Friday, April 19, 2024

Stretchable And Durable Electroluminescent Devices

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Researchers made a super stretchy solid-state light-emitting device.

Light emitting technologies have advanced significantly, and we can see various emerging technologies in the field of photonics and displays as a result of these advancements. Researchers from South Korea have made a durable super-stretchable, twistable AC electroluminescent light emitter.

According to the Pusan National University, the secret is mechanically-reinforced ionogel conductors. 

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“We developed stretchable and durable conductive ionogels with a double-network structure, which is achieved by combining stretchable soft polymer network with stress-resistive hard polymer network,” said researcher Jinhwan Yoon.

The ionogel was used to fabricate the electroluminescent emitters, which continued to work despite stretching to 12x original length, bending, rolling and twisting. The emitters emit light over 1,000 stretch-release cycles, or at temperatures as high as 200°C.

“We believe that the future of electronics would be deformable and stretchable beyond simply flexible and bendable for wearable application,” said Yoon. “With the soft electrode platform we developed, it is expected that more development on wearable electronics can be boosted, thereby people can wear lots of unprecedented devices enabling them to monitor their motion and health condition.”

The paper ‘Super stretchable and durable electroluminescent devices based on double-network ionogels‘ has been published in the journal Advanced Materials.



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