Skip to main content
SpringerLink
Log in
Book cover

Device Architecture and Materials for Organic Light-Emitting Devices

Targeting High Current Densities and Control of the Triplet Concentration

  • Book
  • © 2011

Overview

Authors:
  1. Sarah Schols

    1. , Large Area Electronics (LAE), Imec, Leuven, Belgium

    View author publications

    You can also search for this author in PubMed   Google Scholar

  • A concise introduction gives an overview of the state-of-the-art organic light-emitting devices and highlights the challenges that have to be overcome to achieve electrically pumped lasing
  • New device and material concepts for organic light-emitting devices are presented
  • A chapter discussing the prospects of the proposed concepts for the realization of electrically pumped lasers
  • Includes supplementary material: sn.pub/extras

This is a preview of subscription content, log in via an institution to check access.

Access this book

Log in via an institution
eBook USD 84.99
Price excludes VAT (USA)
  • Available as EPUB and PDF
  • Read on any device
  • Instant download
  • Own it forever
Softcover Book USD 109.99
Price excludes VAT (USA)
  • Compact, lightweight edition
  • Dispatched in 3 to 5 business days
  • Free shipping worldwide - see info
Hardcover Book USD 109.99
Price excludes VAT (USA)
  • Durable hardcover edition
  • Dispatched in 3 to 5 business days
  • Free shipping worldwide - see info

Tax calculation will be finalised at checkout

Other ways to access

Licence this eBook for your library

Institutional subscriptions

Table of contents (8 chapters)

  1. Front Matter

    Pages I-XV
    Download chapter PDF

  2. Introduction

    • Sarah Schols
    Pages 1-32

  3. Materials and Experimental Techniques

    • Sarah Schols
    Pages 33-48

  4. Organic Light-Emitting Diodes with Field-Effect Electron Transport

    • Sarah Schols
    Pages 49-63

  5. Devices Based on Diperfluorohexyl-quaterthiophene Derivatives

    • Sarah Schols
    Pages 65-79

  6. Control of the Triplet Concentration in Organic Light-Emitting Devices

    • Sarah Schols
    Pages 81-95

  7. Triplet-Emitter Doped Organic Materials

    • Sarah Schols
    Pages 97-115

  8. Value of OLEDs with Field-Effect Electron Transport for Lasing Applications

    • Sarah Schols
    Pages 117-134

  9. General Conclusions and Future Outlook

    • Sarah Schols
    Pages 135-138

  10. Back Matter

    Pages 139-154
    Download chapter PDF
Back to top

Keywords

About this book

Device Architecture and Materials for Organic Light-Emitting Devices focuses on the design of new device and material concepts for organic light-emitting devices, thereby targeting high current densities and an improved control of the triplet concentration. A new light-emitting device architecture, the OLED with field-effect electron transport, is demonstrated. This device is a hybrid between a diode and a field-effect transistor. Compared to conventional OLEDs, the metallic cathode is displaced by one to several micrometers from the light-emitting zone, reducing optical absorption losses. The electrons injected by the cathode accumulate at an organic heterojunction and are transported to the light-emission zone by field-effect. High mobilities for charge carriers are achieved in this way, enabling a high current density and a reduced number of charge carriers in the device. Pulsed excitation experiments show that pulses down to 1 µs can be applied to this structure without affecting the light intensity, suggesting that pulsed excitation might be useful to reduce the accumulation of triplets in the device. The combination of all these properties makes the OLED with field-effect electron transport particularly interesting for waveguide devices and future electrically pumped lasers. In addition, triplet-emitter doped organic materials, as well as the use of triplet scavengers in conjugated polymers are investigated.

Authors and Affiliations

  • , Large Area Electronics (LAE), Imec, Leuven, Belgium

    Sarah Schols

About the author

Sarah Schols was born on May 6, 1981, in Brugge, Belgium. She received her Master of Applied Science degree in electrical engineering (option nanotechnology) in July 2004 at the Katholieke Universiteit Leuven in Belgium. The topic of her master thesis was the fabrication of organic solar cells based on discotic liquid crystals.

Inspired by the challenges in organic electronics, she started her doctoral research in October 2004 at the Interuniversity Microelectronics Center (imec) to pursue her PhD degree at the Department of Electrical Engineering (ESAT) of the Katholieke Universiteit Leuven. Her doctoral research was funded by the Belgian Fund for Scientific Research (FWO) and focused on the design of new device architectures and material concepts for organic light-emitting devices. Currently, she is a Senior Researcher in the Large Area Electronics Department of imec.

Bibliographic Information

Publish with us

Policies and ethics

Back to top

Search

Navigation