论文题目：Rupture stress of liquid metal nanoparticles and their applications in stretchable conductors and dielectrics

论文作者：Yang Liu, Xinyi Ji*, Jiajie Liang*

发表期刊：npj Flexible Electronics, 5(1), 11, 2021    

Abstract： 

Few works had systematically investigated the relationship between the rupturestressof the oxide shell and the diameter ofliquidmetalnanoparticles (LMNPs). Here, we fabricated a series of  elastomer/LMNPs composites, which were based on various polyurethanes  with different shore hardness and LMNPs with different diameters, to  systematically study the rupturestressof LMNPs. We established a reliable and guidable relationship between the stress-strain curves of elastomers with different shore hardness and rupturestressof LMNPs with various diameters by both experiments and numerical calculations. Based on this guidance, we can facilely prepare stretchableconductors with remarkable stretchability and conductivity (i.e., 24,130 S center dot cm(-1) at 500% strain) and stretchabledielectrics with excellent stretchability and permittivity (i.e., dielectric constant of 76.8 with 580% strain) through controlling the shore hardness of elastomers and diameter of LMNPs. This work will facilitate the systematic study of LMNPs and expand their use instretchable electronics.