Molecule-based monochromatic and polychromatic OLEDs with wet-process feasibility

Wet-process enables organic light-emitting diodes (OLEDs) to be made cost-effectively via a continuous process, such as roll-to-roll manufacturing. Initially, wet-process based OLEDs used to be fabricated with polymer-based emitters and/or host materials. However, small molecules that can be process...

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Bibliographic Details
Published in:Journal of materials chemistry. C, Materials for optical and electronic devices Materials for optical and electronic devices, 2018-11, Vol.6 (43), p.11492-11518
Main Authors: Jou, Jwo-Huei, Sahoo, Snehasis, Dubey, Deepak Kumar, Yadav, Rohit Ashok Kumar, Swayamprabha, Sujith Sudheendran, Chavhan, Sudam Dhudaku
Format: Article
Language:English
Subjects:
Commercialization
Diodes
Emitters
Feasibility studies
Molecular weight
Organic light emitting diodes
Service life assessment
Thickness
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Summary:Wet-process enables organic light-emitting diodes (OLEDs) to be made cost-effectively via a continuous process, such as roll-to-roll manufacturing. Initially, wet-process based OLEDs used to be fabricated with polymer-based emitters and/or host materials. However, small molecules that can be processed using a wet-process are more promising for commercialization due to easier control over their molecular weight, purification, solution viscosity, layer thickness, and uniformity. We have hence reviewed herein (i) what constitutes the essential materials for wet-process feasible OLEDs, (ii) applicable wet-process technologies, and (iii) reported wet-processed mono- and polychromatic OLED devices with sound efficiency performance. And last, but not least, we have pointed out the most critical challenges that wet-processed electronics including OLED must face before gaining sufficient ground for competition and turning into disruptive technology. These include issues such as multiple-layer feasibility, film integrity, film forming capability, and device lifetime. Wet-process enables organic light-emitting diodes (OLEDs) to be made cost-effectively via a continuous process, such as roll-to-roll manufacturing.
ISSN:2050-7526
2050-7534
DOI:10.1039/c8tc04203a