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Novel organic dyes with anchoring group of quinoxaline-2, 3-diol and the application in dye-sensitized solar cells
KTH, School of Chemical Science and Engineering (CHE), Chemistry, Organic Chemistry.ORCID iD: 0000-0002-4521-2870
2015 (English)In: Dyes and pigments, ISSN 0143-7208, E-ISSN 1873-3743, Vol. 113, 581-587 p.Article in journal (Refereed) Published
Abstract [en]

Two organic quinoxaline dyes (WQ-1 and WQ-2) with a structure of quinoxaline-2, 3-diol as the electron withdrawing and anchoring group were synthesized and applied in the dye-sensitized solar cells. Fourier transform infrared spectroscopy and two other reference dyes (WQ-R1 and WQ-R2) without the hydroxyl groups were introduced to ascertain the adsorption properties of the dye series. The effect of the new electron acceptor and anchoring group on the performance of solar cells was investigated systematically. Under the standard light illumination (100 mW m(-2)), WQ-2 got an efficiency of 2.25%, with a short circuit photocurrent density of 5.51 mA cm(-2), an open circuit voltage of 0.612 V and a fill factor of 66.74%.

Place, publisher, year, edition, pages
2015. Vol. 113, 581-587 p.
Keyword [en]
DSSCs, Organic sensitizers, Quinoxaline-2, 3-diol, Anchoring group, FTIR, Hydroxyl group
National Category
Chemical Sciences
URN: urn:nbn:se:kth:diva-160046DOI: 10.1016/j.dyepig.2014.09.019ISI: 000346543200073ScopusID: 2-s2.0-84924282847OAI: diva2:793297
Swedish Energy AgencyKnut and Alice Wallenberg Foundation

QC 20150306

Available from: 2015-03-06 Created: 2015-02-13 Last updated: 2015-03-06Bibliographically approved

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