Ultrafast Growth of Large 2D Silver Nanosheets by Highly Ordered Biological Template at Air/Gel Interface

作者：Jang Hyung Seok; Seong Baekhoon; Zang Xining; Lee Hyungdong; Bae Jin Woo; Cho Dae Hyun; Kao Emmeline; Yang Chen; Kang Giho; Liu Yumeng; Park Hyun Sung; Byun Doyoung; Lin Liwei

来源：Advanced Materials Interfaces, 2018, 5(10): 1701491.

DOI：10.1002/admi.201701491

• 2D nanostructure
• flexible electrode
• printed electronics
• self-assembly
• silver nanosheet

The growth of large and high-quality 2D nanomaterials is challenging due to the formation of defects from dislocations, disinclinations, and symmetry-breaking instabilities. In this study it is demonstrated that biological template can be utilized to align the molecular orientation for large grain size in the synthesis of the high-quality 2D silver nanostructure. The solvent assisted multilayering phenomenon of hydrogel forms biological template at the air/gel interface and supports the silver salts to grow laterally and largely in a 2D manner between the scaffold layers with a nominal thickness of 4.4 +/- 0.3 nm. This solution-based deposition mechanism is demonstrated based on droplet, spin-coating, and electrohydrodynamic jet printing schemes for robust and flexible conductive thin films or patterns.

• 出版日期2018-5-23