2,6-Conjugated anthracene sensitizers for high-performance dye-sensitized solar cells

Ryan Yeh-Yung Lin; Hung-Wen Lin; Yung-Sheng Yen; Chia-Hao Chang; Hsien-Hsin Chou; Ping-Wei Chen; Chih-Yu Hsu; Yung-Chung Chen; Jiann T. Lin; Kuo-Chuan Ho

doi:10.1039/C3EE41075G

2,6-Conjugated anthracene sensitizers for high-performance dye-sensitized solar cells†

Ryan Yeh-Yung Lin,^ab Hung-Wen Lin,^a Yung-Sheng Yen,^a Chia-Hao Chang,^a Hsien-Hsin Chou,^a Ping-Wei Chen,^b Chih-Yu Hsu,^a Yung-Chung Chen,^a Jiann T. Lin*^a and Kuo-Chuan Ho*^bc

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* Corresponding authors

^a Institute of Chemistry, Academia Sinica, Taipei 11529, Taiwan
E-mail: jtlin@chem.sinica.edu.tw
Tel: +886-2-2789-8522

^b Department of Chemical Engineering, National Taiwan University, Taipei 10617, Taiwan
E-mail: kcho@ntu.edu.tw
Tel: +886-2-2366-0739

^c Institute of Polymer Science and Engineering, National Taiwan University, Taipei 10617, Taiwan

Abstract

Metal-free dyes (Ant1 to Ant4) containing a 2,6-conjugated anthracene unit in the spacer have been synthesized. The conversion efficiency (7.52%) of the dye-sensitized solar cell using Ant3 as the sensitizer reached ∼90% of the standard N719-based cell (8.41%). The co-sensitized DSSC using Ant3 and a near-IR dye (SQ2) exhibited an improved efficiency of 8.08%. With addition of a co-adsorbent, CDCA, the cell efficiency (9.11%) of the Ant3-based DSSC surpassed that of the N719-based standard cell. An even higher efficiency of 10.42% was achieved under weak light irradiation.

Energy & Environmental Science

2,6-Conjugated anthracene sensitizers for high-performance dye-sensitized solar cells†

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2,6-Conjugated anthracene sensitizers for high-performance dye-sensitized solar cells

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