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Surface plasmon-enhanced localized electric field in organic light-emitting diodes by incorporating silver nanoclusters

Authors
Journal
Applied Surface Science
0169-4332
Publisher
Elsevier
Volume
295
Identifiers
DOI: 10.1016/j.apsusc.2014.01.031
Keywords
  • Silver Nanoclusters
  • Localized Electric Field
  • Electron Injection

Abstract

Abstract The influence of silver nanoclusters (SNCs) on the performance of organic light-emitting diodes is investigated in this study. The SNCs are introduced between the electron-injection layer and cathode alumina by means of thermal evaporation, resulting that different absorption peaks of SNCs were formed. A higher luminance and electron-injection ability are obtained when the mean cluster size is 34nm. The surface-enhanced Raman scattering spectroscopy reveals that the localized electric field around the SNCs is enhanced, resulting in an increase in electron injection from cathode electrode.

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