Molecular design of new organic sensitizers based on thieno[1,4]benzothiazine for dye-sensitized solar cells

Hu Liu; Xingrong Liao; Xiaoyu Li; Di Wu; Qiang Guo; Jie Wu; Shengyou Qian; Jingbo Lan; Ruilin Wang; Jingsong You

doi:10.1039/C5RA07785K

Molecular design of new organic sensitizers based on thieno[1,4]benzothiazine for dye-sensitized solar cells†

Hu Liu,^a Xingrong Liao,^a Xiaoyu Li,^a Di Wu,^a Qiang Guo,^a Jie Wu,^a Shengyou Qian,^a Jingbo Lan,*^a Ruilin Wang*^b and Jingsong You*^a

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* Corresponding authors

^a Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, State Key Laboratory of Biotherapy, West China Medical School, Sichuan University, 29 Wangjiang Road, Chengdu 610064, PR China
E-mail: jingbolan@scu.edu.cn, jsyou@scu.edu.cn
Fax: +86-28-85412203

^b College of Materials Science and Engineering, Sichuan University, 29 Wangjiang Road, Chengdu 610064, PR China
E-mail: rl.wang@scu.edu.cn

Abstract

A novel thieno[1,4]benzothiazine donor has been developed for the first time to construct metal-free organic sensitizers, which exhibit more dramatically red-shifted absorptions than phenothiazine-based dyes. Under AM 1.5G irradiation, the conversion efficiency of the new dye TBT-1-based DSSC (η = 7.6%) approximates to that of the phenothiazine-based PT-C₆, indicating thieno[1,4]benzothiazine would be a promising electron donor for the construction of organic optoelectronic materials.

RSC Advances

Molecular design of new organic sensitizers based on thieno[1,4]benzothiazine for dye-sensitized solar cells†

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Molecular design of new organic sensitizers based on thieno[1,4]benzothiazine for dye-sensitized solar cells

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