Related Experiment Video
Updated: Mar 27, 2026
07:44
Production and Characterization of Vacuum Deposited Organic Light Emitting Diodes
Published on: November 16, 2018
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Intrinsically stretchable organic light-emitting-diode with high brightness and stretchability via
Zhen Lu1,2, Jiaming Huang3, Qiong Liang1
1Department of Electrical and Electronic Engineering, Research Institute for Smart Energy (RISE); Photonic Research Institute (PRI), The Hong Kong Polytechnic University, Hung Hom, Kowloon. Hong Kong, China.
Light, Science & Applications
|March 25, 2026
Summary
Researchers developed intrinsically stretchable organic light-emitting diodes (is-OLEDs) using a novel emissive layer strategy and advanced electrodes. These is-OLEDs achieve record luminance and high stretchability for next-generation wearable electronics.
Area of Science:
- Materials Science
- Organic Electronics
- Wearable Technology
Background:
- Intrinsically stretchable organic light-emitting diodes (is-OLEDs) are crucial for wearable electronics due to their deformation endurance.
- Challenges include limited material ductility and low-quality stretchable transparent electrodes (STEs).
Purpose of the Study:
- To enhance performance and stretchability of is-OLEDs.
- To investigate an elastic-microphase-engineered emissive layer strategy.
- To develop improved STEs for is-OLED applications.
Main Methods:
- Incorporated styrene-butadiene-styrene block copolymer derivative elastomers into a green polyfluorene emissive polymer.
- Investigated elastomer-emissive polymer miscibility for microphase separation control.
- Developed a dual-embedded hybrid electrode (PAT) STE by pre-burying conductive polymer PH1000.
Main Results:
- Achieved record luminance of 33,443 cd/m².
- Demonstrated stretchability up to 120%.
- Maintained ~90% luminance after 100 cycles of 15% strain dynamic stretching.
Conclusions:
- The elastic-microphase-engineered emissive layer strategy significantly improves is-OLED performance and stretchability.
- The developed PAT STE offers superior conductivity, stretchability, and stability.
- These advancements pave the way for advanced wearable electronic applications using is-OLEDs.
