A novel ambipolar spirobifluorene derivative that behaves as an efficient blue-light emitter in organic light-emitting diodes |
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| Authors: | Liao Yuan-Li Lin Chi-Yen Wong Ken-Tsung Hou Tei-Hung Hung Wen-Yi |
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| Institution: | Department of Chemistry, National Taiwan University, Taipei 106, Taiwan. |
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| Abstract: | A novel ambipolar spiro-configured D-A blue-light emitter bearing hole-transporting diphenylamino groups and electron-transporting phenylbenzimidazole groups was synthesized, characterized, and incorporated into an efficient single-layer organic light-emitting diode (OLED) device exhibiting blue-emission Commission International d'Eclairage (CIE) coordinates of 0.15 and 0.14, a turn-on potential of 4 V, a maximum brightness of 2800 cd/m2 at 830 mA/cm2 (19 V), and a maximum quantum efficiency of 0.53% (0.61 cd/A). |
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