Enhancing Marangoni-driven Pattern Resolution using Shrinking Substrates
발표자
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초록
내용
The Marangoni effect causes liquids to flow toward localized regions of higher surface tension. In a polymer thin film, such flow induced by photo-chemically programmed surface tension gradients could be harnessed to manufacture patterned surfaces. Strictly speaking, the final pattern periodicity of the Marangoni-driven features matches that of the initially prescribed surface energy pattern. To achieve greater resolution than the original light exposure pattern without adapting sophisticated and complex tools, a pre-strained polymer film was used as a substrate. This approach allows patterning beyond the resolution limit of proximity printing.