Enhancement of p-Type Dye-Sensitized Solar Cell Performance by Supramolecular Assembly of Electron Donor and Acceptor
2014 (English)In: Scientific Reports, ISSN 2045-2322, Vol. 4, 4282- p.Article in journal (Refereed) Published
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.
Porphyrin-Fullerene Dyads, Open-Circuit Voltage, X-Ray Photoelectron, Photocurrent Generation, Photovoltaic Properties, Nanostructured Nio, Metal-Free, Photocathode, Chromophores, Monolayers
Engineering and Technology
IdentifiersURN: urn:nbn:se:kth:diva-143975DOI: 10.1038/srep04282ISI: 000332374500002ScopusID: 2-s2.0-84896800497OAI: oai:DiVA.org:kth-143975DiVA: diva2:710398
FunderSwedish Research CouncilSwedish Energy AgencyKnut and Alice Wallenberg Foundation
QC 201404072014-04-072014-04-042014-04-07Bibliographically approved