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Substrate morphology induced self-organization into carbon nanotube arrays, ropes, and agglomerates

机译：基底形态诱导自组织成碳纳米管阵列，绳索和团聚体

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In this paper, hydrophobic carbon nanotube (CNT) arrays, ropes, and agglomerates were synthesized through self-organization on quartz substrates with different micro-structures under the same growth condition. On a flat substrate, a uniform woven structure was formed which resulted in a synchronous growth into an array. When the substrate with 10 mu m round concaves distributed on the surface was adopted, the woven structure was sporadic and a CNT cluster was grown in the concave. With further growth, CNT ropes were self-organized. Subsequently, when the substrate consisting of irregular similar to 100 nm gaps was used, the initial woven structure was high density, thus resulting in the formation of CNT agglomerates. Study results showed that CNT arrays grown on the flat substrate were of the highest purity and had a contact angle of 153.8 +/- 0.9 degrees. Thus, the self-organization behavior among CNTs was in situ modulated by different substrate morphology without further treatments. This provides us with an additional understanding of the self-organization of CNTs during growth, as well as strategies for the controllable synthesis of CNTs with fixed properties.
机译：本文在相同的生长条件下，通过自组织在具有不同微观结构的石英基板上合成了疏水性碳纳米管（CNT）阵列，绳索和附聚物。在平坦的基板上，形成均匀的编织结构，这导致同步生长成阵列。当采用在表面上具有10μm圆形凹面的基底时，编织结构是零星的，并且CNT簇在该凹面中生长。随着进一步的发展，CNT绳索是自组织的。随后，当使用由类似于100nm的间隙的不规则结构组成的基板时，初始编织结构是高密度的，因此导致形成CNT附聚物。研究结果表明，在平坦基板上生长的CNT阵列纯度最高，接触角为153.8 +/- 0.9度。因此，无需进一步处理即可通过不同的底物形态原位调节CNT之间的自组织行为。这使我们对碳纳米管在生长过程中的自组织有更多的了解，以及可控制合成具有固定特性的碳纳米管的策略。

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