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DOI | 10.1038/s41467-018-02822-y |
Spectroscopic detection of halogen bonding resolves dye regeneration in the dye-sensitized solar cell | |
Parlane, Fraser G. L.1,2; Mustoe, Chantal1; Kellett, Cameron W.1; Simon, Sarah J.1; Swords, Wesley B.3; Meyer, Gerald J.3; Kennepohl, Pierre1; Berlinguette, Curtis P.1,2,4 | |
2017-11-24 | |
发表期刊 | NATURE COMMUNICATIONS
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ISSN | 2041-1723 |
出版年 | 2017 |
卷号 | 8 |
文章类型 | Article |
语种 | 英语 |
国家 | Canada; USA |
英文摘要 | The interactions between a surface-adsorbed dye and a soluble redox-active electrolyte species in the dye-sensitized solar cell has a significant impact on the rate of regeneration of photo-oxidized dye molecules and open-circuit voltage of the device. Dyes must therefore be designed to encourage these interfacial interactions, but experimentally resolving how such weak interactions affect electron transfer is challenging. Herein, we use X-ray absorption spectroscopy to confirm halogen bonding can exist at the dye-electrolyte interface. Using a known series of triphenylamine-based dyes bearing halogen substituents geometrically positioned for reaction with halides in solution, halogen bonding was detected only in cases where brominated and iodinated dyes were photo-oxidized. This result implies that weak intermolecular interactions between photo-oxidized dyes and the electrolyte can impact device photovoltages. This result was unexpected considering the low concentration of oxidized dyes (less than 1 in 100,000) under full solar illumination. |
领域 | 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000416292500007 |
WOS关键词 | RAY-ABSORPTION SPECTROSCOPY ; CORRELATED MOLECULAR CALCULATIONS ; CHARGE RECOMBINATION KINETICS ; GAUSSIAN-BASIS SETS ; COVALENCY ; EFFICIENCY ; LIGHT ; THERMODYNAMICS ; APPROXIMATION ; COMPUTATION |
WOS类目 | Multidisciplinary Sciences |
WOS研究方向 | Science & Technology - Other Topics |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/203660 |
专题 | 资源环境科学 |
作者单位 | 1.Univ British Columbia, Dept Chem, 2036 Main Mall, Vancouver, BC V6T 1Z1, Canada; 2.Univ British Columbia, Stewart Blusson Quantum Matter Inst, 2355 East Mall, Vancouver, BC V6T 1Z4, Canada; 3.Univ N Carolina, Dept Chem, Murray Hall 2202B, Chapel Hill, NC 27599 USA; 4.Univ British Columbia, Dept Chem & Biol Engn, 2036 East Mall, Vancouver, BC V6T 1Z3, Canada |
推荐引用方式 GB/T 7714 | Parlane, Fraser G. L.,Mustoe, Chantal,Kellett, Cameron W.,et al. Spectroscopic detection of halogen bonding resolves dye regeneration in the dye-sensitized solar cell[J]. NATURE COMMUNICATIONS,2017,8. |
APA | Parlane, Fraser G. L..,Mustoe, Chantal.,Kellett, Cameron W..,Simon, Sarah J..,Swords, Wesley B..,...&Berlinguette, Curtis P..(2017).Spectroscopic detection of halogen bonding resolves dye regeneration in the dye-sensitized solar cell.NATURE COMMUNICATIONS,8. |
MLA | Parlane, Fraser G. L.,et al."Spectroscopic detection of halogen bonding resolves dye regeneration in the dye-sensitized solar cell".NATURE COMMUNICATIONS 8(2017). |
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