Direct probing of charge carrier behavior in multilayered organic light-emitting diode devices by time-resolved electric-field-induced sum-frequency generation spectroscopy

被引：8
|
作者：
Miyamae, Takayuki [1 ]
Takada, Noriyuki [1 ]
Ohata, Hiroshi [2 ]
Tsutsui, Tetsuo [2 ]
机构：
[1] AIST, Tsukuba, Ibaraki 3058565, Japan
[2] Chem Mat Evaluat & Res Base CEREBA, Tsukuba, Ibaraki 3058565, Japan
来源：
APPLIED PHYSICS EXPRESS | 2017年 / 10卷 / 10期
关键词：
THIN-FILMS; EFFECT TRANSISTORS; ALQ(3); ACCUMULATION; EFFICIENCY; MOBILITY;
D O I：
10.7567/APEX.10.102101
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Time-resolved electric-field-induced sum-frequency generation (EFI-SFG) spectroscopy was employed to study the charge behavior of multilayer organic light-emitting diodes (OLEDs). Through application of the square wave pulse bias to the OLEDs, compensation for the polarization charges in the electron transport layer and the generation of 4,4'-bis[N-(1-naphthyl-N-phenylamino)-biphenyl](alpha-NPD) cations were observed. When the pulse voltage was turned off, the a-NPD cations immediately disappeared, confirming that charge recombination occurs at the interfaces. We therefore concluded that time-resolved EFI-SFG is useful for directly probing the carrier behavior in OLEDs in addition to identifying the origin of the charge carriers present in OLEDs. (C) 2017 The Japan Society of Applied Physics
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页数：4
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  • [1] Probing buried organic layers in organic light-emitting diodes under operation by electric-field-induced doubly resonant sum-frequency generation spectroscopy
    Miyamae, T.
    Takada, N.
    Tautsui, T.
    [J]. APPLIED PHYSICS LETTERS, 2012, 101 (07)
  • [2] Operando measurements of top-emission organic light-emitting diode using electric-field-induced doubly resonant sum-frequency generation vibrational spectroscopy
    Morimoto, Kazunori
    Kaburagi, Tatsuya
    Ohata, Hiroshi
    Noh, Seonghee
    Miyamae, Takayuki
    [J]. ORGANIC ELECTRONICS, 2023, 120
  • [3] Direct observations of the charge behavior of a high-efficiency blue organic light-emitting diode under operating conditions using electric-field-induced doubly resonant sum-frequency-generation vibrational spectroscopy
    Sato, Tomoya
    Miyamae, Takayuki
    Ohata, Hiroshi
    Tsutsui, Tetsuo
    [J]. ORGANIC ELECTRONICS, 2019, 74 : 118 - 125
  • [4] Quantification of charge carrier density in organic light-emitting diodes by time-resolved electroluminescence
    Weichsel, Caroline
    Reineke, Sebastian
    Gather, Malte C.
    Leo, Karl
    Luessem, Bjoern
    [J]. ORGANIC LIGHT EMITTING MATERIALS AND DEVICES XVI, 2012, 8476
  • [5] Operando sum-frequency generation spectroscopy of high-efficiency OLEDs for probing the charge carrier behavior
    Miyamae, Takayuki
    Sato, Tomoya
    [J]. JOURNAL OF THE SOCIETY FOR INFORMATION DISPLAY, 2022, 30 (01) : 3 - 14
  • [6] Role of the Charge Generation Layer in Tandem Organic Light-Emitting Diodes Investigated by Time-Resolved Electroluminescence Spectroscopy
    Cheng, Yun-Min
    Lu, Hsin-Hung
    Jen, Tzu-Hao
    Chen, Show-An
    [J]. JOURNAL OF PHYSICAL CHEMISTRY C, 2011, 115 (02): : 582 - 588
  • [7] Probing and modeling of carrier motion in organic devices by electric-field-induced optical second-harmonic generation
    Iwamoto, Mitsumasa
    Manaka, Takaaki
    Taguchi, Dai
    [J]. JAPANESE JOURNAL OF APPLIED PHYSICS, 2014, 53 (10)
  • [8] In situ probe of interfacial electric field, catalyst structure and dynamics at electrode/liquid interfaces by time-resolved vibration sum-frequency generation spectroscopy
    Lian, Tianquan
    [J]. ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 2017, 253
  • [9] Study of carrier generation in titanyl phthalocyanine (TiOPc) by electric-field-induced quenching of integrated and time-resolved fluorescence
    Popovic, ZD
    Khan, MI
    Atherton, SJ
    Hor, AM
    Goodman, JL
    [J]. JOURNAL OF PHYSICAL CHEMISTRY B, 1998, 102 (04): : 657 - 663
  • [10] Analysis of Organic Light-Emitting Diode As a Maxwell-Wagner Effect Element by Time-Resolved Optical Second Harmonic Generation Measurement
    Taguchi, Dai
    Inoue, Shio
    Zhang, Le
    Li, Jun
    Weis, Martin
    Manaka, Takaaki
    Iwamoto, Mitsumasa
    [J]. JOURNAL OF PHYSICAL CHEMISTRY LETTERS, 2010, 1 (05): : 803 - 807
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