Figure 2From: Generation of high photocurrent in three-dimensional silicon quantum dot superlattice fabricated by combining bio-template and neutral beam etching for quantum dot solar cellsSchematics of the three types of Si-ND arrangements. (a) Separated Si-NDs as single QD, (b) 2D array of Si-NDs as 2D QDSL, and (c) 3D array of Si-NDs as 3D QDSL.Back to article page