A Carbon NanoTube (CNT) structure includes a substrate, a CNT support
layer, and a plurality of CNTs. The CNT support layer is stacked on the
substrate and has pores therein. One end of each of the CNTs is attached
to portions of the substrate exposed through the pores and each of the
CNTs has its lateral sides supported by the CNT support layer. A method
of vertically aligning CNTs includes: forming a first conductive
substrate; stacking a CNT support layer having pores on the first
conductive substrate; and attaching one end of the each of the CNTs to
portions of the first conductive substrate exposed through the pores.