Abstract
We report a material having a very small energy gap between its singlet and triplet excited states, ΔE1-3, that realizes efficient up-conversion of triplet excitons into a singlet state, leading to efficient thermally activated delayed fluorescence (TADF). Our molecule, 2-biphenyl-4,6-bis(12-phenylindolo[2,3-a]carbazol-11-yl)-1,3,5-triazine (PIC-TRZ), broke the large energy gap restriction, providing a quite small ΔE1-3 of 0.11 eV while maintaining a high fluorescent radiative decay rate (kr∼107). The intense TADF provides a novel pathway for high efficiency electroluminescence.
| Original language | English |
|---|---|
| Title of host publication | Society for Information Display - 18th International Display Workshops 2011, IDW'11 |
| Pages | 791-794 |
| Number of pages | 4 |
| Volume | 2 |
| Publication status | Published - 2011 |
| Event | 18th International Display Workshops 2011, IDW 2011 - Nagoya, Japan Duration: Dec 7 2011 → Dec 9 2011 |
Other
| Other | 18th International Display Workshops 2011, IDW 2011 |
|---|---|
| Country/Territory | Japan |
| City | Nagoya |
| Period | 12/7/11 → 12/9/11 |
All Science Journal Classification (ASJC) codes
- Computer Vision and Pattern Recognition
- Human-Computer Interaction
- Electrical and Electronic Engineering
- Electronic, Optical and Magnetic Materials
- Radiology Nuclear Medicine and imaging
