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Title
Inverted and transparent polymer solar cells prepared with vacuum-free processing
Article in journal
Authors
Yinhua Zhou, Fenghong Li, Sophie Barrau, Wenjing Tian, Olle Inganäs, Fengling Zhang
Publication Year
2009
Source
SOLAR ENERGY MATERIALS AND SOLAR CELLS, 2009, (93)4, 497-500
Link to Source (DOI)
10.1016/j.solmat.2008.11.002
Abstract
<p>Inverted transparent polymer solar cells were fabricated by sequentially depositing several organic layers from fluids, on ITO/glass substrates. ITO was used as a cathode to collect electrons. The photovoltage of these diodes can be increased by up to 400 mV by inserting a buffer layer of polyethylene oxide between ITO and the active layers, which results in 4-fold enhancement of power conversion efficiency under the illumination of 100 mW/cm(2) simulated AM1.5 solar light. The enhancement of V., is consistent with the work function change between ITO and ITO/PEO measured by photoelectron spectroscopy. Solar cell production without vacuum processing may lower production costs.</p>