HEИндивидуална стипендия2023–2025

deBioLED · Design of Bioinspired Chromophore-Protein Complexes for Color Converting Layers of Organic Light Emitting Diodes

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

Период: 2023-10-01 → 2025-09-30
Финансиране от ЕС: 165 313 €
Участници: 1
Схема: HORIZON-TMA-MSCA-PF-EF

Линиите свързват координатора с партньорите.

Накратко на български

Синтетични протеини се използват за стабилизиране на органични молекули, които променят цвета на светлината в LED диодите. Това помага за замяната на токсични и редки материали с биоразградими алтернативи, които се обработват с безопасни разтворители като вода.

Този кратък обзор е генериран от изкуствен интелект

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

Резултати накратко

Design of Bioinspired Chromophore-Protein Complexes for Color Converting Layers of Organic Light Emitting Diodes

The global transition to sustainable energy relates the development of new strategies for the photonics and optoelectronics sectors with the intention of eliminating the usage of toxic, scarce, or environmentally damaging materials. Solid-state lighting devices have become critical to reduce energy consumption and, thus, carbon emissions. The modulation of the color produced by such devices is usually done by means of Color Converting Layes (CCLs). However, the current state-of-the-art CCLs still rely on rare-earth elements, cadmium-based quantum dots, or complex inorganic nanomaterials. In this scenarium, organic chromophores are neglected due to their tendency to aggregate when processed in solution (leading to emission quenching), and for their poor photostability. To tackle these issues, biogenic matrices as de novo designed protein maquettes offer an opportunity. These proteins synthetically produced by microoorganisms, can be designed to host chromophores in specific environments in order to tune their light emission efficiency and chemical stability. By doing so, organic chromophores can become sustainable CCLs of lighting devices through the processing with harmless solvents (e.g., water), avoiding molecular aggregation. Yet this technology remains underexplored in optoelectronics, leaving a gap between fundamental protein design and real-world applications. Therefore, the main objective of this project is to establish protein maquettes as a new platform for sustainable light conversion, demonstrating their capacity to stabilize chromophores in aqueous and environmentally friendly media, and enhance their optical and photophysical performance. The political and strategic context underscores an urgent need for biodegradable, low-energy, and circular materials solutions – following pacts as the EU Green Deal, and the Critical Raw Materials Act.

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

Цел на проекта

In deBioLED, I seek to design bioinspired chromophore-protein complexes of high red emission efficiency to fabricate the next generation of eco-friendly color converting layers (CCLs) of organic light-emitting diodes (OLEDs). Despite OLEDs already consume 70% less energy than typical lighting sources, their production still depends on a high input of energy and use toxic components yet yielding devices of poor stability. Given the on-going energetic and environmental crisis, it is crucial to push the development of OLEDs towards the usage of greener and recyclable materials, together with faster and simpler fabrication protocols. I propose to construct supramolecular assemblies of great color purity and photostability by inserting synthetic chromophores into protein matrices to compose CCLs that will be coupled with OLEDs to render white light emitting devices. These renewable CCLs will allow the production of efficient OLEDs with only a few layers to avoid creation of morphological defects, which helps to prolong the devices durability. The CCLs will be built with de novo designed proteins, scaffolds that offer a precise way to accommodate synthetic chromophores by controlling their relative distance and environments. With that protein platform, I will tune the chromophores emission properties and promote energy transfer paths similarly to natural photosynthetic pigment-protein complexes. I will use two different red emitting chromophores to convert part of the OLED blue emission to red, so the combination of emitted colors will yield white light. Red light extraction from CCLs will be boosted by enhancing the density of chromophores on the excited state as one of them will transfer the acquired excitation energy from the OLED to the other in a cascade of events, studied by ultrafast time-resolved spectroscopy. Thus, by engineering intricated photophysical phenomena within de novo proteins I will deliver a new strategy to improve the efficiency of bioinspired CCLs.

Оригинален текст от CORDIS (на английски).

Участници

FUNDACIO INSTITUT CATALA D'INVESTIGACIO QUIMICA · TARRAGONAКоординаторИспания