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Enhancement of p-type dye-sensitized solar cell performance by supramolecular assembly of electron donor and acceptor.

ABSTRACT: 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 Voc from the Co(2+/3+)(dtbp)3-based device is due to the positive EF shift of NiO.

SUBMITTER: Tian H 

PROVIDER: S-EPMC3945487 | biostudies-literature | 2014 Mar

REPOSITORIES: biostudies-literature

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Enhancement of p-type dye-sensitized solar cell performance by supramolecular assembly of electron donor and acceptor.

Tian Haining H   Oscarsson Johan J   Gabrielsson Erik E   Eriksson Susanna K SK   Lindblad Rebecka R   Xu Bo B   Hao Yan Y   Boschloo Gerrit G   Johansson Erik M J EM   Gardner James M JM   Hagfeldt Anders A   Rensmo Håkan H   Sun Licheng L  

Scientific reports 20140307

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 comparis  ...[more]

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