He Xingli, Zhang Jian, Wang Wenbo, Xuan Weipeng, Wang Xiaozhi, Zhang Qilong, Smith Charles G, Luo Jikui
College of Information Science and Engineering, Fujian University of Technology , Fuzhou 350118, China.
Cavendish Laboratory, University of Cambridge , JJ Thomson Avenue, Cambridge CB3 0HE, United Kingdom.
ACS Appl Mater Interfaces. 2016 May 4;8(17):10954-60. doi: 10.1021/acsami.5b10414. Epub 2016 Apr 22.
Egg albumen as the dielectric, and dissolvable Mg and W as the top and bottom electrodes are used to fabricate water-soluble memristors. 4 × 4 cross-bar configuration memristor devices show a bipolar resistive switching behavior with a high to low resistance ratio in the range of 1 × 10(2) to 1 × 10(4), higher than most other biomaterial-based memristors, and a retention time over 10(4) s without any sign of deterioration, demonstrating its high stability and reliability. Metal filaments accompanied by hopping conduction are believed to be responsible for the switching behavior of the memory devices. The Mg and W electrodes, and albumen film all can be dissolved in water within 72 h, showing their transient characteristics. This work demonstrates a new way to fabricate biocompatible and dissolvable electronic devices by using cheap, abundant, and 100% natural materials for the forthcoming bioelectronics era as well as for environmental sensors when the Internet of things takes off.
以蛋清作为电介质，可溶解的镁和钨分别作为顶部和底部电极来制造水溶性忆阻器。4×4交叉阵列结构的忆阻器器件呈现出双极电阻开关行为，高阻与低阻之比在1×10²至1×10⁴范围内，高于大多数其他基于生物材料的忆阻器，且保持时间超过10⁴秒而无任何劣化迹象，证明了其高稳定性和可靠性。伴随着跳跃传导的金属细丝被认为是造成存储器件开关行为的原因。镁和钨电极以及蛋白膜在72小时内均可溶于水，显示出它们的瞬态特性。这项工作展示了一种新方法，即通过使用廉价、丰富且100%天然的材料来制造生物相容性和可溶解的电子器件，这对于即将到来的生物电子时代以及物联网兴起时的环境传感器而言都具有重要意义。
