(111). 110 . Cross-section view. p-type CdTe ~4.5 μ m. n-type CdS ~ 0.2 μ m. Front contact SnO2:F ~ 0.2 μ m. glass. N anoEngineering Research Laboratory.
p-type CdTe ~4.5 μm
n-type CdS ~ 0.2 μm
Front contact SnO2:F ~ 0.2 μm
Energy of the Future: Solar CellsRade Kuljic1, Hyeson Jung1, Ayan Kar1, Michael A. Stroscio1,2 and Mitra Dutta1,31Department of Electrical and Computer Engineering, University of Illinois at Chicago2Department of Bioengineering, University of Illinois at Chicago, 3Department of Physics, University of Illinois at Chicago
Problem Statement and Motivation
CdTe Thin Film Solar Cell
SEM cross sectional view of the fabricated CdTe cells
Solar spectral irradiance (red) and ideal conversion efficiency of most common inorganic solar cells (green)
Butterfly toys powered up with our CdTe cells
I-V characteristic of our record cell with efficiency of 12.16%
PbSe Nanowires for Photovoltaic Applications
Schematic illustration of the Fermi-level pinning at the nanowire surface due to surface oxidization.
SEM images: Surface view (top) and cross-sectional side view (bottom) of grown nanowires.
(a) FTIR spectrum and (b) PL spectrum of the PbSe nanowires are presented. Cut-off wavelength at 2.5 m and PL peak at 2.45 m are found, despite energy band gap of bulk PbSe crystal is 4.46 m at 300K.