Electric field-assisted bipolar charge spouting in organic thin-film diodes
Electric field-assisted bipolar charge spouting in organic thin-film diodes
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DOI：
10.1063/1.1640470
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发表时间：
2004-01
影响因子：
4
通讯作者：
T. Tsutsui;M. Terai
中科院分区：
文献类型：
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作者：
T. Tsutsui;M. Terai
本文提出了电场辅助双极电荷在有机固体薄膜中喷射的概念，并结合有机薄膜二极管的器件特性进行了实验验证。三个有机薄膜二极管，氧化铟锡（ITO）/N，N '-二苯基-N，N'-双（3-甲基苯基）-1，1 ′-联苯-4，4 ′-二胺（TPD）/三（8-羟基喹啉）铝（III）（Alq 3）/Al（常规发光二极管），ITO/Alq 3/TPD/Al（倒置叠层二极管）和ITO/Alq 3/Mg掺杂的Alq 3/V2 O 5/TPD/Al（具有载流子喷射区的倒置叠层二极管），并观察了它们的二极管特性。在第二二极管中，当ITO电极被偏置为正时，基本上没有电流流动。另一方面，在第三二极管中观察到大的电流流动，表明发生了从由Mg掺杂的Alq 3和V2 O 5组成的电荷分离区喷出的电荷载流子。
We propose a concept of electric field-assisted bipolar charge spouting in organic solid films, and experimentally verify this concept based on device characteristics of organic thin-film diodes. Three organic thin-film diodes, indium-tin oxide (ITO)/N,N′-diphenyl-N,N′-bis(3-methylphenyl)-1,1′-biphenyl-4,4′-diamine (TPD)/tris(8-quinolinolato)alminum(III) (Alq3)/Al (conventional light-emitting diode), ITO/Alq3/TPD/Al (inverted-stack diode), and ITO/Alq3/Mg-doped Alq3/V2O5/TPD/Al (inverted-stack diode with carrier spouting zone), are prepared and their diode characteristics are observed. In the second diode, essentially no current flow is found when the ITO electrode is biased positive. On the other hand, large current flow is observed in the third diode, indicating the occurrence of charge carrier spouting from the charge separation zone composed of Mg-doped Alq3 and V2O5.