Abstract
The exploration of organic near-infrared (NIR) luminescence, along with circularly polarized luminescence (CPL), is of vital importance due to its significance in medical and optoelectronic applications. Integrating a chiral unit into a D–A molecular structure in this research realized emission peaks at 744 nm, exhibiting a dissymmetric factor of −1.67 × 10−3. The introduced chiral TPA derivative not only imparts aggregation-induced emission properties and CPL capabilities but also induces a redshift in the emission spectrum. Consequently, the fabricated NIR organic light-emitting devices (OLEDs), achieve maximum electroluminescent peaks at 748 nm in nondoped devices with the external quantum efficiency of 13.7% in doped devices. This pioneering research provides inspiration for the design of NIR molecules possessing CPL properties in the future, particularly in promoting the application of intense NIR-OLEDs.
Original language | English |
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Article number | 2303155 |
Journal | Advanced Optical Materials |
Volume | 12 |
Issue number | 16 |
DOIs | |
Publication status | Published - 6 Jun 2024 |
Keywords
- chiral units
- circularly polarized luminescence
- near-infrared emission
- organic light emitting diodes