Highly
Efficient Monolithic Dye-Sensitized Solar Cells
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Abstract
Monolithic
dye-sensitized solar cells (M-DSSCs) provide an effective way to reduce
the fabrication cost of general DSSCs since they do not require transparent
conducting oxide substrates for the counter electrode. However, conventional
monolithic devices have low efficiency because of the impediments
resulting from counter electrode materials and spacer layers. Here,
we demonstrate highly efficient M-DSSCs featuring a highly conductive
polymer combined with macroporous polymer spacer layers. With M-DSSCs
based on a PEDOT/polymer spacer layer, a power conversion efficiency
of 7.73% was achieved, which is, to the best of our knowledge, the
highest efficiency for M-DSSCs to date. Further, PEDOT/polymer spacer
layers were applied to flexible DSSCs and their cell performance was
investigated