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Multimodal Bioinspired Self-Healing Composites Enabling Durable and High-Efficiency Wearable Perovskite
Loganathan Veeramuthu1, Yu-Chen Wang1, Chun-Tse Tsai1
1Institute of Organic & Polymeric Materials, Department of Molecular Science & Engineering, National Taipei University of Technology, Taipei, Taiwan.
Advanced Science (Weinheim, Baden-Wurttemberg, Germany)
|August 10, 2026
Summary
This study introduces a bioinspired self-healing polymer (SHP) for durable, repairable optoelectronic devices. The advanced SHP composite offers rapid, autonomous healing and environmental resilience, enhancing the lifespan of wearable electronics.
Area of Science:
- Materials Science
- Polymer Chemistry
- Optoelectronics
Background:
- Wearable optoelectronic devices face limitations in operational lifespan due to mechanical damage and environmental factors.
- Current encapsulation methods lack autonomous repair capabilities, hindering real-world applications.
- There is a need for advanced materials that can autonomously repair damage and withstand harsh conditions.
Purpose of the Study:
- To develop a bioinspired self-healing polymer (SHP) composite for enhanced durability in optoelectronic devices.
- To investigate the self-healing properties, mechanical performance, and environmental resilience of the novel SHP.
- To evaluate the performance of SHP when integrated into light-emitting diodes (LEDs) and perovskite-based devices.
Main Methods:
- A self-healing polymer (SHP) composite was designed, mimicking butterfly wings with a cooperative network of hydrogen bonds, disulfide exchange, and π-π interactions.
- The SHP's mechanical properties (stretchability, toughness) and self-healing efficiency were tested under various conditions (water, PBS, low temperature).
- SHP was integrated into the emissive layers of light-emitting diodes (LEDs) and perovskite-based devices to assess device performance and durability through bending tests.
Main Results:
- The SHP exhibited outstanding stretchability (4950%) and toughness (30.47 MJ m⁻³), with rapid self-healing at room temperature.
- High healing efficiencies were recorded: 98% in water, 89% in PBS, and 84% at -5°C.
- SHP-based LEDs achieved high luminance (9598 cd m⁻²) and EQE (10.52%), while perovskite devices reached peak EQE of 8.43%.
- Encapsulated devices maintained 96% luminance after 400 bending cycles, demonstrating excellent crack resistance and protection against moisture.
Conclusions:
- The bioinspired SHP composite provides a robust solution for enhancing the durability and lifespan of wearable optoelectronic devices.
- The material's autonomous self-healing and environmental resilience significantly reduce the risk of mechanical failure and electronic waste.
- This strategy paves the way for autonomous, repairable optoelectronic systems in applications like wearable displays and smart textiles.
