论文信息 - 30.4: High‐Efficiency Fluorescent Red‐ and Yellow‐Emitting OLED Devices

30.4: High‐Efficiency Fluorescent Red‐ and Yellow‐Emitting OLED Devices

We report high-efficiency fluorescent red OLEDs with 11.5% EQE (15 cd/A) at 3 V, and yellow OLEDs with 8.6% EQE (28 cd/A) at 2.9 V. This performance was obtained using a nonemitting assist layer adjacent to the emission layer, and low-voltage electron-transporting and electron-injecting layers. Time-resolved electroluminescence measurements indicate a significant efficiency contribution (up to 50%) from triplet—triplet annihilation processes.

Tukaram K. Hatwar | Jeffrey P. Spindler | William James Begley | Denis Y. Kondakov

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