AI Article Synopsis
- The use of thermally activated delayed fluorescence (TADF) emitters can significantly boost the external quantum efficiency (EQE) of organic light-emitting diodes (OLEDs) to over 25%.
- Researchers developed two blue TADF emitters, 3TBO and 5TBO, using an oxygen-bridged boron (BO) structure that ensures high color purity.
- Both OLED devices showed excellent efficiency and color purity, achieving maximum EQE values of 17.3% with specific color coordinates for 3TBO and 26.2% for 5TBO.
Article Abstract
The employment of thermally activated delayed fluorescence (TADF) emitters is one of the most promising ways to realize the external quantum efficiency (EQE) of over 25% for organic light-emitting diodes (OLEDs). In addition, the TADF emitter based on oxygen-bridged boron (BO) fragment can maintain blue emission with high color purity. Herein, we constructed two blue TADF emitters, 3TBO and 5TBO, for OLEDs application. Both emitters consist of three donors linked at the oxygen-bridged boron acceptor. OLED devices based on 3TBO and 5TBO exhibited both high excellent device efficiency and high color purity with a maximum EQE; full-width at half-maximum (FWHM); and CIE coordinates of 17.3%, 47 nm, (0.120, 0.294), and 26.2%, 57 nm, (0.125, 0.275), respectively.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9268263 | PMC |
| http://dx.doi.org/10.3390/molecules27134048 | DOI Listing |
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Article Synopsis
- The use of thermally activated delayed fluorescence (TADF) emitters can significantly boost the external quantum efficiency (EQE) of organic light-emitting diodes (OLEDs) to over 25%.
- Researchers developed two blue TADF emitters, 3TBO and 5TBO, using an oxygen-bridged boron (BO) structure that ensures high color purity.
- Both OLED devices showed excellent efficiency and color purity, achieving maximum EQE values of 17.3% with specific color coordinates for 3TBO and 26.2% for 5TBO.
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