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Effect of the Ancil...
Effect of the Ancillary Ligand on the Performance of Heteroleptic Cu(I) Diimine Complexes as Dyes in Dye-Sensitized Solar Cells
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- Franchi, Daniele (författare)
- KTH,Organisk kemi,Molekylär elektronik, CMD,Inst Chem Organometall Cpds CNR ICCOM, I-50019 Sesto Fiorentino, Italy.;KTH Royal Inst Technol, Ctr Mol Devices, Dept Chem, Div Organ Chem, SE-10044 Stockholm, Sweden.
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- Leandri, Valentina (författare)
- KTH,Tillämpad fysikalisk kemi,Molekylär elektronik, CMD,KTH Royal Inst Technol, Ctr Mol Devices, Dept Chem, Div Appl Phys Chem, SE-10044 Stockholm, Sweden.
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- Pizzichetti, Angela Raffaella Pia (författare)
- KTH,Tillämpad fysikalisk kemi,Molekylär elektronik, CMD,KTH Royal Inst Technol, Ctr Mol Devices, Dept Chem, Div Appl Phys Chem, SE-10044 Stockholm, Sweden.
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- Xu, Bo (författare)
- Uppsala universitet,KTH,Skolan för kemi, bioteknologi och hälsa (CBH),Uppsala Univ, Ctr Mol Devices, Dept Chem, Div Phys Chem,Angstrom Lab, SE-75120 Uppsala, Sweden.,Institutionen för kemi - Ångström
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- Hao, Yan (författare)
- KTH,Tillämpad fysikalisk kemi,Molekylär elektronik, CMD,KTH Royal Inst Technol, Ctr Mol Devices, Dept Chem, Div Appl Phys Chem, SE-10044 Stockholm, Sweden.
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- Zhang, Wei (författare)
- KTH,Tillämpad fysikalisk kemi,Molekylär elektronik, CMD,KTH Royal Inst Technol, Ctr Mol Devices, Dept Chem, Div Appl Phys Chem, SE-10044 Stockholm, Sweden.
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- Sloboda, Tamara (författare)
- KTH,Tillämpad fysikalisk kemi,Molekylär elektronik, CMD,KTH Royal Inst Technol, Ctr Mol Devices, Dept Chem, Div Appl Phys Chem, SE-10044 Stockholm, Sweden.
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- Svanström, Sebastian (författare)
- Uppsala universitet,Energimaterialens fysik
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- Cappel, Ute B. (författare)
- KTH,Tillämpad fysik,Tillämpad fysikalisk kemi,KTH Royal Inst Technol, Ctr Mol Devices, Dept Chem, Div Appl Phys Chem, SE-10044 Stockholm, Sweden.
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- Kloo, Lars (författare)
- KTH,Molekylär elektronik, CMD,Tillämpad fysikalisk kemi,KTH Royal Inst Technol, Ctr Mol Devices, Dept Chem, Div Appl Phys Chem, SE-10044 Stockholm, Sweden.
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- Sun, Licheng, 1962- (författare)
- KTH,Molekylär elektronik, CMD,Organisk kemi,KTH Royal Inst Technol, Ctr Mol Devices, Dept Chem, Div Organ Chem, SE-10044 Stockholm, Sweden.;Westlake Univ, Ctr Artificial Photosynth Solar Fuels, Sch Sci, Hangzhou 310024, Peoples R China.
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- Gardner, James M., 1982- (författare)
- KTH,Molekylär elektronik, CMD,Tillämpad fysikalisk kemi,KTH Royal Inst Technol, Ctr Mol Devices, Dept Chem, Div Appl Phys Chem, SE-10044 Stockholm, Sweden.
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(creator_code:org_t)
- 2022-01-13
- 2022
- Engelska.
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Ingår i: ACS Applied Energy Materials. - : American Chemical Society (ACS). - 2574-0962. ; 5:2, s. 1460-1470
- Relaterad länk:
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https://doi.org/10.1...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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https://urn.kb.se/re...
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Abstract
Ämnesord
Stäng
- A series of heteroleptic Cu(I) diimine complexes with different ancillary ligands and 6,6'-dimethyl-2,2'-bipyridine-4,4'-dibenzoic acid (dbda) as the anchoring ligand were selfassembled on TiO2 surfaces and used as dyes for dye-sensitized solar cells (DSSCs). The binding to the TiO2 surface was studied by hard X-ray photoelectron spectroscopy for a brominecontaining complex, confirming the complex formation. The performance of all complexes was assessed and rationalized on the basis of their respective ancillary ligand. The DSSC photocurrent-voltage characteristics, incident photon-to-current conversion efficiency (IPCE) spectra, and calculated lowest unoccupied molecular orbital (LUMO) distributions collectively show a push-pull structural dye design, in which the ancillary ligand exhibits an electron-donating effect that can lead to improved solar cell performance. By analyzing the optical properties of the dyes and their solar cell performance, we can conclude that the presence of ancillary ligands with bulky substituents protects the Cu(I) metal center from solvent coordination constituting a critical factor in the design of efficient Cu(I)-based dyes. Moreover, we have identified some components in the I-/I-3(-)-based electrolyte that causes dissociation of the ancillary ligand, i.e., TiO2 photoelectrode bleaching. Finally, the detailed studies on one of the dyes revealed an electrolyte-dye interaction, leading to a dramatic change of the dye properties when adsorbed on the TiO2 surface.
Ämnesord
- NATURVETENSKAP -- Kemi -- Fysikalisk kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Physical Chemistry (hsv//eng)
- NATURVETENSKAP -- Kemi -- Materialkemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Materials Chemistry (hsv//eng)
Nyckelord
- DSSC
- diimine copper(I) complexes
- copper photosensitizers
- in situ assembling
- heteroleptic complexes
- hard X-ray photoelectron spectroscopy
- push-pull
- density functional theory calculation
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Franchi, Daniele
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Leandri, Valenti ...
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Pizzichetti, Ang ...
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Xu, Bo
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Hao, Yan
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Zhang, Wei
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visa fler...
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Sloboda, Tamara
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Svanström, Sebas ...
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Cappel, Ute B.
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Kloo, Lars
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Sun, Licheng, 19 ...
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Gardner, James M ...
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