High Hole Mobilities in the Amorphous Films of 2,7-Di(9-carbazolyl)-9-(2-ethylhexyl)carbazole
作者:Ausra Tomkeviciene、Juozas V. Grazulevicius、Vygintas Jankauskas
DOI:10.1246/cl.2008.344
日期:2008.3.5
2,7-Di(9-carbazolyl)-9-(2-ethylhexyl)carbazole was synthesized and investigated as new effective hole-transporting material. The synthesized compound showed high thermal stability with the initial weight loss temperature of 400 °C. It forms glass with glass-transition temperature of 88 °C. Hole drift mobilities in the amorphous films of the newly synthesized compound exceeded 10−2 cm2 V−1 s−1 at high electric field, as characterized by the xerographic time of flight technique.
研究人员合成了 2,7-二(9-咔唑基)-9-(2-乙基己基)咔唑,并将其作为新的有效空穴传输材料进行了研究。合成的化合物具有很高的热稳定性,初始失重温度为 400 ℃。它能形成玻璃,玻璃转化温度为 88 ℃。在高电场下,新合成化合物无定形薄膜中的空穴漂移迁移率超过了 10-2 cm2 V-1 s-1,这是用Xerographic飞行时间技术表征的。