Enabling Thermally Stimulated Delayed Phosphorescence in Cu(I) Cyclic Trinuclear Complexes with Near-Unity Quantum Yield.

• Tác giả: Xu Chen, Guo-Quan Huang, Yong-Liang Huang, Dan Li, Weigang Lu, Kun Wu, Ri-Qin Xia, Hu Yang, Ji Zheng
• Ngôn ngữ: eng
• Ký hiệu phân loại: 152.1822 Sensory perception
• Thông tin xuất bản: United States : Journal of the American Chemical Society , 2025
• Bộ sưu tập: NCBI
• ID: 180418

Tóm tắt

Thermally stimulated delayed phosphorescence (TSDP) emission has recently been discovered in several Au(I)/Au(III) complexes, featuring thermally enhanced emission intensities and notable quantum yields (QYs). Developing earth-abundant metal-based TSDP emitters with further increased QYs holds significant promise for practical applications. Herein, we present a halogen bonding approach to achieve TSDP emission in bromo-substituted Cu(I) cyclic trinuclear complexes (CTCs). Photophysical analysis and theoretical calculations reveal the crucial role of halogen bonding in suppressing the excited-state distortions and reducing energy differences between the first and second triplet excited states (T