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Enhancement of p-Type Dye-Sensitized Solar Cell Performance by Supramolecular Assembly of Electron Donor and Acceptor
KTH, School of Chemical Science and Engineering (CHE), Chemistry, Organic Chemistry.
KTH, School of Chemical Science and Engineering (CHE), Chemistry, Organic Chemistry.
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2014 (English)In: Scientific Reports, ISSN 2045-2322, Vol. 4, 4282- p.Article in journal (Refereed) Published
Abstract [en]

Supramolecular interactions based on porphyrin and fullerene derivatives were successfully adopted to improve the photovoltaic performance of p-type dye-sensitized solar cells (DSCs). Photoelectron spectroscopy (PES) measurements suggest a change in binding configuration of ZnTCPP after co-sensitization with C60PPy, which could be ascribed to supramolecular interaction between ZnTCPP and C60PPy. The performance of the ZnTCPP/C60PPy-based p-type DSC has been increased by a factor of 4 in comparison with the DSC with the ZnTCPP alone. At 560 nm, the IPCE value of DSCs based on ZnTCPP/C60PPy was a factor of 10 greater than that generated by ZnTCPP-based DSCs. The influence of different electrolytes on charge extraction and electron lifetime was investigated and showed that the enhanced V-oc from the Co2+/(3+)(dtbp)(3)-based device is due to the positive E-F shift of NiO.

Place, publisher, year, edition, pages
2014. Vol. 4, 4282- p.
Keyword [en]
Porphyrin-Fullerene Dyads, Open-Circuit Voltage, X-Ray Photoelectron, Photocurrent Generation, Photovoltaic Properties, Nanostructured Nio, Metal-Free, Photocathode, Chromophores, Monolayers
National Category
Engineering and Technology
URN: urn:nbn:se:kth:diva-143975DOI: 10.1038/srep04282ISI: 000332374500002ScopusID: 2-s2.0-84896800497OAI: diva2:710398
Swedish Research CouncilSwedish Energy AgencyKnut and Alice Wallenberg Foundation

QC 20140407

Available from: 2014-04-07 Created: 2014-04-04 Last updated: 2014-04-07Bibliographically approved

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