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通过实验研究了不同种类的空穴注入层材料对有机电致发光器件(OLED)性能的影响,将酞菁铜(CuPc)、2T-NaTa和TcTa分别作为空穴注入层材料制备了3种器件,然后测试器件的电流-电压特性、高度-电压特性及发光效率-电压特性,并进行了对比.结果发现用CuPc、2T-NaTa和TcTa作为空穴传输层的3种器件的流明效率最大值分别为2.94cd/A,2.4cd/A和18cd/A;2T-NaTa作为空穴注入层的器件的启亮电压最低.由此得出结论:在实验研究的3种材料中,2T-NaTa最适合作为空穴传输层.
The effects of different hole injection layer materials on the performance of organic electroluminescent devices (OLEDs) were investigated experimentally. Three kinds of devices were prepared using CuPc, 2T-NaTa and TcTa as the hole injection layer material respectively And then the current-voltage characteristics, height-voltage characteristics and luminous efficiency-voltage characteristics of the devices were tested and compared.It was found that the maximum luminous efficiency of the three devices using CuPc, 2T-NaTa and TcTa as the hole transport layer Respectively, which are 2.94cd / A, 2.4cd / A and 18cd / A, respectively, and the device with 2T-NaTa as the hole injection layer has the lowest turn-on voltage.The conclusion is that among the three materials studied, 2T-NaTa Most suitable as a hole transport layer.