Efficiently alternating current driven tandem organic light-emitting devices with (Ag/4,7-diphenyl-1,10-phenanthroline)n interconnecting layers

Alternating current (AC) driven tandem organic light-emitting devices (OLEDs) in which an invert unit is connected to a normal unit with [Ag/4,7-diphenyl-1,10-phenanthroline (Bphen)]n interconnecting layers (ILs) are demonstrated. The current-voltage and capacitance-voltage characteristics of differ...

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Veröffentlicht in:Applied physics letters 2017-09, Vol.111 (10)
Hauptverfasser: Zhang, Xiang, Liu, Shihao, Zhang, Yaqian, Peng, Xiaomei, Yin, Maojun, Zhang, Letian, Xie, Wenfa
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Sprache:eng
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Zusammenfassung:Alternating current (AC) driven tandem organic light-emitting devices (OLEDs) in which an invert unit is connected to a normal unit with [Ag/4,7-diphenyl-1,10-phenanthroline (Bphen)]n interconnecting layers (ILs) are demonstrated. The current-voltage and capacitance-voltage characteristics of different devices with or without ILs demonstrated that (Ag/Bphen)n ILs possess excellent charge generation and electron injection abilities. Thus, (Ag/Bphen)n ILs could offer sufficient electrons for two units to realize radiation-recombination under AC bias. Efficient AC-driven OLEDs in which the color and brightness can be tuned independently by changing the AC bias are achieved.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.5001842