Multi-layered organic light-emitting diode fabrication using low molecular weight materials by electrospray method

Yasushi Koishikawa, Hiroshi Miyazaki, Masayuki Yahiro, Chihaya Adachi

Research output: Contribution to journalArticle

21 Citations (Scopus)

Abstract

Active technology development efforts to improve the productivity of organic light emitting diode (OLED) fabrication using wet processes based on ink-jet technology have been conducted by taking advantage of the low cost and large area processability of organic materials.However, OLEDs formed by conventional wet processes have been unable to reproduce the high performance levels of OLEDs that were mass-produced by dry processes based on vacuum deposition.We have therefore focused on the electrospray (ES) method as a potential fabrication technology.In this paper, we report on a multilayer thin-film fabrication process with low molecular-weight materials using an ES method that allows atomization of the organic materials by Coulomb repulsion and successive adhesion of solid-state multi-layered thin films.We demonstrate OLED fabrication by this ES method and the characteristics of the resulting devices.

Original languageEnglish
Pages (from-to)527-532
Number of pages6
JournalThin Solid Films
Volume545
DOIs
Publication statusPublished - Oct 31 2013

Fingerprint

Organic light emitting diodes (OLED)
low molecular weights
light emitting diodes
Molecular weight
Fabrication
fabrication
organic materials
Vacuum deposition
Thin films
vacuum deposition
Multilayer films
atomizing
inks
Atomization
thin films
productivity
Ink
adhesion
Adhesion
Productivity

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Metals and Alloys
  • Materials Chemistry

Cite this

Multi-layered organic light-emitting diode fabrication using low molecular weight materials by electrospray method. / Koishikawa, Yasushi; Miyazaki, Hiroshi; Yahiro, Masayuki; Adachi, Chihaya.

In: Thin Solid Films, Vol. 545, 31.10.2013, p. 527-532.

Research output: Contribution to journalArticle

Koishikawa, Yasushi ; Miyazaki, Hiroshi ; Yahiro, Masayuki ; Adachi, Chihaya. / Multi-layered organic light-emitting diode fabrication using low molecular weight materials by electrospray method. In: Thin Solid Films. 2013 ; Vol. 545. pp. 527-532.
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