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Light-Emitting Electrochemical Cells

  • Chia-Yu Cheng
  • Hai-Ching SuEmail author
Chapter
Part of the Lecture Notes in Chemistry book series (LNC, volume 92)

Abstract

Recently, solid-state light-emitting electrochemical cells (LECs) have attracted intense attention due to simple device structure, low operation voltage and high power efficiency. Compatibility with simple solution processes and superior device efficiency are beneficial in display and lighting applications. In this chapter, the working mechanism of LECs is introduced and some previous important works on LECs, such as LECs with various emission colors, topics on device lifetime and turn-on time of LECs and novel device technologies on LEC device structures are reviewed. Finally, conclusions and outlooks for LECs are discussed.

Keywords

Ionic Liquid High Occupied Molecular Orbital Power Efficiency Emissive Layer Iridium Complex 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Abbreviations

CCL

Color conversion layer

CIE

Commission Internationale de L’Eclairage

CRI

Color rendering index

ECD

Electrochemical doping

ED

Electrodynamical

EDLs

Electric double layers

EL

Electroluminescence

EQE

External quantum efficiency

FWHM

Full width at half maximum

HOMO

Highest occupied molecular orbital

iTMCs

Ionic transition metal complexes

LECs

Light-emitting electrochemical cells

LUMO

Lowest unoccupied molecular orbital

MLCT

Metal-to-ligand charge transfer

NIR

Near-infrared

OLEDs

Organic light -emitting diodes

PLECs

Polymer light -emitting electrochemical cells

PLQY

Photoluminescent quantum yield

SKPM

Scanning Kelvin probe microscopy

WLEC

White light -emitting electrochemical cells

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Copyright information

© Springer International Publishing Switzerland 2016

Authors and Affiliations

  1. 1.Institute of Lighting and Energy PhotonicsNational Chiao Tung UniversityTainanTaiwan

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