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Light-Emitting Electrochemical Cells

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Applied Photochemistry

Part of the book series: Lecture Notes in Chemistry ((LNC,volume 92))

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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.

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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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Author information

Authors and Affiliations

  1. Institute of Lighting and Energy Photonics, National Chiao Tung University, Tainan, 71150, Taiwan

    Chia-Yu Cheng & Hai-Ching Su

Authors
  1. Chia-Yu Cheng
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  2. Hai-Ching Su
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Corresponding author

Correspondence to Hai-Ching Su .

Editor information

Editors and Affiliations

  1. Dipartimento di Chimica "Giacomo Ciamician", Università di Bologna, Bologna, Italy

    Giacomo Bergamini

  2. Dipartimento di Chimica "Giacomo Ciamician", Università di Bologna, Bologna, Italy

    Serena Silvi

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Cheng, CY., Su, HC. (2016). Light-Emitting Electrochemical Cells. In: Bergamini, G., Silvi, S. (eds) Applied Photochemistry. Lecture Notes in Chemistry, vol 92. Springer, Cham. https://doi.org/10.1007/978-3-319-31671-0_4

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