Journal
MATTER
Volume 4, Issue 1, Pages -Publisher
CELL PRESS
DOI: 10.1016/j.matt.2020.10.019
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Funding
- National Natural Science Foundation of China [31771083]
- Research Grants Council of Hong Kong [C1018-17G, 11275216, 11218417]
- Shenzhen Science and Technology Innovation Council [JCYJ20170413141208098]
- City University of Hong Kong [9680212, 9610375]
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Electrostatic charges can easily be generated on surfaces, affecting surface functions both positively and negatively. Existing engineering approaches for antistatic surfaces have limitations, but leveraging chemically heterogeneous components to design antistatic coatings offers a general solution with good re-writability and transparency.
Electrostatic charges are easily generated on surfaces during contact electrification. Although these invisible charges have emerged as a new dimension in mediating the functions of surfaces, such as energy conversion, liquid transport, reactivity, and adsorbability, the accumulation of charges on surfaces can also pose many undesirable consequences. Despite notable progress, existing approaches in engineering antistatic surfaces suffer from limitations such as the need to modify bulk materials or for delicate control of patterning on surfaces that rely on the neutralization of generated charges. Herein, we report a general toolbox for designing antistatic coatings by leveraging on chemically heterogeneous components with electron-donating and electron-accepting functions, i.e., N-(2-aminoethyl)-3-aminopropyltrimethoxysilane and 1H,1H,2H,2H-perfluorooctyl trimethoxysilane, to molecularly engineer the surface potential to achieve an electrostatic homogeneity and completely prevent charge generation. Our approach is general, which allows the facile fabrication of antistatic coatings on various materials, even flexible and curved, with good re-writability and transparency.
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