21‐4:提高微缩AlGaN紫外- C微型LED的光输出功率密度

Feng Feng, Yibo Liu, Zichun Li, Ke Zhang, Ka-Wah Chan, Zhaojun Liu, Hoi-Sing Kwok
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引用次数: 0

摘要

具有高光功率密度的紫外波段C (UV - C)微发光二极管(micro - led)因其坚固的结构和可调节的发射波长,在灭菌、太阳盲通信和神经科学等领域的应用日益受到重视。在这项工作中,AlGaN UV - C Micro - LEDs在5×5, 10×10, 20×20, 30×30, 50×50, 80×80和100×100 μm2中被制备和表征。随着像素尺寸的缩小,在相同的注入电流密度下,较小的器件有可能发出更可观的光输出功率(LOP)密度。这种LOP密度尺寸效应意味着小尺寸UV - C Micro - led的发光效率更高,可以在工业上广泛采用。
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21‐4: Elevating the Light Output Power Density of Scaling‐down AlGaN Ultraviolet‐C Micro‐LED
Ultraviolet band‐C (UV‐C) micro‐light‐emitting diodes (Micro‐LEDs) with high optical power density are increasingly demanded in the utilization of sterilization, solar‐blind communications, and neuroscience for the robust structure and adjustable emission wavelength. In this work, AlGaN UV‐C Micro‐LEDs are fabricated and characterized in 5×5, 10×10, 20×20, 30×30, 50×50, 80×80, and 100×100 μm2. With pixel size scaling down, the smaller devices have the potential to emit more considerable light output power (LOP) density at the same injected current density. This LOP density sizing effect implies higher luminescence efficiencies on small‐sized UV‐C Micro‐LEDs, which could be widely adopted by the industry.
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