Current Collecting Grids for ITO-Free Solar Cells

Publication: Research - peer-reviewJournal article – Annual report year: 2012

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Indium-tin-oxide (ITO) free polymer solar cells prepared by ink jet printing a composite front electrode comprising silver grid lines and a semitransparent PEDOT:PSS conductor are demonstrated. The effect of grid line density is explored for a large series of devices and a careful modeling study enabling the identification of the most rational grid structure is presented. Both optical and light beam induced current (LBIC) mapping of the devices are used to support the power loss model and to follow the evolution of the performance over time. Current generation is found to be evenly distributed over the active area initially progressing to a larger graduation in areas with different performance. Over time coating defects also become much more apparent in the LBIC images.
Original languageEnglish
JournalAdvanced Energy Materials
Publication date2012
Volume2
Issue1
Pages103-110
ISSN1614-6832
DOIs
StatePublished
CitationsWeb of Science® Times Cited: 41

Keywords

  • Physics, Chemistry, Indium-tin-oxide, Materials, Large-area, Electrode grids, Inkjet printing, Efficiency, Energy, Conducting polymer, ITO-free solar cells, Polymer solar cells, Organic photovoltaic devices, Regioregularity, Fabrication, Modeling, Current collecting grids
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