Low-Cost Manufacturing of Bioresorbable Conductors by Evaporation-Condensation-Mediated Laser Printing and Sintering of Zn Nanoparticles
Low-Cost Manufacturing of Bioresorbable Conductors by Evaporation-Condensation-Mediated Laser Printing and Sintering of Zn Nanoparticles
复制标题
通过蒸发-冷凝介导的激光打印和烧结锌纳米粒子低成本制造生物可吸收导体
DOI：
10.1002/adma.201700172
复制
发表时间：
2017-07-12
影响因子：
29.4
通讯作者：
Pan, Heng
中科院分区：
文献类型：
--
作者：
Shou, Wan;Mahajan, Bikram K.;Pan, Heng
目前，生物可吸收电子设备主要通过复杂且昂贵的真空集成电路（IC）工艺制造。在此，报道了一种通过蒸发-冷凝介导的激光打印和锌纳米颗粒烧结在生物可吸收聚合物基底上低成本制造生物可吸收导体的方法。由于纳米颗粒表面存在氧化物，激光烧结锌纳米颗粒在技术上一直存在困难。为了规避表面氧化物，我们发现了一种通过在有限域内蒸发冷凝促进打印和烧结锌纳米粒子的新方法。印刷过程可以在周围环境中的低温基材上进行，从而可以轻松集成在卷对卷平台上，从而经济地制造生物可吸收电子产品。所制备的锌导体具有优异的导电性（约1.124 x 10(6) S m(-1)）、机械耐久性和水溶解性。应变片的成功演示证实了其在各种环保传感器和电路中的潜在应用。
Currently, bioresorbable electronic devices are predominantly fabricated by complex and expensive vacuum-based integrated circuit (IC) processes. Here, a low-cost manufacturing approach for bioresorbable conductors on bioresorbable polymer substrates by evaporation-condensation-mediated laser printing and sintering of Zn nanoparticle is reported. Laser sintering of Zn nanoparticles has been technically difficult due to the surface oxide on nanoparticles. To circumvent the surface oxide, a novel approach is discovered to print and sinter Zn nanoparticle facilitated by evaporation-condensation in confined domains. The printing process can be performed on low-temperature substrates in ambient environment allowing easy integration on a roll-to-roll platform for economical manufacturing of bioresorbable electronics. The fabricated Zn conductors show excellent electrical conductivity (approximate to 1.124 x 10(6) S m(-1)), mechanical durability, and water dissolvability. Successful demonstration of strain gauges confirms the potential application in various environmentally friendly sensors and circuits.