Piperidine-Substituted Perylene Sensitizer for Dye-Sensitized Solar Cells
| Autor: | Joe Otsuki, Surya Prakash Singh, Yusho Takaguchi, Ashraful Islam, Daichi Takahashi, Palanisamy Kalimuthu, Liyuan Han |
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| Rok vydání: | 2011 |
| Předmět: |
chemistry.chemical_classification
Photocurrent Materials science Article Subject Absorption spectroscopy business.industry lcsh:Electronics Energy conversion efficiency Iodide lcsh:TK7800-8360 Photochemistry Nanocrystalline material Electronic Optical and Magnetic Materials law.invention chemistry.chemical_compound Dye-sensitized solar cell chemistry law Solar cell lcsh:QC350-467 Optoelectronics Electrical and Electronic Engineering business lcsh:Optics. Light Perylene |
| Zdroj: | Advances in OptoElectronics, Vol 2011 (2011) |
| ISSN: | 1687-5648 1687-563X |
| DOI: | 10.1155/2011/860486 |
| Popis: | We have prepared a novel piperidine-donor-substituted perylene sensitizer, PK0002, and studied the photovoltaic performance in dye-sensitized solar cells (DSSCs). Physical properties and photovoltaic performance of this new perylene derivative PK0002 are reported and compared with those of unsubstituted perylene sensitizer, PK0003. PK0002, when anchored to nanocrystalline TiO2 films, achieves very efficient sensitization across the whole visible range extending up to 800 nm. The incident photon-to-current conversion efficiency (IPCE) spectrum was consistent with the absorption spectrum and resulted in a high short-circuit photocurrent density (Jsc) of 8.8 mA cm-2. PK0002 showed higher IPCE values than PK0003 in the 520–800 nm region. Under standard AM 1.5 irradiation (100 mW cm-2) and using an electrolyte consisting of 0.6 M dimethylpropyl-imidazolium iodide, 0.05 M I2, 0.1 M LiI, and 0.5 M tert-butylpyridine in acetonitrile, a solar cell containing sensitizer PK0002 yielded a short-circuit photocurrent density of 7.7 mA cm-2, an open-circuit photovoltage of 0.57 V, and a fill factor of 0.70, corresponding to an overall conversion efficiency of 3.1%. |
| Databáze: | OpenAIRE |
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