Metal-free organic chromophores featuring an ethynyl-thienothiophene linker with an n-hexyl chain for translucent dye-sensitized solar cells
| Autor: | Kwang-Won Park, Alan A. Wiles, Dong-Suk Lim, Jongin Hong |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Materials science
Band gap photosensitizer 02 engineering and technology 010402 general chemistry Electrochemistry Photochemistry 01 natural sciences lcsh:Technology Article dye-sensitized solar cell Molecule General Materials Science Photosensitizer lcsh:Microscopy lcsh:QC120-168.85 lcsh:QH201-278.5 lcsh:T Chromophore ethynyl-thienothiophene 021001 nanoscience & nanotechnology computational chemistry 0104 chemical sciences Dye-sensitized solar cell Metal free lcsh:TA1-2040 lcsh:Descriptive and experimental mechanics lcsh:Electrical engineering. Electronics. Nuclear engineering 0210 nano-technology lcsh:Engineering (General). Civil engineering (General) Linker lcsh:TK1-9971 |
| Zdroj: | Materials Materials, Vol 12, Iss 11, p 1741 (2019) Volume 12 Issue 11 |
| ISSN: | 1996-1944 |
| Popis: | We report the simple synthesis of two organic chromophores featuring an ethynyl-thienothiophene linker with an n-hexyl chain (CSD-03 and CSD-04), their optical and electrochemical properties, and their use as photosensitizers in dye-sensitized solar cells (DSSCs). Our theoretical and experimental studies show that adding the second thienothiophene allows for narrowing the bandgap of the molecule and thus ensuring more light harvesting in the visible region. The efficiencies of both CSD-03 (5.46 ± 0.03%) and CSD-04 (5.20 ± 0.03%) are comparable to that of N719 (5.92 ± 0.01%) in translucent DSSCs fabricated with 5 &mu m-thick TiO2 photoanodes. |
| Databáze: | OpenAIRE |
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