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http://hdl.handle.net/10119/9826
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| 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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