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题名: Effect of Aspect Ratio of the Dye Molecule on the Properties of Dye Sensitized Solar Cells
作者: Ren Siyao1, 2, 3; Zhou Xueqin1, 2, 3; Liu Dongzhi1, 2, 3; Jiang Kejian4; Li Wei1, 2, 3; Wang Lichang1, 2; Wang Tianyang1, 2, 3
关键词: Dye sensitized solar cell ; Aspect ratio ; Absorbed amount ; Aggregation
刊名: CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE
发表日期: 2016-09-10
卷: 37, 期:9, 页:1669-1677
收录类别: SCI
英文摘要: Three dyes, 2-cyano-3-[2-(4-{2-[4-N, N-bis (4-methylphenyl) aminophenyl] vinyl}-phenylamino)-pyrimidin-5-yl]-acrylic acid (MTPA-Pyc), 2-cyano-3-(4-{2-[4-N, N-bis (4-methylphenyl) aminophenyl] vinyl}-phenyl)-acrylic acid (MTPAcc), and 2-cyano-3-[4-{2-[4-N, N-bis (4-methylphenyl) aminophenyl]-acrylic acid(MTPAc), that have different aspect ratios were studied for their performances as sensitizer in a dye sensitized solar cell (DSSC). The effects of solvent, the amount of dye molecules adsorbed on the surface of TiO2, and dye aggregation were investigated. The results show that MTPAcc has the most suitable aspect ratio among the three dyes with the highest and best photovoltaic properties. Polariry of absorption solvents can influence not only the absorbed amount of dyes at TiO2 but also the dye aggregation. MTPA-Pyc with a large aspect ratio exists in H-aggregation in tolene and tetrahydrofuran, whereas J-aggregation in acetonitrile. MTPAcc was found with high absorption amount at TiO2 but without aggregation, resulting in the best photovoltaic properties of corresponding DSSC with the incident photon-to-current efficiency(IPCE) of 84% at 490 nm and the photoelectric conversion efficiency (eta) of 5.72%. Therefore, the aspect ratio of dye sensitizers is significant for the photovoltaic properties of DSSC.
语种: 英语
内容类型: 期刊论文
URI标识: http://ir.iccas.ac.cn/handle/121111/35650
Appears in Collections:绿色印刷实验室_期刊论文

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作者单位: 1.Tianjin Univ, Sch Chem Engn & Technol, Tianjin 300350, Peoples R China
2.Collaborat Innovat Ctr Chem Sci & Engn, Tianjin 300350, Peoples R China
3.Tianjin Engn Res Ctr Funct Fine Chem, Tianjin 300350, Peoples R China
4.Chinese Acad Sci, Inst Chem, Key Lab Green Printing, Beijing 100190, Peoples R China
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