Atoini Youssef, Cavinato Luca M, Schmitt Jean-Louis, Van Opdenbosch Daniel, Costa Rubén D
Technical University of Munich, Campus Straubing for Biotechnology and Sustainability, Chair of Biogenic Functional Materials, Schulgasse, 22, Straubing 94315, Germany.
Laboratoire de Chimie Supramoléculaire, Institut de Science et d'Ingénierie Supramoléculaires, 8, allée Gaspard Monge, 67000 Strasbourg, France.
Dalton Trans. 2024 Jul 30;53(30):12455-12459. doi: 10.1039/d4dt01690d.
Stable and efficient green hybrid light-emitting diodes (HLEDs) were fabricated from a highly emissive Mg(II)-tetraphenyl ethylene derivative metal-organic framework embedded in a polystyrene matrix (Mg-TBC MOF@PS). The photoluminescence quantum yield (ϕ) of the material, >80%, remains constant upon polymer embedment. The resulting HLEDs featured high luminous efficiencies of >50 lm W and long lifetimes of >380 h, making them among the most stable MOF-based HLEDs. The significance of this work relies on the combination of many features, such as the abundance of the metal ion, the straightforward scalability of the synthetic protocol, the great ϕ reached upon phosphor fabrication, and the state-of-the-art HLED performances.
稳定高效的绿色混合发光二极管（HLED）由嵌入聚苯乙烯基质（Mg-TBC MOF@PS）中的高发射性Mg（II）-四苯基乙烯衍生物金属有机框架制成。该材料的光致发光量子产率（ϕ）>80%，在聚合物嵌入后保持恒定。所得的HLED具有>50 lm W的高发光效率和>380 h的长寿命，使其成为最稳定的基于MOF的HLED之一。这项工作的意义在于多种特性的结合，如金属离子的丰富性、合成方案的直接可扩展性、磷光体制备时达到的高ϕ以及最先进的HLED性能。
