Cathode dependence of the open-circuit voltage of polymer:fullerene bulk heterojunction solar cells

Relating the open-circuit voltage to interface molecular properties of donor:acceptor bulk heterojunction solar cells

High open circuit voltage organic solar cells based upon fullerene free bulk heterojunction active layers

We have recently reported on a small organic molecule containing a bithiophene core with end-capping phthalimide units (PthTh2Pth) that exhibited a H-aggregation tendency in the solid state and high electron mobility in organic field effect transistors. In this contribution, we have studied both the physical and electrical properties of poly(3-hexylthiophene) (P3HT) and PthTh2Pth thin films by ...

The Importance of Fullerene Percolation in the Mixed Regions of PolymerFullerene Bulk Heterojunction Solar Cells

wileyonlinelibrary.com © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim J. A. Bartelt, Z. M. Beiley, W. R. Mateker, Dr. K. R. Graham, Prof. M. D. McGehee Department of Materials Science and Engineering Stanford University Stanford, CA 94305, USA E-mail: [email protected] Dr. E. T. Hoke Department of Applied Physics Stanford University Stanford, CA 94305, USA J. D. Douglas, Prof. J. M. J. F...

Barium: An Efficient Cathode Layer for Bulk-heterojunction Solar Cells

We report Barium (Ba) cathode layer for bulk-heterojunction solar cells which enhanced the fill factor (FF) of p-DTS(FBTTh2)2/PC71BM BHJ solar cell up to 75.1%, one of the highest value reported for an organic solar cell. The external quantum efficiency exceeds 80%. Analysis of recombination mechanisms using the current-voltage (J-V) characteristics at various light intensities in the BHJ solar...

Hybrid morphology dependence of CdTe:CdSe bulk-heterojunction solar cells

A nanocrystal thin-film solar cell operating on an exciton splitting pattern requires a highly efficient separation of electron-hole pairs and transportation of separated charges. A hybrid bulk-heterojunction (HBH) nanostructure providing a large contact area and interpenetrated charge channels is favorable to an inorganic nanocrystal solar cell with high performance. For this freshly appeared ...