HEИндивидуална стипендия2022–2025

PNIRED · Developing near-infrared persistent room-temperature phosphorescence for down-conversion OLEDs

„Хоризонт Европа“ — Действия „Мария Склодовска-Кюри“

Период
2022-12-01 → 2025-01-31
Финансиране от ЕС
173 847 €
Участници
2
Схема
HORIZON-TMA-MSCA-PF-EF

Линиите свързват координатора с партньорите.

Накратко на български

Органични материали, които светят в близо-инфрачервения спектър при стайна температура, се разработват за използване в OLED дисплеи. Те ще помогнат за по-доброто разбиране на молекулярните механизми и ще подобрят технологиите за сензори и защита срещу фалшификати.

Този кратък обзор е генериран от изкуствен интелект

Кратко обяснение, генерирано от езиков модел по текста на CORDIS. Оригиналът е по-долу.

Резултати накратко

Developing near-infrared persistent room-temperature phosphorescence for down-conversion OLEDs

The development of persistent room-temperature phosphorescence (p-RTP) materials represents a critical advancement in the fields of organic optoelectronics, bio-imaging, and sensing technologies. Traditional phosphorescent materials often require heavy-metal complexes or cryogenic conditions to achieve long-lived emission, limiting their applicability in practical devices. However, limited by the energy gap law, most of the reported p-RTP materials emitting in the visible region, near infrared (NIR) phosphors are rarely reported, not to mention their applications in optoelectronic devices, particularly affecting the interest in organic light-emitting diodes (OLEDs). Despite significant progress in p-RTP materials, developing general approaches to engineering NIR p-RTP emission together with constructing persistent NIR OLEDs is missing, which remains a major scientific challenge. This project aims to overcome these limitations by developing heavy-atom-free organic NIR p-RTP materials and establishing their applications in NIR down-conversion OLED pixels and advanced optoelectronic devices with persistent emission. The exploration of NIR p-RTP materials is of great significance to increase the level of understanding molecular mechanisms as well as expanding these studies to wider sets of materials and functional systems. The project is structured around two main objectives: the development of high-performance NIR p-RTP material systems and the integration of NIR p-RTP systems into optoelectronic devices. This project has the potential to develop approaches for organic NIR p-RTP material systems and significantly advance OLED technology, anti-counterfeiting, and sensing applications. The anticipated impact includes scientific advancements of getting a deeper understanding of the excited-state dynamics and molecular engineering strategies, technological innovations of improving NIR p-RTP systems for advanced applications, and societal and economic benefits of enabling cost-effective, environmentally friendly alternatives to existing phosphorescent materials, aligning with the European Green Deal and sustainable electronics initiatives.

Текст от CORDIS, на английски · Данни: CORDIS, © Европейски съюз

Цел на проекта

The continuous progress of persistent room-temperature phosphorescence (p-RTP) emitting in near infrared (NIR) with high potential for long-lifetime and flexible optoelectronic applications is spearheaded by the development of novel materials. Much of this interest is also due to the concomitant advantages of the organic light-emitting diode (OLED) technology. Future OLED displays are envisioned to comprise an additional NIR pixel for imaging and security protocols. Equally such NIR OLEDs can be used as a monolithically manufactured light sources in bioimaging applications. However, limited by the energy gap law, the majority of p-RTP materials emit in the visible region, NIR phosphors are rarely reported. To solve this challenge, this project aims to progress along two clear research directions: i) engineering efficient NIR p-RTP emissive material systems and ii) developing well-performing (persistent) NIR OLEDs. To construct NIR p-RTP material systems, we will put in action work packages (WPs) 1-2 by employing available organic materials to engineer host/guest emissive systems with high efficiency and stability. The correlation of their photophysical properties to the molecular microenvironment will also be investigated using the state-of-the-art spectroscopy methodologies to elucidate the mechanisms. WPs 3-4 will use established OLED fabrication routines to develop efficient NIR down-conversion OLED pixels with persistent emission and transfer the knowledge to an industrial R&D environment. The multi-disciplinary project will bridge the gap between the fundamental material research of NIR p-RTP emission and the monolithic integration of these systems in actual OLEDs as down-conversion layers for advanced sensing applications through joint research in physics, engineering and material science. I can perfectly bring in my existing skills, further broaden my expertise substantially and foster academic and industrial connections to build my future career network.

Оригинален текст от CORDIS (на английски).

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Данни: CORDIS, © Европейски съюз