Inverted Polymer Solar Cells with Reduced Interface Recombination
Song Chen, Cephas E Small, Chad M Amb, Jegadesan Subbiah, Tzung-han Lai, Sai-Wing Tsang, Jesse R Manders, John R Reynolds, Franky So
Advanced Energy Materials | WILEY-V C H VERLAG GMBH | Published : 2012
Conjugated polymer solar cells are attractive as a source of renewable energy due to their compatibility with low cost rollto- roll printing processes. [ 1 ] The most effi cient of these polymer cells utilize a bulk heterojunction (BHJ) morphology, most often fabricated by blending a light-absorbing, electron-donating, and hole-transporting polymer with an electron-accepting fullerene derivative to form an active layer, which separates and transports charge carriers to the electrodes. While conventional BHJ cells are fabricated with a top cathode which requires a low work function metal for effi cient electron extraction, [ 2-5 ] this device architecture is not viable for large area processi..View full abstract
Awarded by Department of Energy Basic Energy Sciences
Awarded by Office of Naval Research
Awarded by Air Office of Scientific Research
We acknowledge the support of Department of Energy Basic Energy Sciences (Award Number: DE-FG0207ER46464) for the synthesis and characterization of ZnO nanoparticles, the Office of Naval Research (Award number: N00014-11-1-0245) for the fabrication and characterization of the solar cells, and the Air Office of Scientific Research (Award number: FA9550-09-1-0320) for the synthesis of the polymers. We also acknowledge Dr. Kerry Siebein from the Major Analytical Instrumentation Center (MAIC) at the University of Florida for the transmission electron microscopy characterization.