article
- Gold Quantum Rods Emit in the Shortwave Infrared (1000-2200 nm) with 10Journal of the American Chemical Society · 2026Article
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Authors and funding
3 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Ultrashort optical emission, with pulse duration ranging from nanoseconds to femtoseconds, is usually obtained from lasers. In this work, we achieve nanosecond-pulsed electroluminescence (EL) from a solution-processed fast-response quantum dot light-emitting diode (QLED). By modeling the QLED with a resistor-capacitor equivalent circuit and analyzing the transient current of the circuit, the dynamic of the carrier injection and transport process that fundamentally affects the transient EL of QLED is revealed, which helps to guide the optimization of fast-response QLED. Driven by a high current source, the optimized QLED can output stable and repeatable ultrashort EL with a pulse duration of 20 nanoseconds, a repetition rate of 50 kilohertz, and a high radiant exitance of 5.4 watts per square centimeter. Enabled by the nanosecond-pulsed EL, the developed QLED can be directly used as an instantaneous excitation source for time-resolved fluorescence spectroscopy. Meanwhile, its use as an exposure flash for high-speed imaging is also demonstrated.
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Registered trials
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