154 - Solution-processed Fe3O4 magnetic nanoparticle thin film aligned by an external magnetostatic field as a hole extraction layer for polymer solar cells
Kai Wang, email@example.com, Department of Polymer Science and Polymer Engineering, The University of Akron, Akron, Ohio 44325-0301, United States
We report, for the first time, the effect of solution-processed Fe3O4 magnetic nanoparticles (MNP) thin film, and Fe3O4 MNP thin film aligned by an external magnetostatic field, used as a hole extraction layer (HEL), respectively, in polymer solar cells (PSCs). The thin film of Fe3O4 MNP shows a smoother surface, better transparency and high electrical conductivity than that of poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) thin layer. Moreover, thin film of Fe3O4 MNP aligned by an external magnetostatic field possesses an enhanced electrical conductivity, lower internal series resistance and thus leading to greater than 13% enhancement in power conversion efficiency (PCE) of PSCs than those using PEDOT:PSS thin film. It was also found that PSCs incorporated with Fe3O4 MNP shows better stability as compared with those using PEDOT:PSS as an anode buffer layer. These results demonstrated that the utilization of Fe3O4 MNP as a HEL in PSCs blaze a trail to achieve high efficient and long-time stable devices.
Tuesday, March 18, 2014 10:55 AM
Conjugated Polymers for Optoelectronics, Electronics and Biosensors (08:00 AM - 12:30 PM)
Location: Hyatt Regency Dallas
Room: Cumberland B