Perovskite/Organic Light-Emitting Materials and Devices

Dear Colleagues,

Organic light-emitting diodes (OLEDs) are considered a next-generation display and solid-state lighting technology with many attractive characteristics, such as their ability to self-emit, their vivid color, the face that they are thin, light, and flexible factor, their printability, fast response time, wide viewing angle, etc. Recently, perovskite materials have also gradually emerged in the field of light-emitting diodes because of their extremely low driving voltages, emission with very narrow full width at half maximum, lower manufacturing cost thanks to solution processing, etc.

Today, there are still a number of great challenges for OLEDs to be used in harsh working conditions, such as a long lifetime requirement (~60,000 hours) for TV display, high brightness requirement (~ 3000 nit) for augmented reality (AR) and virtual reality (VR) displays, and high power-efficiency requirement (~100 lm/W) for general lighting. Perovskite light-emitting diodes (PeLEDs) also suffer from poor stability, in which the general operation lifetime may be just hours or even a few minutes.

Thus, there are still many materials, devices, and processing developments worthy of deeper investigation. This Special Issue aims to cover recent developments in OLEDs and PeLEDs. Contributions to this Special Issue can be full research articles, short communications, and reviews focusing on recent advancements in OLEDs or PeLEDs. 

• Functional materials
  • Charge–transport materials
  • Host and emissive materials
  • Ink materials for printing
  • Perovskite-related materials
  • Transparent metallic or oxide-based electrodes
  • Flexible substrates and electrodes
• Device architectures
  • Tandem structures
  • Exciplex structures
  • TADF emissive mechanism
  • Light outcoupling structures
  • Electrode engineering
  • Surface and interface modification
• Encapsulation
  • Stress-release materials
  • Thin film encapsulation
• Processing techniques
  • Special vacuum deposition technique
  • Inkjet printing, slot-die coating, dip-coating techniques, etc.

Prof. Dr. Roy Man-Keung Fung
Guest Editor

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