Seal Encapsulation: OLED Sealing Processes

Tominetti, S.; Gigli, Jiabril; Shih, Sheng-Hsu; Su, Yu-Ting; Jou, Jwo‐Huei

doi:10.1007/978-4-431-55761-6_23-2

Cited by 2 publications

(1 citation statement)

References 13 publications

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“…Given that the first OLED was only 100 h life 39 that eventually reached a sufficient level for authentic commercial products in the 2010s (t 0.5 ~400,000 h) 40 , a remarkable improvement is expected in BP LED by developing better packaging technologies. A UV curable resin encapsulation, commonly used for OLEDs and other materials, can be applied to BP LEDs as a lessstress and scalable technique 36,41 .…”

Section: Discussionmentioning

confidence: 99%

Long operating lifetime mid-infrared LEDs based on black phosphorus

et al. 2023

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Black phosphorus (BP) is a narrow bandgap layered semiconductor promising for mid-infrared optoelectronic applications. BP-based devices have been shown to surpass state-of-the-art mid-infrared detectors and light-emitting diodes (LEDs) in terms of performance. Despite their device advantages, the material’s inherent instability in the air could hinder its use in practical optoelectronic applications. Here, we investigated the impact of passivation on the device lifetime of BP LEDs, which deteriorate in a matter of seconds without using passivation. The lifetime is significantly extended with an Al2O3 passivation layer and nitrogen packaging via atomic layer deposition and ultra-violet curable resin sealing. The operational lifetime (half-life) at room temperature is extrapolated to be ~15,000 h with an initial power density of 340 mW/cm2 based on accelerated life testing. The present results indicate that efficient BP optoelectronics can be highly robust through simple and scalable packaging technologies, with important practical implications for mid-infrared applications.

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