A Stable Blue Photosensitizer for Color Palette of Dye-Sensitized Solar Cells Reaching 12.6% Efficiency

Yameng Ren; Danyang Sun; Yiming Cao; Hoi Nok Tsao; Yi Yuan; Shaik M Zakeeruddin; Peng Wang; Michael Grätzel

doi:10.1021/jacs.7b12348

A Stable Blue Photosensitizer for Color Palette of Dye-Sensitized Solar Cells Reaching 12.6% Efficiency

J Am Chem Soc. 2018 Feb 21;140(7):2405-2408. doi: 10.1021/jacs.7b12348. Epub 2018 Feb 7.

Authors

Yameng Ren^{1

2}, Danyang Sun¹, Yiming Cao³, Hoi Nok Tsao³, Yi Yuan¹, Shaik M Zakeeruddin³, Peng Wang¹, Michael Grätzel³

Affiliations

¹ Center for Chemistry of Novel & High-Performance Materials, Department of Chemistry, Zhejiang University , 310028 Hangzhou, China.
² Changchun Institute of Applied Chemistry, Chinese Academy of Sciences , 130022 Changchun, China.
³ Laboratory of Photonics and Interfaces, Institute of Chemical Sciences & Engineering , École Polytechnique Fédérale de Lausanne, CH-1015 Lausanne, Switzerland.

PMID: 29323883
DOI: 10.1021/jacs.7b12348

Abstract

We report a blue dye, coded as R6, which features a polycyclic aromatic hydrocarbon, 9,19-dihydrobenzo[1',10']phenanthro[3',4':4,5]thieno[3,2-b]benzo[1,10]phenanthro[3,4-d]thiophene, coupled with a diarylamine electron donor and 4-(7-ethynylbenzo[c][1,2,5]thiadiazol-4-yl)benzoic acid acceptor. Dye R6 displays a brilliant sapphire color in a sensitized TiO₂ mesoporous film with a Co(II/III) tris(bipyridyl)-based redox electrolyte. The R6 based dye-sensitized solar cell achieves an impressive power conversion efficiency of 12.6% under standard air mass 1.5 global, 100 mW cm^-2, and shows a remarkable photostability.

Publication types

Research Support, Non-U.S. Gov't