Controlling the shape of surface nanostructures is fundamental for various potential applications for examples, in water harvesting systems, liquid transportation or oil/water separation membranes. In this paper, the creation of porous surface structures is made by a process called templateless electropolymerization, in which water (H₂O) is oxidized/reduced to form gas (O₂/H₂) bubbles onto the surfaces and acting as soft template for the polymer growth. Keeping the monomer (thieno[3,4-b]thiophene) and the substituent (pyrene) constant, we demonstrate how a flexible PEG spacer can affect the structure shape. When the PEG spacer increases, the structures change from nanotubes (1D growth) to nanoribbons (2D) and after to hollow nanospheres (3D), which also affects the wetting properties.

控制表面纳米结构的形状对于各种潜在应用至关重要，例如在集水系统，液体输送或油/水分离膜中。在本文中，通过称为无模板电聚合的过程创建了多孔表面结构，其中水（H ₂ O）被氧化/还原形成气体（O ₂ / H ₂）气泡在表面上，并充当聚合物生长的软模板。保持单体（噻吩并[3,4-b]噻吩）和取代基（py）恒定，我们证明了柔性PEG间隔基如何影响结构形状。当PEG间隔基增加时，结构会从纳米管（1D生长）变为纳米带（2D），然后变为空心纳米球（3D），这也会影响润湿性能。