Exceedingly efficient deep-blue electroluminescence from new anthracenes obtained using rational molecular design
Exceedingly efficient deep-blue electroluminescence from new anthracenes obtained using rational molecular design
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通过合理的分子设计获得新蒽的极其高效的深蓝色电致发光
DOI：
10.1039/b805062g
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发表时间：
2008-01-01
影响因子：
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通讯作者：
Park, Jong-Wook
中科院分区：
文献类型：
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作者：
Kim, Soo-Kang;Yang, Bing;Park, Jong-Wook
通过硼化反应和Suzuki芳基-芳基偶联反应，合成了9，10-双（3 '，5'-二苯基苯基）蒽[MAM]，9-（3 '，5'-二苯基苯基）-10-（3 '“'，5 '''二苯基联苯-4'-基）蒽[MAT]和9，10-双（3 '"'，5 '''二苯基联苯-4'-基）蒽[达特].我们已经证明，蓝光发射体的EL性能可以通过改变侧基的化学结构来优化和改善。在薄膜状态下，三种材料表现出在439-445 nm范围内的PLmax值。MAM、MAT和达特都具有高于120 ℃的高Tg值;达特具有最高的Tg值，高于150 ℃。这是DPVBi（64 ℃）的两倍，也比MADN（120 ℃）高得多。它还具有出色的色坐标（0.156，0.088），非常接近NTSC蓝色标准，外部量子效率为7.18%，是MADN的两倍，这是深蓝色OLED发射器的最佳报道结果。
9,10-Bis(3',5'- diphenylphenyl) anthracene [MAM], 9-(3',5'-diphenylphenyl)-10-(3''', 5'''diphenylbiphenyl- 4 ''-yl) anthracene [MAT], and 9,10-bis(3''',5'''-diphenylbiphenyl-4'-yl) anthracene [TAT] were newly synthesized through boration and Suzuki aryl-aryl coupling reactions. We have demonstrated that the EL performance of blue-light emitters can be optimized and improved by varying the chemical structures of the side groups. In the thin film state, the three materials exhibit PLmax values in the range of 439-445 nm. MAM, MAT, and TAT all have high T-g values above 120 degrees C; TAT has the highest T-g value, above 150 degrees C. This is twice as high as that of DPVBi (64 degrees C) and is much higher than that of MADN (120 degrees C) as well. It also exhibits excellent color coordinates (0.156, 0.088), which are very close to the NTSC blue standard, and an external quantum efficiency of 7.18%, twice that of MADN, which are the best reported results for deep-blue OLED emitters.