A flexible organic active matrix circuit fabricated using novel organic thin film transistors and organic light-emitting diodes

Gerardo Gutiérrez-Heredia, Luis A. González, Husam N. Alshareef, Bruce E. Gnade, Manuel Angel Quevedo Quevedo-López

Research output: Contribution to journalArticlepeer-review

10 Scopus citations

Abstract

We present an active matrix circuit fabricated on plastic (polyethylene naphthalene, PEN) and glass substrates using organic thin film transistors and organic capacitors to control organic light-emitting diodes (OLEDs). The basic circuit is fabricated using two pentacene-based transistors and a capacitor using a novel aluminum oxide/parylene stack (Al2O3/ parylene) as the dielectric for both the transistor and the capacitor. We report that our circuit can deliver up to 15 μA to each OLED pixel. To achieve 200 cd m-2 of brightness a 10 μA current is needed; therefore, our approach can initially deliver 1.5× the required current to drive a single pixel. In contrast to parylene-only devices, the Al2O 3/parylene stack does not fail after stressing at a field of 1.7 MV cm-1 for >10 000 s, whereas 'parylene only' devices show breakdown at approximately 1000 s. Details of the integration scheme are presented. © 2010 IOP Publishing Ltd.
Original languageEnglish (US)
Pages (from-to)115001
JournalSemiconductor Science and Technology
Volume25
Issue number11
DOIs
StatePublished - Oct 4 2010

Bibliographical note

KAUST Repository Item: Exported on 2020-10-01

ASJC Scopus subject areas

  • Materials Chemistry
  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering
  • Condensed Matter Physics

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