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Four novel polymeric metal complexes with a D-A-π-A motif, BDTT-PY-Cd, BDTT-PY-Zn, BDTT-PY-Cu and BDTT-PY-Ni, were designed, synthesized and characterized. These polymeric metal complexes were made up with Cd(Ⅱ), Zn(Ⅱ), Cu(Ⅱ), Ni(Ⅱ) complexes, thienylbenzo-[1,2-b:4,5-b'] dithiophene (BDTT) and the 8-quinolinol derivative, which were used severally as dye sensitzers’ auxiliary electron acceptors (A), electron donor (D) and π bridges as well as the acceptors (A). Under AM 1.5 irradiation (100 mW cm-2), the devices of dye sensitized solar cells (DSSC) based on four polymer complexes exhibited short-circuit photocurrent densities (Jsc) of 17.45 mA cm-2, 14.75 mA cm-2, 13.94 mA cm-2, and 12.00 mA cm-2, as well as attractive power conversion efficiencies (PCE) of were 9.73 %, 8.02 %, 6.82 % and 6.12 %, respectively. The photovoltaic conversion efficiency (PCE) and short-circuit photocurrent density (Jsc) of BDTT-PY-Cd, BDTT-PY-Zn, BDTT-PY-Cu and BDTT-PY-Ni decrease in order because the radius and charge number of the metal ion affect the strength of the coordination bond between the metal ion and the ligand. These results provides a new way of development for efficient and stable dye sensitizers in the future.
Keywords
polymeric metal complex, the coordination metals (Cd, Zn, Cu, Ni), auxiliary electron acceptor, dye-sensitized solar cells.
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- supportinginformation.docx
Supporting Information
- scheme1.tif
Scheme 1: Synthetic routes of four polymeric metal complexes BDTT-PY-Cd, BDTT-PY-Zn, BDTT-PY-Cu and BDTT-PY-Ni.
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Received 07 Nov, 2021
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This preprint is under consideration at Journal of Inorganic and Organometallic Polymers and Materials. A preprint is a preliminary version of a manuscript that has not completed peer review at a journal. Research Square does not conduct peer review prior to posting preprints. The posting of a preprint on this server should not be interpreted as an endorsement of its validity or suitability for dissemination as established information or for guiding clinical practice.
Learn more about In Review
Research Article
Badges
Prescreen
This manuscript passed our Prescreen assessment
Complete author information
Appropriate declaration statements
Potential risks to human health
Prescreen
Peer Review Timeline
CURRENT STATUS: Under Review
Version 1
Posted 09 Nov, 2021
No community comments so far
Reviews received
Received 07 Nov, 2021
Editor assigned
On 05 Nov, 2021
First submitted
On 04 Nov, 2021
Metrics
Comments: 0
PDF Downloads: ...
HTML Views: ...
Subject Areas
Materials Chemistry
License:
This work is licensed under a CC BY 4.0 License. Read Full License
Four novel polymeric metal complexes with a D-A-π-A motif, BDTT-PY-Cd, BDTT-PY-Zn, BDTT-PY-Cu and BDTT-PY-Ni, were designed, synthesized and characterized. These polymeric metal complexes were made up with Cd(Ⅱ), Zn(Ⅱ), Cu(Ⅱ), Ni(Ⅱ) complexes, thienylbenzo-[1,2-b:4,5-b'] dithiophene (BDTT) and the 8-quinolinol derivative, which were used severally as dye sensitzers’ auxiliary electron acceptors (A), electron donor (D) and π bridges as well as the acceptors (A). Under AM 1.5 irradiation (100 mW cm-2), the devices of dye sensitized solar cells (DSSC) based on four polymer complexes exhibited short-circuit photocurrent densities (Jsc) of 17.45 mA cm-2, 14.75 mA cm-2, 13.94 mA cm-2, and 12.00 mA cm-2, as well as attractive power conversion efficiencies (PCE) of were 9.73 %, 8.02 %, 6.82 % and 6.12 %, respectively. The photovoltaic conversion efficiency (PCE) and short-circuit photocurrent density (Jsc) of BDTT-PY-Cd, BDTT-PY-Zn, BDTT-PY-Cu and BDTT-PY-Ni decrease in order because the radius and charge number of the metal ion affect the strength of the coordination bond between the metal ion and the ligand. These results provides a new way of development for efficient and stable dye sensitizers in the future.
Figure 1
Figure 2
Figure 3
Figure 4
Figure 5
This is a list of supplementary files associated with this preprint. Click to download.
- supportinginformation.docx
Supporting Information
- scheme1.tif
Scheme 1: Synthetic routes of four polymeric metal complexes BDTT-PY-Cd, BDTT-PY-Zn, BDTT-PY-Cu and BDTT-PY-Ni.
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