Despite the various techniques, achieving precise alignment at the nanoscale presents several challenges:
Scale: The small size of nanomaterials makes precise control challenging. Even minute misalignments can have significant impacts on device performance. Complexity: Aligning nanomaterials in three-dimensional structures adds another layer of complexity. Techniques that work well in two dimensions may not be suitable for three-dimensional applications. Material Properties: Different nanomaterials have unique properties that can affect their alignment. For example, the high aspect ratio of CNTs can make them difficult to align using traditional methods. Integration: Integrating aligned nanomaterials with existing micro- and macro-scale systems requires precise interfacing techniques. Misalignment at the integration points can lead to system failures.
