Influence of copper phthalocynanine on the charge injection and growth modes for organic light emitting diodes
Influence of copper phthalocynanine on the charge injection and growth modes for organic light emitting diodes
复制标题
酞菁铜对有机发光二极管电荷注入和生长模式的影响
DOI：
10.1116/1.582438
复制
发表时间：
2000
期刊：
影响因子：
--
通讯作者：
C. Tang
中科院分区：
文献类型：
--
作者：
E. Forsythe;M. Abkowitz;Yongli Gao;C. Tang
在氧化铟锡(ITO)阳极和N，N‘-二(1-萘基)-N，N’-二苯基-1，1-联苯基-4，4‘-二胺(NPB)空穴传输层之间引入铜邻苯基(CuPc)层，提高了有机电致发光器件(OLED)的稳定性和发光效率。在下文中，我们研究了有助于提高稳定性的CuPc缓冲液的两个基本性质。利用飞行时间和暗电流作为外加电场的函数，我们证明了CuPc过渡层对从ITO到NPB传输层的空穴注入有影响。由于NPB是无陷阱的，因此可以从相同外场下测量的漂移迁移率和暗电流来确定空穴注入效率的直接和自洽的测量。通过这种方法，我们已经能够证明从ITO阳极到NPB的空穴传输是受注入限制的，并且在15.0 nm的CuPc界面下空穴注入效率进一步降低。
The stability and efficiency for organic light emitting diodes (OLEDs) based on tris-8-(hydroxyquinoline) aluminum and N,N′-bis-(1-naphthyl)-N,N′-diphenyl1-1, 1-biphenyl1-4,4′-diamine (NPB) are enhanced with the use of a copper phthalocynanine (CuPc) layer between the indium tin oxide (ITO) anode and the NPB hole transport layer. In the following, we have investigated two fundamental properties of the CuPc buffer that contribute to improved stability. Using time of flight and dark current as a function of applied field, we show that the CuPc interlayer influences the hole injection from the ITO to the NPB transport layer. Because NPB is trap free, a direct and self-consistent measure of the hole injection efficiency can be determined from the measured drift mobility and dark current at the same applied field. By this means we have been able to demonstrate that the hole transport from the ITO anode to the NPB is injection limited and the hole injection efficiency is further reduced with a 15.0 nm CuPc inte...
2 酶法合成脱氧直链淀粉链疏水性多糖
DOI：
--
发表时间：
2021
期刊：
影响因子：
--
作者：
松尾 尚紀;金澤 有紘;青島 貞人;安部省吾 ・ 山 元 和哉 ・ 門川淳一
通讯作者：
安部省吾 ・ 山 元 和哉 ・ 門川淳一