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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Savoie, Brett M. Marks, Tobin J. Jackson, Nicholas E. Olvera De La Cruz, Monica Chen, Lin X. Ratner, Mark A. Schatz, George C. Kohlstedt, Kevin L. |
| Description | Author Affiliation: Savoie BM ( Department of Chemistry, Northwestern University, Evanston, IL 60208); Kohlstedt KL ( Department of Chemistry, Northwestern University, Evanston, IL 60208); Jackson NE ( Department of Chemistry, Northwestern University, Evanston, IL 60208); Chen LX ( Department of Chemistry, Northwestern University, Evanston, IL 60208); Olvera de la Cruz M ( Department of Chemistry, Northwestern University, Evanston, IL 60208); Schatz GC ( Department of Chemistry, Northwestern University, Evanston, IL 60208); Marks TJ ( Department of Chemistry, Northwestern University, Evanston, IL 60208); Ratner MA ( Department of Chemistry, Northwestern University, Evanston, IL 60208); |
| Abstract | High-performance solution-processed organic semiconductors maintain macroscopic functionality even in the presence of microscopic disorder. Here we show that the functional robustness of certain organic materials arises from the ability of molecules to create connected mesoscopic electrical networks, even in the absence of periodic order. The hierarchical network structures of two families of important organic photovoltaic acceptors, functionalized fullerenes and perylene diimides, are analyzed using a newly developed graph methodology. The results establish a connection between network robustness and molecular topology, and also demonstrate that solubilizing moieties play a large role in disrupting the molecular networks responsible for charge transport. A clear link is established between the success of mono and bis functionalized fullerene acceptors in organic photovoltaics and their ability to construct mesoscopically connected electrical networks over length scales of 10 nm. |
| ISSN | 00278424 |
| e-ISSN | 10916490 |
| Journal | Proceedings of the National Academy of Sciences of the United States of America |
| Issue Number | 28 |
| Volume Number | 111 |
| Language | English |
| Publisher | National Academy of Sciences |
| Publisher Date | 2014-07-01 |
| Publisher Place | United States |
| Access Restriction | Open |
| Subject Keyword | Multidisciplinary |
| Content Type | Text |
| Resource Type | Article |
| Subject | Multidisciplinary |
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