Highly conductive and transient tracks based on silver flakes and a polyvinyl pyrrolidone composite

Su Ding; Qingfeng Cai; Jintao Mao; Fei Chen; Li Fu; Yanfei Lv; Shichao Zhao

doi:10.1039/d0ra06603f

Highly conductive and transient tracks based on silver flakes and a polyvinyl pyrrolidone composite

RSC Adv. 2020 Sep 7;10(55):33112-33118. doi: 10.1039/d0ra06603f.

Authors

Su Ding¹, Qingfeng Cai¹, Jintao Mao¹, Fei Chen¹, Li Fu¹, Yanfei Lv¹, Shichao Zhao¹

Affiliation

¹ College of Materials and Environmental Engineering, Hangzhou Dianzi University 310018 Hangzhou P. R. China dingsu@hdu.edu.cn zhaoshichao@hdu.edu.cn.

Abstract

Transient electronics have been widely researched to solve the electronic waste (E-waste) issue. Although various transient materials and devices have been reported, the fabrication technique for transient conductors always uses expensive sputtering or evaporation processes. In this study, a silver flake (AgF) and polyvinyl pyrrolidone (PVP) composite is prepared for conductive and transient tracks. The AgF/PVP composite tracks are highly conductive with a resistivity of 8.9 mOhm cm after sintering at 80 °C for only 3 minutes. Impressively, the AgF/PVP tracks disintegrate in water in 3 minutes due to the fast dissolution of the water-soluble PVP. The transient behavior of the AgF/PVP tracks has potential in transient electronics as demonstrated in a light emitting diode (LED) circuit and antenna.