| Title | Inkjet-Printed Xerogel Scaffolds Enabled Room-Temperature Fabrication of High-Quality Metal Electrodes for Flexible Electronics |
| Authors | Wang, Shuaichen Gao, Yuan Huang, Qiyao Guo, Xuyun Yang, Anneng Zhang, Yaokang Zhuang, Qiuna Chen, Dongdong Chen, Lina Ju, Xin Hu, Hong Zhang, Shengdong Zhu, Ye Yan, Feng Zheng, Zijian |
| Affiliation | Hong Kong Polytech Univ, Inst Text & Clothing, Lab Adv Interfacial Mat & Devices, Hong Kong, Peoples R China Hong Kong Polytech Univ, Dept Appl Phys, Kowloon, Hong Kong, Peoples R China Peking Univ, Peking Univ Shenzhen Grad Sch, Sch Elect & Comp Engn, Shenzhen 518055, Peoples R China Hong Kong Polytech Univ, Res Inst Smart Energy, Res Inst Intelligent Wearable Syst, Hong Kong, Peoples R China |
| Keywords | MORPHOLOGIES HARDNESS SENSOR |
| Issue Date | Jun-2022 |
| Publisher | ADVANCED FUNCTIONAL MATERIALS |
| Abstract | Inkjet-printed metal electrodes with desirable morphologies and electrical properties are indispensable cornerstones for printable and flexible electronics. However, methods to fabricate metal electrodes nowadays mostly request the sintering of printed metal particles, which not only will easily damage heat-sensitive plastic substrates, but also is difficult to achieve a smooth, neat, and highly adhesive electrode structure. Herein, a room-temperature, solution-processable copper (Cu) electrode is demonstrated to overcome the above issues. The key is to inkjet print a stable xerogel scaffold with high porosity, good uniformity, and smoothness for growing high-quality Cu via electroless deposition. Xerogel-based Cu electrodes exhibit a bi-layer architecture, consisting of an upper thin-film Cu (with an electrical conductivity of approximate to 1.2 x 10(7) S m(-1)) and a bottom Cu-polymer interpenetrated network. The electrodes show an excellent uniformity, surface smoothness, high interfacial energy to the plastic substrates (690-970 mJ m(-2)), and good flexibility. Taking these merits, the electrodes can be patterned onto various plastic substrates and fabricate all-solution-processed electronic devices such as organic thin-film transistors and organic electrochemical transistors with stable electrical performance. |
| URI | http://hdl.handle.net/20.500.11897/647683 |
| ISSN | 1616-301X |
| DOI | 10.1002/adfm.202203730 |
| Indexed | EI SCI(E) |
| Appears in Collections: | 深圳研究生院待认领 |
