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Dye-sensitized solar cells based on hydroquinone/benzoquinone as bio-inspired redox couple with different counter electrodes
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2013 (English)In: Physical Chemistry, Chemical Physics - PCCP, ISSN 1463-9076, E-ISSN 1463-9084, Vol. 15, no 36, 15146-15152 p.Article in journal (Refereed) Published
Abstract [en]

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. 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-/I-3(-) based electrolyte and Pt CE were employed (7.9%). 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-/I-3(-) electrolyte and Pt CE (6.3%).

Place, publisher, year, edition, pages
2013. Vol. 15, no 36, 15146-15152 p.
Keyword [en]
Conversion Efficiencies, Low-Cost, Performance, Films, Poly(3, 4-Ethylenedioxythiophene), Nanotubes
National Category
Physical Sciences Chemical Sciences
URN: urn:nbn:se:kth:diva-129135DOI: 10.1039/c3cp51980eISI: 000323520600035ScopusID: 2-s2.0-84882935209OAI: diva2:652320
Swedish Energy AgencyKnut and Alice Wallenberg Foundation

QC 20130930

Available from: 2013-09-30 Created: 2013-09-19 Last updated: 2013-09-30Bibliographically approved

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Sun, Licheng
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