ITO-free flexible transparent conductive electrodes for organic and hybrid light emitting diodes

Emil J. W. List-Kratochvil

doi:10.1117/12.2568159

20 August 2020 ITO-free flexible transparent conductive electrodes for organic and hybrid light emitting diodes

Emil J. W. List-Kratochvil

Proceedings Volume 11473, Organic and Hybrid Light Emitting Materials and Devices XXIV; 114730K (2020) https://doi.org/10.1117/12.2568159
Event: SPIE Organic Photonics + Electronics, 2020, Online Only

Abstract

Organic light emitting diodes (OLEDs) are promising candidates for the lighting revolution of the 21st century. Along with the ever-ongoing quest for stable emitter materials, strategies for improved out-coupling of light, cost- and energy efficient low temperature processing in particular ITO-free flexible transparent conductive electrodes need further attention to boost OLED technologies, because ITO fails to be mechanically stabile upon bending and the scarcity of indium translates into high and volatile prices. In this contribution we report on the design, realisation and characterization of a number of different low temperature processes for printed and spray coated TCE on flexible low cost substrates such as polyethylene terephthalate (PET), based on printed Ag and Cu nano-particle, particle-free and nano-wire inks. We will show that the attained highly ITO-free electrodes on PET show superior optical, electrical and mechanical performance as compared to PET/ITO samples.

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Citation Download Citation

Emil J. W. List-Kratochvil "ITO-free flexible transparent conductive electrodes for organic and hybrid light emitting diodes", Proc. SPIE 11473, Organic and Hybrid Light Emitting Materials and Devices XXIV, 114730K (20 August 2020); https://doi.org/10.1117/12.2568159

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KEYWORDS

Organic light emitting diodes

Electrodes

Light emitting diodes

Light sources and illumination

Positron emission tomography

Oxides

Resistance

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