SEMINAR

Stretchable and printable conductors play a crucial role in the design of soft electronics, textile electronics and the evolution of wearable technology. We established an extremely stretchable and printable conductor with high conductivity and durable stretching cycling through the incorporation of liquid metal. We extended the design into electroactive composites based on urethane matrix with metal flakes that has led to the formation of printable stretchable conductors on textiles that can be activated by sweat. A sweat-activated battery was demonstrated with the stretchable textile conductor.[1] In order to realize stretchable ionic conductors that are self-healable and thermally stable, organohydrogel based on chemically linked ionic side chain to the polymeric gel matrix has been designed and synthesized. Inkjet printing of the organohydrogel on an elastomer can lead to high interfacial toughness. Applications of the electroactive gel composite in sensing, actuation and controllable manipulation for soft electronics will be illustrated.[2]

References:

1. Lv, G. Thangavel, Y. Li, J. Xiong, D. Gao, J. Ciou, M. W. M. Tan, I. Aziz, S. Chen, J. Chen, X. Zhou, W. C. Poh, P. S. Lee, Sci Adv. 2021, 7(29), eabg8433.
2. Gao, G. Thangavel, J. Lee, J. Lv, Y. Li, J-H Ciou, J. Xiong, P. S. Lee, Nat. Comm. 2023, 14(1), 1990.