This concise volume provides an introduction to the working principles, design, and construction of air-stable inverted organic light-emitting diodes (OLEDs), leading to the realization of practical flexible organic optoelectronics for displays and lighting. The first part of the book considers the requirements for air stability of OLED devices, the challenges involved in achieving air stability and the history of approaches to the problem. It goes on to describe hybrid organic-inorganic LEDs and their carrier injection mechanism, and summarises the early phase of inverted OLED development. The third part focuses on the electron injection layer and interfacial engineering, and finally the book describes the inverted OLED and the carrier injection mechanism in recently-developed devices. The book will be of interest to students and researchers working on practical organic optoelectronics.

Autorentext

Dr Katsuyuki Morii is a principal researcher with the Research Center of Nippon Shokubai Co. Ltd., Japan, and also concurrently serves as an invited professor at Osaka University, Japan. As a visiting researcher at EPFL, Switzerland, he invented the origin of this issue in 2005. Since that time, he is concentrating on air-stable organic electronic devices.

Dr Hirohiko Fukagawa is a researcher with the Science and Technology Research Laboratories of the Japan Broadcasting Corporation (NHK). His research interests include solid state physics, electronic engineering, organic optoelectronics and flexible displays.

Inhalt

Chapter 1: Air stability for organic light-emitting diodes (Katsuyuki Morii)

Abstract

1.1 Comparison with OLEDs with LEDs

1.2 Important issues for OLEDs

Conclusion

Chapter 2: Hybrid organic-inorganic light-emitting diode (Katsuyuki Morii) Abstract

2.1 First hybrid organic-inorganic light-emitting diode (HOILED)

2.2 Metal oxide layer on the cathode side for HOILEDs

2.2.1 Zinc oxide

2.2.2 Wide-band-gap metal oxides

2.3 Initial modification of surface of metal oxide on the cathode side

Conclusion

Chapter 3: Interfacial engineering by introducing an interlayer (Hirohiko Fukagawa)

Abstract

3.1 Self-assembled monolayers

3.2 Ionic species

3.3 Polyethylenimine ethoxylated (PEIE) and branched polyethylenimine (PEI)

3.4 Other amine derivatives

3.5 Novel metal oxides and electrides

3.6 Solution-processed boron compounds for operationally stable inverted OLEDs

Conclusion

Chapter 4: Carrier Injection Mechanism (Hirohiko Fukagawa)

Abstract

4.1 Hole injection in conventional OLEDs

4.2 Electron injection mechanism in inverted OLEDs 4.3 Hole injection mechanism in inverted OLEDs (Katsuyuki Morii)

4.3.1 Organic/inorganic layer and inorganic/organic layer 4.3.2 M...