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Please use this identifier to cite or link to this item: http://hdl.handle.net/10119/9826

Title: Interfacial Charge Transfer and Charge Generation in Organic Electronic Devices
Authors: Matsushima, Toshinori
Jin, Guang-He
Kanai, Yoshihiro
Yokota, Tomoyuki
Kitada, Seiki
Kishi, Toshiyuki
Murata, Hideyuki
Keywords: Organic light-emitting diodes
Hole-only devices
Interfacial charge transfer and generation
Organic hole-transport materials and layers
Molybdenum trioxide
Issue Date: 2011-01-13
Publisher: Elsevier
Magazine name: Organic Electronics
Volume: 12
Number: 3
Start page: 520
End page: 528
DOI: 10.1016/j.orgel.2011.01.001
Abstract: We have recently proposed that improvement of device performance using a buffer layer of molybdenum trioxide (MoO_3) originates from interfacial charge generation at an interface of MoO_3 and an organic hole-transport layer [Appl. Phys. Lett. 95 (2009) 203306.]. However, there is no clear experimental evidence enough to support the charge generation in our recent report. In this study, from comparison of current density-voltage characteristics of organic hole-only devices and ultraviolet/visible/near-infrared absorption spectra of composite films, we can conclude that the interfacial charge generation surly occurs to realize space-charge-limited currents of a wide variety of organic hole-transport layers. Moreover, a drastic increase in current density of a bilayer device of n-type C60 and p-type N,N´-diphenyl-N,N´-bis(1-naphthyl)-1,1´-biphenyl-4,4´-diamine (α-NPD) by using a MoO_3 layer can provide the evidence of the charge generation.
Rights: NOTICE: This is the author's version of a work accepted for publication by Elsevier. Toshinori Matsushima, Guang-He Jin, Yoshihiro Kanai, Tomoyuki Yokota, Seiki Kitada, Toshiyuki Kishi, and Hideyuki Murata, Organic Electronics, 12(3), 2011, 520-528, http://dx.doi.org/10.1016/j.orgel.2011.01.001
URI: http://hdl.handle.net/10119/9826
Material Type: author
Appears in Collections:c10-1. 雑誌掲載論文 (Journal Articles)

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