Enhancement of p-Type Dye-Sensitized Solar Cell Performance by Supramolecular Assembly of Electron Donor and Acceptor

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-sensitiza...

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Detalles Bibliográficos
Autores principales: Tian, Haining, Oscarsson, Johan, Gabrielsson, Erik, Eriksson, Susanna K., Lindblad, Rebecka, Xu, Bo, Hao, Yan, Boschloo, Gerrit, Johansson, Erik M. J., Gardner, James M., Hagfeldt, Anders, Rensmo, Håkan, Sun, Licheng
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group 2014
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3945487/
https://www.ncbi.nlm.nih.gov/pubmed/24603319
http://dx.doi.org/10.1038/srep04282
Descripción
Sumario: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 Co(2+/3+)(dtbp)(3)-based device is due to the positive E(F) shift of NiO.

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