Interfacial charge transfer and charge generation in organic electronic devices

Toshinori Matsusima, Guang He Jin, Yoshihiro Kanai, Tomoyuki Yokota, Seiki Kitada, Toshiyuki Kishi, Hideyuki Murata

Research output: Contribution to journalArticle

56 Citations (Scopus)

Abstract

We have recently proposed that improvement of device performance using a buffer layer of molybdenum trioxide (MoO3) originates from interfacial charge generation at an interface of MoO3 and an organic hole-transport layer [17]. 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 MoO3 layer can provide the evidence of the charge generation.

Original languageEnglish
Pages (from-to)520-528
Number of pages9
JournalOrganic Electronics
Volume12
Issue number3
DOIs
Publication statusPublished - Jan 1 2011

Fingerprint

Charge transfer
Current density
charge transfer
Infrared absorption
Composite films
Buffer layers
Electric space charge
electronics
Molybdenum
Absorption spectra
current density
Diamines
Electric potential
diamines
infrared absorption
molybdenum
space charge
infrared spectra
buffers
absorption spectra

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Biomaterials
  • Chemistry(all)
  • Condensed Matter Physics
  • Materials Chemistry
  • Electrical and Electronic Engineering

Cite this

Interfacial charge transfer and charge generation in organic electronic devices. / Matsusima, Toshinori; Jin, Guang He; Kanai, Yoshihiro; Yokota, Tomoyuki; Kitada, Seiki; Kishi, Toshiyuki; Murata, Hideyuki.

In: Organic Electronics, Vol. 12, No. 3, 01.01.2011, p. 520-528.

Research output: Contribution to journalArticle

Matsusima, T, Jin, GH, Kanai, Y, Yokota, T, Kitada, S, Kishi, T & Murata, H 2011, 'Interfacial charge transfer and charge generation in organic electronic devices', Organic Electronics, vol. 12, no. 3, pp. 520-528. https://doi.org/10.1016/j.orgel.2011.01.001
Matsusima, Toshinori ; Jin, Guang He ; Kanai, Yoshihiro ; Yokota, Tomoyuki ; Kitada, Seiki ; Kishi, Toshiyuki ; Murata, Hideyuki. / Interfacial charge transfer and charge generation in organic electronic devices. In: Organic Electronics. 2011 ; Vol. 12, No. 3. pp. 520-528.
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