Advanced Materials · 2012 · 165 citations · 26 references
Natural SciencesChemistryMaterials ScienceElectronic MaterialsOptoelectronicsSemiconductor MaterialsOptoelectronic MaterialsOrganic SemiconductorsPhotovoltaic DevicesPhotovoltaic MaterialsSolar Cell MaterialsSolar CellsBulk Heterojunction Solar CellsOrganic Photovoltaic CellsOrganic PhotovoltaicsOrganic Solar CellsPower ConversionPower Conversion EfficiencySmall-molecule Organic SemiconductorsWork Function
A novel n-type small molecule FFI-1 was synthesized as the electron acceptor to replace PCBM in solution-processed organic BHJ solar cells. Its LUMO level (around -3.5 eV) both matches the work function of the cathode and increases VOC of the devices, making it a promising acceptor candidate. With P3HT: FFI-1 (1:2 w/w) as active layer and LiF/Al as the cathode, the best power conversion efficiency (PCE) reaches 1.86%. Detailed facts of importance to specialist readers are published as ”Supporting Information”. Such documents are peer-reviewed, but not copy-edited or typeset. They are made available as submitted by the authors. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.
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