Advanced 1.5-µm emitting materials that can be used to fabricate electrically driven light-emitting devices have the potential for developing cost-effective light sources for integrated silicon photonics. Sensitized erbium (Er³⁺) in organic materials can give bright 1.5-µm luminescence and provide a route for realizing 1.5-µm organic light emitting diodes (OLEDs). However, the Er³⁺ electroluminescence (EL) intensity needs to be further improved for device applications. Herein, an efficient 1.5-µm OLED made from a sensitized organic Er³⁺ co-doped system is realized, where a “traditional” organic phosphorescent molecule with minimal triplet–triplet annihilation is used as a chromophore sensitizer. The chromophore provides efficient sensitization to a co-doped organic Er³⁺ complex with a perfluorinated-ligand shell. The large volume can protect the Er³⁺ 1.5-µm luminescence from vibrational quenching. The average lifetime of the sensitized Er³⁺ 1.5-µm luminescence reaches ~0.86 ms, with a lifetime component of 2.65 ms, which is by far the longest Er³⁺ lifetime in a hydrogen-abundant organic environment and can even compete with that obtained in the fully fluorinated organic Er³⁺ system. The optimal sensitization enhances the Er³⁺ luminescence by a factor of 1600 even with a high concentration of the phosphorescent molecule, and bright 1.5-µm OLEDs are obtained.

可用于制造电驱动发光器件的先进的1.5 µm发射材料具有开发集成硅光子学的经济有效光源的潜力。有机材料中的（Er ³⁺）可以产生1.5 µm的明亮发光，并提供实现1.5 µm的有机发光二极管（OLED）的途径。但是，Er ³⁺电致发光（EL）强度需要进一步提高以用于设备应用。本文中，由敏化的有机Er ³⁺制成的高效1.5- ^μmOLED实现了共掺杂系统，其中使用具有最小三重态-三重态an灭的“传统”有机磷光分子作为生色团敏化剂。发色团对具有全氟化配体壳的共掺杂有机Er ³⁺络合物提供了有效的敏化作用。大体积可以保护Er ³⁺ 1.5 µm发光免于振动猝灭。敏化的Er ³⁺ 1.5 µm发光的平均寿命达到〜0.86 ms，寿命成分为2.65 ms，这是迄今为止在富含氢的有机环境中最长的Er ³⁺寿命，甚至可以与获得的寿命竞争。在完全氟化的有机Er ³⁺系统中。最佳感光度可增强Er ³⁺ 即使是高浓度的磷光分子，也能以1600倍的亮度发光，从而获得了1.5μm的明亮OLED。