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Updated: Jul 10, 2025

Enhanced Electron Injection and Exciton Confinement for Pure Blue Quantum-Dot Light-Emitting Diodes by Introducing Partially Oxidized Aluminum Cathode
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双向发光二极管作为可见光源,由交流电驱动

Mikołaj Żak1, Grzegorz Muziol2, Marcin Siekacz2

  • 1Institute of High Pressure Physics Polish Academy of Sciences, Sokołowska 29/37, 01-142, Warsaw, Poland. mzak@unipress.waw.pl.

Nature communications
|November 21, 2023
PubMed
概括

本研究介绍了一种双向化发光二极管 (LED),该二极管直接使用交流电 (AC) 工作. 这种新型设备在两种电流方向发光,简化了交流电动照明应用.

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The operation of a p-n junction diode involves various biasing conditions, including forward bias, reverse bias, and equilibrium.
In equilibrium, no external voltage is applied across the p-n junction. The depletion region is formed at the junction interface due to the diffusion of carriers, which leaves behind charged dopants, acceptors on the p-side, and donors on the n-side. These immobile charges create an electric field that prevents further diffusion of carriers. The related energy band...
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In semiconductor devices, diodes play a crucial role in directing current flow, and its operation is primarily categorized into forward bias and reverse bias. A diode is said to be forward-biased when its p-type region is connected to the positive terminal of a battery and its n-type region is linked to the negative terminal. This configuration reduces the potential barrier within the diode, allowing current to flow easily from the p to the n-type region.
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