Yu Shunlin, Liu Chuan, Han Songjia
State Key Laboratory of Optoelectronic Materials and Technologies and Guangdong Province Key Laboratory of Display Material and Technology, School of Electronics and Information Technology, Sun Yat-Sen University, Guangzhou 510275, China.
College of Electronic Engineering, South China Agricultural University, Guangzhou 510642, China.
Nanomaterials (Basel). 2022 May 6;12(9):1580. doi: 10.3390/nano12091580.
Nanoporous gold (NPG) plays an important role in high-performance electronic devices, including sensors, electrocatalysis, and energy storage systems. However, the traditional fabricating methods of NPG, dealloying technique or electrochemical reduction technique, usually require complex experimental procedures and sophisticated equipment. In this work, we reported a unique and simple method to prepare the NPG through a low-temperature solution process. More importantly, the structure of the NPG-based electrode can be further controlled by using the post-treatment process, such as thermal treatment and plasma treatment. Additionally, we also demonstrate the application of the resulting NPG electrodes in flexible photodetectors, which performs a higher sensitivity than common planar photodetectors. We believe that our work opens a possibility for the nanoporous metal in future electronics that is flexible, large scale, with facile fabrication, and low cost.
纳米多孔金（NPG）在高性能电子器件中发挥着重要作用，这些器件包括传感器、电催化和储能系统。然而，NPG的传统制造方法，如脱合金技术或电化学还原技术，通常需要复杂的实验程序和精密的设备。在这项工作中，我们报道了一种通过低温溶液法制备NPG的独特而简单的方法。更重要的是，基于NPG的电极结构可以通过后处理工艺进一步控制，如热处理和等离子体处理。此外，我们还展示了所得NPG电极在柔性光电探测器中的应用，该探测器比普通平面光电探测器具有更高的灵敏度。我们相信，我们的工作为未来具有柔性、大规模、易于制造和低成本的纳米多孔金属电子器件开辟了可能性。
