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题名: Aryl/hetero-arylethyne bridged dyes: the effect of planar pi-bridge on the performance of dye-sensitized solar cells
作者: Song, Jun-Ling2;  Amaladass, Pitchamuthu2;  Wen, Shu-Hao1;  Pasunooti, Kalyan Kumar2;  Li, An2;  Yu, Yao-Lun3;  Wang, Xin3;  Deng, Wei-Qiao1;  Liu, Xue-Wei2
刊名: NEW JOURNAL OF CHEMISTRY
发表日期: 2011
DOI: 10.1039/c0nj00653j
卷: 35, 期:1, 页:127-136
收录类别: SCI ;  IC
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Multidisciplinary
研究领域[WOS]: Chemistry
英文摘要: We have designed and synthesized three metal-free sensitizers consisting of dimethoxy-substituted triphenylamine as donor, cyanoacrylic acid as acceptor with planar pi-bridge. The photon to current conversion efficiency of these dyes were measured as sensitizers for DSSCs analysis. The results obtained from these experiments show that the overall conversion efficiency of D3 gave the highest overall efficiency 4.98% with short circuit current density (J(sc)) of 11.29 mA cm(-2), an open-circuit voltage (V-oc) of 0.637 V and a fill factor of 69.2% under standard global AM 1.5 solar conditions. In addition, the experimental results show that pi-conjugated bridge can extend the absorption of dye molecular and strong planarity (close-packing) can suppress the charge recombination at TiO2/electrolyte interface. Hence, the donor-pi bridge-acceptor architectures can generate a unidirectional current flow, to some extent, which can enhance the cell performance.
关键词[WOS]: ULTRAFAST ELECTRON-TRANSFER ;  NANOCRYSTALLINE TIO2 FILMS ;  LANGMUIR-BLODGETT-FILMS ;  ORGANIC-DYES ;  MEROCYANINE DYES ;  HIGH-EFFICIENCY ;  PHOTOVOLTAIC PERFORMANCE ;  CHARGE-TRANSFER ;  RUTHENIUM DYES ;  COUMARIN DYES
语种: 英语
WOS记录号: WOS:000285515400019
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/142359
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China
2.Nanyang Technol Univ, Div Chem & Biol Chem, SPMS, Singapore 637371, Singapore
3.Nanyang Technol Univ, SCBE, Div Chem & Biomol Engn, Singapore 639798, Singapore

Recommended Citation:
Song, Jun-Ling,Amaladass, Pitchamuthu,Wen, Shu-Hao,et al. Aryl/hetero-arylethyne bridged dyes: the effect of planar pi-bridge on the performance of dye-sensitized solar cells[J]. NEW JOURNAL OF CHEMISTRY,2011,35(1):127-136.
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