Figure 2
From: Broadband solar absorption enhancement via periodic nanostructuring of electrodes
Fabricated nanostructured CQD solar cells.
(a) Illustration of the fabrication process for the periodic nanostructured substrates. The periodicity (sphere size) is 1 μm. The device is completed by depositing the PbS CQDs via dip-coating and evaporation of the MoO3/Au/Ag top contact/mirror. (b) 45° tilt angle and (c) cross-sectional SEM images of the nanostructured CQD solar cell with PbS layer (before metal contact evaporation). (d) Cross-sectional SEM image of the planar control device using the same preparation procedure without the nanosphere lithography step. (e) Cross-sectional illustration of the corresponding FDTD simulation structure based on the cross-sectional SEM.
