Tuning the Properties of Polymer Bulk Heterojunction Solar Cells by Adjusting Fullerene Size to Control Intercalation
AuthorsCates, Nichole C.
Miller, Chad E.
Toney, Michael F.
McGehee, Michael D.
KAUST Grant NumberKUS-C1-015-21
Permanent link to this recordhttp://hdl.handle.net/10754/599847
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AbstractWe demonstrate that intercalation of fullerene derivatives between the side chains of conjugated polymers can be controlled by adjusting the fullerene size and compare the properties of intercalated and nonintercalated poly(2,5-bis(3-hexadecylthiophen-2-yl)thieno[3,2-b]thiophene (pBTTT):fullerene blends. The intercalated blends, which exhibit optimal solar-cell performance at 1:4 polymer:fullerene by weight, have better photoluminescence quenching and lower absorption than the nonintercalated blends, which optimize at 1:1. Understanding how intercalation affects performance will enable more effective design of polymer:fullerene solar cells. © 2009 American Chemical Society.
CitationCates NC, Gysel R, Beiley Z, Miller CE, Toney MF, et al. (2009) Tuning the Properties of Polymer Bulk Heterojunction Solar Cells by Adjusting Fullerene Size to Control Intercalation. Nano Lett 9: 4153–4157. Available: http://dx.doi.org/10.1021/nl9023808.
SponsorsThis work was primarily supported by the Department of Energy, Office of Basic Energy Sciences, Division of Materials Sciences and Engineering, under contract DE-AC02-76SF00515. C.E.M. was supported by the Center for Advanced Molecular Photovoltaics (Award No KUS-C1-015-21), made by King Abdullah University of Science and Technology (KAUST). Additional funding was provided by the National Science Foundation (N.C.C.) and the Swiss National Science Foundation (R.G.). Portions of this research were carried out at the Stanford Synchrotron Radiation Lightsource (SSRL), a national user facility operated by Stanford University on behalf of the U.S. Department of Energy, Office of Basic Energy Sciences.
PublisherAmerican Chemical Society (ACS)
CollectionsPublications Acknowledging KAUST Support
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