Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Video

Updated: Feb 25, 2026

Author Spotlight: Quantitative Characterization of Liquid Photosensitive Bioink Properties for Continuous Digital Light Processing Based Printing
04:32

Author Spotlight: Quantitative Characterization of Liquid Photosensitive Bioink Properties for Continuous Digital Light Processing Based Printing

Published on: April 14, 2023

1.7K

Ultrasound-Mediated Polymer Processing to Control Viscoelasticity for Inkjet-Printed Polymer LEDs.

Dongryul Lee1, Seongju Kim2, Yunji Lee1

  • 1Department of Materials Science and Engineering, Pohang University of Science and Technology (POSTECH), 77 Cheongam-Ro, Nam-gu, Pohang 37673, Republic of Korea.

ACS Applied Materials & Interfaces
|February 24, 2026
PubMed
Summary

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

3-Layer lung cancer invasion model for evaluating MMP-targeted anti-metastatic therapeutics.

Biomedical materials (Bristol, England)·2026
Same author

Molecular weight-dependent control of interfacial intermixing and dopant aggregation: a design principle for efficient solution-processed OLEDs.

Physical chemistry chemical physics : PCCP·2026
Same author

Mapping Practice-Based Signals of Generative AI in Psychiatric Care: Qualitative Study of Korean Psychiatrists' Experiences, Interpretations, and Implementation Priorities.

Journal of medical Internet research·2026
Same author

Virtual reality exposure therapy with graded interviewer reactions for public speaking anxiety in university students: a randomized controlled trial protocol.

Trials·2026
Same author

Interfacial Defect Passivation and Leakage Suppression for Enhanced Detectivity in Organic Photodetectors via Octadecylphosphonic Acid Self-Assembled Monolayers.

ACS omega·2026
Same author

Ascites protects against ferroptosis and enables the peritoneal growth of ovarian cancer.

Nature communications·2026
Same journal

Tuning Piezoelectricity and Pyroelectricity in Poly(vinylidene fluoride) through Ionic Liquid Anion-Size Directed Polymorph and Interface Engineering.

ACS applied materials & interfaces·2026
Same journal

Adsorption-Induced Ferroelectric Symmetry Breaking in Two-Dimensional CuInP<sub>2</sub>S<sub>6</sub>.

ACS applied materials & interfaces·2026
Same journal

Nanocomplexes Integrated into a Polymeric Bilayer Film Enhance Buccal Permeation of a GLP-1 Peptide Analogue.

ACS applied materials & interfaces·2026
Same journal

Correction to "Multienzyme Active Nanozyme for Efficient Sepsis Therapy through Modulating Immune and Inflammation Inhibition".

ACS applied materials & interfaces·2026
Same journal

A Programmable Perfusion Platform with Temperature Monitoring Achieves Multiscale Cryopreservation.

ACS applied materials & interfaces·2026
Same journal

Oral Delivery of Mesenchymal Stem Cell-Derived Extracellular Vesicles To Treat Intestinal Inflammation.

ACS applied materials & interfaces·2026
See all related articles
This summary is machine-generated.

Ultrasound processing reduces polymer ink viscosity for inkjet printing without additives. This enables stable droplet formation, leading to high-performance printed organic light-emitting diodes (OLEDs).

Area of Science:

  • Materials Science
  • Polymer Chemistry
  • Optoelectronics

Background:

  • Inkjet printing is ideal for high-resolution optoelectronics but hindered by polymer ink viscoelasticity.
  • High-molecular-weight conjugated polymers present challenges for reliable jetting due to their viscoelastic nature.

Purpose of the Study:

  • To develop a method for tuning the viscoelasticity of light-emitting polymer inks using ultrasound.
  • To improve the printability of polymer solutions for organic light-emitting diode (OLED) fabrication.

Main Methods:

  • Ultrasound-mediated processing was used to treat a light-emitting polymer (Super Yellow).
  • Sonochemical treatment selectively cleaved alkoxy side chains, confirmed by 1H NMR and GPC.
  • Rheological characterization assessed changes in ink elasticity and viscosity.
Keywords:
PPV copolymerinkjet printinglight-emitting diodessonochemical treatmentviscoelasticity

More Related Videos

Inkjet-printed Polyvinyl Alcohol Multilayers
05:11

Inkjet-printed Polyvinyl Alcohol Multilayers

Published on: May 11, 2017

13.1K
In situ Photo-rheology Monitors Viscoelastic Changes in Photo-responsive Polymer Networks
07:14

In situ Photo-rheology Monitors Viscoelastic Changes in Photo-responsive Polymer Networks

Published on: June 20, 2025

985

Related Experiment Videos

Last Updated: Feb 25, 2026

Author Spotlight: Quantitative Characterization of Liquid Photosensitive Bioink Properties for Continuous Digital Light Processing Based Printing
04:32

Author Spotlight: Quantitative Characterization of Liquid Photosensitive Bioink Properties for Continuous Digital Light Processing Based Printing

Published on: April 14, 2023

1.7K
Inkjet-printed Polyvinyl Alcohol Multilayers
05:11

Inkjet-printed Polyvinyl Alcohol Multilayers

Published on: May 11, 2017

13.1K
In situ Photo-rheology Monitors Viscoelastic Changes in Photo-responsive Polymer Networks
07:14

In situ Photo-rheology Monitors Viscoelastic Changes in Photo-responsive Polymer Networks

Published on: June 20, 2025

985

Main Results:

  • Treated polymer inks showed reduced molecular weight and entanglement density.
  • Markedly reduced elasticity and complex viscosity enabled stable droplet formation.
  • Inkjet-printed OLEDs achieved precise pixel definition and uniform emissive layers, with a 4.55% external quantum efficiency.

Conclusions:

  • Ultrasound-assisted rheological tuning is a generalizable strategy to overcome viscoelastic limitations in polymer inks.
  • This approach enhances the fabrication of high-resolution printed organic electronic devices.
  • The method opens new avenues for advanced printed OLED displays and other solution-processed electronics.