DATE : 2013-11-29
By a News Reporter-Staff News Editor at Chemicals & Chemistry -- Researchers detail new data in Quinones. According to news reporting originating in Dalian, People's Republic of China, by VerticalNews journalists, research stated, "In the present study, tetramethylammonium hydroquinone (HQ)/benzoquinone (BQ) were developed for use as a redox couple, with poly(3,4-ethylenedioxythiophene) (PEDOT) and multiwalled carbon nanotubes (MWNT) being proposed for use as counter electrode (CE) catalysts in dye-sensitized solar cells (DSSCs). Both metal-complex N719 and metal-free organic dye CM309 were employed to fabricate devices."
The news reporters obtained a quote from the research from the Dalian University of Technology, "For the devices sensitized by N719, when using PEDOT and MWNT CEs, power conversion efficiencies (PCE) of 5.2 and 4.9% were obtained, respectively, which were much higher than that of the device using the traditional Pt CE (4.7%) when HQ/BQ electrolyte was employed. However, with the HQ/BQ redox shuttle, the efficiency of the devices sensitized by N719 is much lower than that of the devices when the traditional I(-)/I3(-) based electrolyte and Pt CE were employed (7.9%)."
According to the news reporters, the research concluded: "While for the CM309 sensitized solar cells, when the HQ/BQ redox shuttle was employed, PEDOT and MWNT performed much better than Pt, the DSSC using the PEDOT CE showed an efficiency of 6.2%, which was close to that of the DSSC using the traditional I(-)/I3(-) electrolyte and Pt CE (6."
For more information on this research see: Dye-sensitized solar cells based on hydroquinone/benzoquinone as bio-inspired redox couple with different counter electrodes. Physical Chemistry Chemical Physics, 2013;15(36):15146-52. ( Royal Society of Chemistry - www.rsc.org/ ; Physical Chemistry Chemical Physics - pubs.rsc.org/en/journals/journalissues/cp)
Our news correspondents report that additional information may be obtained by contacting M. Cheng, State Key Laboratory of Fine Chemicals, DUT-KTH Joint Education and Research Centre on Molecular Devices, Dalian University of Technology (DUT), 2 Linggong Rd, 116024 Dalian, People's Taiwan. Additional authors for this research include X. Yang, C. Chen, J. Zhao, F. Zhang and L. Sun.
SOURCE : Chemicals & Chemistry
By a News Reporter-Staff News Editor at Chemicals & Chemistry -- Researchers detail new data in Quinones. According to news reporting originating in Dalian, People's Republic of China, by VerticalNews journalists, research stated, "In the present study, tetramethylammonium hydroquinone (HQ)/benzoquinone (BQ) were developed for use as a redox couple, with poly(3,4-ethylenedioxythiophene) (PEDOT) and multiwalled carbon nanotubes (MWNT) being proposed for use as counter electrode (CE) catalysts in dye-sensitized solar cells (DSSCs). Both metal-complex N719 and metal-free organic dye CM309 were employed to fabricate devices."
The news reporters obtained a quote from the research from the Dalian University of Technology, "For the devices sensitized by N719, when using PEDOT and MWNT CEs, power conversion efficiencies (PCE) of 5.2 and 4.9% were obtained, respectively, which were much higher than that of the device using the traditional Pt CE (4.7%) when HQ/BQ electrolyte was employed. However, with the HQ/BQ redox shuttle, the efficiency of the devices sensitized by N719 is much lower than that of the devices when the traditional I(-)/I3(-) based electrolyte and Pt CE were employed (7.9%)."
According to the news reporters, the research concluded: "While for the CM309 sensitized solar cells, when the HQ/BQ redox shuttle was employed, PEDOT and MWNT performed much better than Pt, the DSSC using the PEDOT CE showed an efficiency of 6.2%, which was close to that of the DSSC using the traditional I(-)/I3(-) electrolyte and Pt CE (6."
For more information on this research see: Dye-sensitized solar cells based on hydroquinone/benzoquinone as bio-inspired redox couple with different counter electrodes. Physical Chemistry Chemical Physics, 2013;15(36):15146-52. ( Royal Society of Chemistry - www.rsc.org/ ; Physical Chemistry Chemical Physics - pubs.rsc.org/en/journals/journalissues/cp)
Our news correspondents report that additional information may be obtained by contacting M. Cheng, State Key Laboratory of Fine Chemicals, DUT-KTH Joint Education and Research Centre on Molecular Devices, Dalian University of Technology (DUT), 2 Linggong Rd, 116024 Dalian, People's Taiwan. Additional authors for this research include X. Yang, C. Chen, J. Zhao, F. Zhang and L. Sun.
SOURCE : Chemicals & Chemistry