Use of Trapezoid Pulse Voltage in Study of Transient Response of Organic Light-Emitting Diodes
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概要
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We investigated the transient electroluminescence (EL) and transient current (TC) of organic light-emitting diodes under a trapezoid electric pulse at a repetition rate of 1 kHz by changing the transient time of the pulse from $\sim$ ns to $\sim$ μs. Our data shows that the change in the transient time of the pulse not only affects the delay time and rise time of transient EL, but also changes the temporal evolution of TC. In addition, we studied the charge accumulation in the interfacial layer of organic films with different heterostructures, particularly the EL spike from a pulsed device with 1,4-Bis[2-[4-[N,N-di($ p$-tolyl)amino]phenyl]vinyl]benzene as a light-emitting layer at switch-off. The dynamic behavior of TC was further analyzed by computational approaches.
- 2005-01-15
著者
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Ichikawa Musubu
Department Of Functional Polymer Science Faculty Of Textile Science And Technology Shinshu Universit
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Wei Bin
Department Of Functional Polymer Science Faculty Of Textile Science And Technology Shinshu Universit
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Taniguchi Yoshio
Department Of Functional Polymer Science Faculty Of Textile Science And Technology Shinshu Universit
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Koyama Toshiki
Department Of Functional Polymer Science Faculty Of Textile Science And Technology Shinshu Universit
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Furukawa Kenji
Department Of Applied Life Science Faculty Of Engineering Sojo University
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Wei Bin
Department of Functional Polymer Science, Faculty of Textile Science & Technology, Shinshu University, 3-15-1 Tokida, Ueda, Nagano 386-8567, Japan
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Koyama Toshiki
Department of Functional Polymer Science, Faculty of Textile Science & Technology, Shinshu University, 3-15-1 Tokida, Ueda, Nagano 386-8567, Japan
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Taniguchi Yoshio
Department of Functional Polymer Science, Faculty of Textile Science & Technology, Shinshu University, 3-15-1 Tokida, Ueda, Nagano 386-8567, Japan
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Ichikawa Musubu
Department of Functional Polymer Science, Faculty of Textile Science & Technology, Shinshu University, 3-15-1 Tokida, Ueda, Nagano 386-8567, Japan
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