A "roller-wheel" Pt-containing small molecule that outperforms its polymer analogs in organic solar cells. Issue 9 (31st May 2016)

• Record Type: Journal Article
• Authors: He, Wenhan; Livshits, Maksim Y.; Dickie, Diane A.; Yang, Jianzhong; Quinnett, Rachel; Rack, Jeffrey J.; Wu, Qin; Qin, Yang
• Is Part Of: Chemical science. Volume 7:Issue 9(2016:Sep.)
• Page Start: 5798
• Page End: 5804
• Publication Date: 2016-05-31
• Subjects: Chemistry -- Periodicals; 540.5
• DOI: 10.1039/c6sc00513f
• Languages: English
• ISSNs: 2041-6520

Abstract

Abstract : "Roller-wheel" shaped Pt-containing molecules display enhanced crystallinity and are better performing organic solar cell materials than conventional small molecules and polymers featuring "dumbbell" shaped structures. Abstract : 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 π–π interactions, as well as favorable panchromatic absorption behaviors. Organic solar cells (OSCs) employingPt-SM achieve power conversion efficiencies (PCEs) up to 5.9%, the highest reported so far for Pt-containing polymers and small molecules.