4.8 Article

A roller-wheel Pt-containing small molecule that outperforms its polymer analogs in organic solar cells

Journal

CHEMICAL SCIENCE
Volume 7, Issue 9, Pages 5798-5804

Publisher

ROYAL SOC CHEMISTRY
DOI: 10.1039/c6sc00513f

Keywords

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Funding

  1. NSF [DMR-1453083, CHE08-40523, CHE09-46690]
  2. U. S. DOE Office of Science Facility at Brookhaven National Laboratory [DE-SC0012704]
  3. NSF CRIF:MU award [CHE04-43580]
  4. Direct For Mathematical & Physical Scien
  5. Division Of Chemistry [1602240] Funding Source: National Science Foundation
  6. Division Of Materials Research
  7. Direct For Mathematical & Physical Scien [1453083] Funding Source: National Science Foundation

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A novel Pt-bisacetylide small molecule (Pt-SM) featuring roller-wheel geometry was synthesized and characterized. When compared with conventional Pt-containing polymers and small molecules having dumbbell shaped structures, Pt-SM displays enhanced crystallinity and intermolecular pi-pi interactions, as well as favorable panchromatic absorption behaviors. Organic solar cells (OSCs) employing Pt-SM achieve power conversion efficiencies (PCEs) up to 5.9%, the highest reported so far for Pt-containing polymers and small molecules.

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