2H‐Dinaphthopentacene: A Polycyclic Aromatic Hydrocarbon Core for Metal‐Free Organic Sensitizers in Efficient Dye‐Sensitized Solar Cells. Issue 9 (25th April 2017)

• Record Type: Journal Article
• Authors: Ren, Yameng; Liu, Jiao; Zheng, Aibin; Dong, Xiandui; Wang, Peng
• Is Part Of: Advanced science. Volume 4:Issue 9(2017)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2017-04-25
• Subjects: charge transfer -- dyes -- excited states -- polycyclic aromatic hydrocarbon -- solar cells; Science -- Periodicals; 505
• DOI: 10.1002/advs.201700099
• Languages: English
• ISSNs: 2198-3844

Abstract

Abstract : Continuous studies on the use of a polycyclic aromatic hydrocarbon as the central block of an organic photosensitizer have brought forth a new opportunity toward efficiency enhancement of dye‐sensitized solar cells (DSCs). In this paper, a nonacyclic aromatic hydrocarbon 9, 19‐dihydrodinaphtho[3, 2, 1‐ de :3′, 2′, 1′‐ op ]pentacene, tethered with four 4‐hexylphenyl solubilizing groups is reported. The novel chromophore 9, 9‐19‐19‐tetrakis(4‐hexylphenyl)‐9, 19‐dihydrodinaphtho[3, 2, 1‐ de :3′, 2′, 1′‐ op ]pentacene is further functionalized with diarylamines and 4‐(7‐ethynylbenzo[ c ][1, 2, 5]thiadiazol‐4‐yl)benzoic acid to produce two donor–acceptor (D–A) organic photosensitizers, achieving good power conversion efficiencies up to 10.2% in DSCs. Abstract : A nonacyclic aromatic hydrocarbon, 9, 19‐dihydrodinaphtho[3, 2, 1‐ de :3′, 2′, 1′‐ op ]pentacene, tethered with four 4‐hexylphenyl solubilizing groups, is reported. The chromophore 9, 9, 19, 19‐tetrakis(4‐hexylphenyl)‐9, 19‐dihydrodinaphtho[3, 2, 1‐ de :3′, 2′, 1′‐ op ]pentacene is further functionalized with diarylamines and 4‐(7‐ethynylbenzo[ c ][1, 2, 5]thiadiazol‐4‐yl)benzoic acid to produce two donor–acceptor organic photosensitizers, achieving good power conversion efficiencies up to 10.2% in dye‐sensitized solar cells.