Purification and electronic characterisation of 18 isomers of the OPV acceptor material bis-[60]PCBM
| Autor: | Tong Liu, Wenda Shi, Jan C. Hummelen, T. J. S. Dennis, X. Hou, Xiaoming Zhao, A. B. Sieval |
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| Přispěvatelé: | Molecular Energy Materials |
| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: |
Absorption spectroscopy
Inorganic chemistry 02 engineering and technology 010402 general chemistry 01 natural sciences High-performance liquid chromatography Catalysis HETEROJUNCTION SOLAR-CELLS Materials Chemistry Organic chemistry PHOTOVOLTAIC CELLS Chemistry Metals and Alloys LUMO-LEVEL POLYMER General Chemistry 021001 nanoscience & nanotechnology Acceptor 0104 chemical sciences Surfaces Coatings and Films Electronic Optical and Magnetic Materials OPEN-CIRCUIT VOLTAGE Ceramics and Composites Cyclic voltammetry 0210 nano-technology C-60 Retention time BISADDUCTS |
| Zdroj: | Chemical Communications, 53(5), 975-978. ROYAL SOC CHEMISTRY |
| ISSN: | 1359-7345 |
| Popis: | The as-produced isomer mixture of the organic photovoltaic device acceptor material bis-[60] PCBM has been purified into its constituents by peak-recycling HPLC, and those individual isomers were characterised by UV-Vis absorption spectroscopy and cyclic voltammetry. A total of 18 isomerswere purified from the mixture to a standard exceeding 99.5% with respect to other isomers. The HOMOs, LUMOs, and HOMO-LUMO gaps of the purified isomers vary from -5.673 to -5.444 eV, -3.901 to -3.729 eV, and 1.664 to 1.883 eV, respectively. We also find a correlation between HPLC retention time and the relative positions of the addends; in that generally the closer the addends are to each other the longer the retention time of the isomer, and vice versa. |
| Databáze: | OpenAIRE |
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