n型砷化镓单极纳米oled的电致发光研究。

IF 3.3 2区物理与天体物理 Q2 OPTICS

Optics letters Pub Date : 2025-02-15 DOI:10.1364/OL.546063

Bejoys Jacob, João Azevedo, Jana B Nieder, Bruno Romeira

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引用次数: 0

摘要

在这篇论文中，我们报道了n-i-n单极（电子输运）III-V GaAs纳米oled在~ 866 nm处的电致发光（EL）。该器件由顶部直径为166 nm的纳米柱组成，排列成10 × 10柱阵列。通过在n-i-n二极管的薄膜结构中加入AlAs/GaAs/AlAs双势垒量子阱，通过冲击电离和齐纳隧道产生空穴。时间分辨EL测量显示衰减寿命为bbb300 ps，使我们能够估计在亚毫安电流注入时的内部量子效率（IQE）高于2%。据我们所知，这些结果显示了一种新型n型纳米级发光器件的潜力。

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Electroluminescence in n-type GaAs unipolar nanoLEDs.

In this Letter, we report the observation of electroluminescence (EL) at ∼866 nm from n-i-n unipolar (electron-transporting) III-V GaAs nanoLEDs. The devices consist of nanopillars with a top diameter of 166 nm, arranged in a 10 × 10 pillar array. Hole generation through impact ionization and Zener tunneling is achieved by incorporating an AlAs/GaAs/AlAs double-barrier quantum well within the epilayer structure of the n-i-n diode. Time-resolved EL measurements reveal decay lifetimes >300 ps, allowing us to estimate an internal quantum efficiency (IQE) higher than 2% at sub-mA current injection. These results demonstrate the potential for a new, to the best of our knowledge, class of n-type nanoscale light-emitting devices.

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来源期刊

Optics letters 物理-光学

CiteScore

6.60

自引率

8.30%

发文量

2275

审稿时长

1.7 months

期刊介绍： The Optical Society (OSA) publishes high-quality, peer-reviewed articles in its portfolio of journals, which serve the full breadth of the optics and photonics community. Optics Letters offers rapid dissemination of new results in all areas of optics with short, original, peer-reviewed communications. Optics Letters covers the latest research in optical science, including optical measurements, optical components and devices, atmospheric optics, biomedical optics, Fourier optics, integrated optics, optical processing, optoelectronics, lasers, nonlinear optics, optical storage and holography, optical coherence, polarization, quantum electronics, ultrafast optical phenomena, photonic crystals, and fiber optics. Criteria used in determining acceptability of contributions include newsworthiness to a substantial part of the optics community and the effect of rapid publication on the research of others. This journal, published twice each month, is where readers look for the latest discoveries in optics.