Sodium Hydroxide Pretreatment as an Effective Approach to Reduce the Dye/Holes Recombination Reaction in P-Type DSCs

We report the synthesis of a novel squaraine dye (VG21-C12) and investigate its behavior as p-type sensitizer for p-type Dye-Sensitized Solar Cells. The results are compared with O4-C12, a well-known sensitizer for p-DSC, and sodium hydroxide pretreatment is described as an effective approach to red...

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Published inFrontiers in chemistry Vol. 7; p. 99
Main Authors Bonomo, Matteo, Barbero, Nadia, Naponiello, Gaia, Giordano, Marco, Dini, Danilo, Barolo, Claudia
Format Journal Article
LanguageEnglish
Published Switzerland Frontiers Media S.A 27.02.2019
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ISSN2296-2646
2296-2646
DOI10.3389/fchem.2019.00099

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Abstract We report the synthesis of a novel squaraine dye (VG21-C12) and investigate its behavior as p-type sensitizer for p-type Dye-Sensitized Solar Cells. The results are compared with O4-C12, a well-known sensitizer for p-DSC, and sodium hydroxide pretreatment is described as an effective approach to reduce the dye/holes recombination. Various variable investigation such as dipping time, dye loading, photocurrent, and resulting cell efficiency are also reported. Electrochemical impedance spectroscopy (EIS) was utilized for investigating charge transport properties of the different photoelectrodes and the recombination phenomena that occur at the (un)modified electrode/electrolyte interface.
AbstractList We report the synthesis of a novel squaraine dye (VG21-C12) and investigate its behavior as p-type sensitizer for p-type Dye-Sensitized Solar Cells. The results are compared with O4-C12, a well-known sensitizer for p-DSC, and sodium hydroxide pretreatment is described as an effective approach to reduce the dye/holes recombination. Various variable investigation such as dipping time, dye loading, photocurrent, and resulting cell efficiency are also reported. Electrochemical impedance spectroscopy (EIS) was utilized for investigating charge transport properties of the different photoelectrodes and the recombination phenomena that occur at the (un)modified electrode/electrolyte interface.
We report the synthesis of a novel squaraine dye (VG21-C12) and investigate its behavior as p-type sensitizer for p-type Dye-Sensitized Solar Cells. The results are compared with O4-C12, a well-known sensitizer for p-DSC, and sodium hydroxide pretreatment is described as an effective approach to reduce the dye/holes recombination. Various variable investigation such as dipping time, dye loading, photocurrent, and resulting cell efficiency are also reported. Electrochemical impedance spectroscopy (EIS) was utilized for investigating charge transport properties of the different photoelectrodes and the recombination phenomena that occur at the (un)modified electrode/electrolyte interface.We report the synthesis of a novel squaraine dye (VG21-C12) and investigate its behavior as p-type sensitizer for p-type Dye-Sensitized Solar Cells. The results are compared with O4-C12, a well-known sensitizer for p-DSC, and sodium hydroxide pretreatment is described as an effective approach to reduce the dye/holes recombination. Various variable investigation such as dipping time, dye loading, photocurrent, and resulting cell efficiency are also reported. Electrochemical impedance spectroscopy (EIS) was utilized for investigating charge transport properties of the different photoelectrodes and the recombination phenomena that occur at the (un)modified electrode/electrolyte interface.
Author Bonomo, Matteo
Naponiello, Gaia
Giordano, Marco
Dini, Danilo
Barbero, Nadia
Barolo, Claudia
AuthorAffiliation 2 Department of Chemistry and NIS Interdepartmental Centre and INSTM Reference Centre, University of Turin , Torino , Italy
1 Department of Chemistry, University of Rome “La Sapienza” , Rome , Italy
3 ICxT Interdepartmental Centre , Torino , Italy
AuthorAffiliation_xml – name: 2 Department of Chemistry and NIS Interdepartmental Centre and INSTM Reference Centre, University of Turin , Torino , Italy
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Keywords NaOH pretreatment
NIR Absorption
electrochemical impedance spectroscopy
p-type dye-sensitized solar cells
squaraines
recombination reaction
Language English
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Reviewed by: Adriano Sacco, Fondazione Istituto Italiano di Tecnologia, Italy; Francesca Tessore, University of Milan, Italy
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Snippet We report the synthesis of a novel squaraine dye (VG21-C12) and investigate its behavior as p-type sensitizer for p-type Dye-Sensitized Solar Cells. The...
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SubjectTerms Chemistry
electrochemical impedance spectroscopy
NaOH pretreatment
NIR Absorption
p-type dye-sensitized solar cells
recombination reaction
squaraines
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Title Sodium Hydroxide Pretreatment as an Effective Approach to Reduce the Dye/Holes Recombination Reaction in P-Type DSCs
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