A 3D liquid self-shaping strategy is reported for rapidly patterning materials over a series of compositions and accurately achieving micro- and nanoscale structures. The predesigned template selectively pins the droplet, and the surface energy minimization drives the self-shaping processing. The as-prepared 3D circuits assembled by silver nanoparticles carry a current of 208–448 μA at 0.01 V impressed voltage, while the 3D architectures achieved by two different quantum dots show noninterfering optical properties with feature resolution below 3 μm. This strategy can facilely fabricate micro-nanogeometric patterns without a modeling program, which will be of great significance for the development of 3D functional devices.
A spontaneous process is demonstrated to assemble nanoparticles into optimal interconnect, as natural systems spontaneously figuring out the shortest path. The optimal interconnect leads to a 65.9% decrease in electromagnetic interference, a 17.1% decrease in delay, and a 24.5% decrease in energy-delay. It will be of great significance for interconnect fabrication of versatile electronic circuits. ( Paper: Meng Su, Zhandong Huang, Yong Huang, Shuoran Chen, Xin Qian, Wenbo Li, Yifan Li, Weihua Pei, Hongda Chen, Fengyu Li,* and Yanlin Song*, Adv. Mater. 2016, DOI: 10.1002/adma.201605223.)