Triazine-Bridged Porphyrin Triad as Electron Donor for Solution-Processed Bulk Hetero-Junction Organic Solar Cells
Abstract
In this report we describe the use of a novel porphyrin triad (PPT) consisting of two zinc-metalated porphyrin units and one free-base porphyrin unit covalently linked through their peripheral amino-phenyl groups to a central s-triazine unit, in combination with PC 70 BM ([6,6]-phenyl C 70 butyric acid methyl ester), as electron donor and electron acceptors, respectively, for the fabrication of small-molecule based, solution-processed, bulk heterojunction (BHJ) organic solar cells. Photoluminescence studies of PPT:PC 70 BM blend films indicated that charge transfer is possible from PPT to PC 70 BM molecules. The solution-processed BHJ organic solar cell with the PPT:PC 70 BM blend in 1:1 weight ratio, processed from THF, was found to exhibit an overall power conversion efficiency (PCE) of 2.85%. When the BHJ active layer of PPT:PC 70 BM was processed from a 5% v/v mixture of 1-chloronaphathalene (CN) in THF, the PCE of the solar cell was increased up to 3.93%. This was attributed to the enhancement of the short circuit current J sc of the solar cell, which was ascribed to a stronger and broader incident photon to current efficiency (IPCE) response and to the higher degree of crystallinity of the active layer of the latter solar cell. The different surface morphologies of the two differently processed active layers result in different electron transport kinetics, and, as shown by electrochemical impedance spectra (EIS) and relaxation time measurements, the device with the acti…
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The HOMO and LUMO values of G3 were found to be −5.63 and −3.55 eV, respectively, while the HOMO and LUMO energy levels of PC70BM were −6.2 and −3.95 eV; the difference in the LUMO energy levels of the donor and acceptor is 0.47 eV.
“The HOMO and LUMO values of G3 were found to be 5.63 and 3.55 eV, respectively, while the HOMO and LUMO energy levels of PC70BM were 6.2 and 3.95 eV; the di ff erence in the LUMO energy levels of the donor and acceptor is 0.47 eV.”
From Recent progress in porphyrin-based materials for organic solar cells (2018) · cites this paper as [126]
Balancing the effect of CN/THF solvent mixture on the charge-transporting properties might be an additional reason for the enhanced Jsc and PCE values of the G3 based device.
“Also, balancing the e ff ect of CN/THF solvent mixture on the charge-transporting properties might be an additional reason for the enhanced J sc and PCE values of the G3 based device”
From Recent progress in porphyrin-based materials for organic solar cells (2018) · cites this paper as [126]
BHJ OSCs based on G3:PC71BM (1:1) gave a PCE of 2.85%; their performance was further improved to 3.93% with the addition of 1-CN (5% v/v).
“BHJ OSCs based on G3 : PC71BM (1 : 1) gave a PCE of 2.85%; their performance was further improved to 3.93% with the addition of 1-CN (5% v/v).”
From Recent progress in porphyrin-based materials for organic solar cells (2018) · cites this paper as [126]
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Recent progress in porphyrin-based materials for organic solar cells
Mahmood, A., Hu, J.-Y., Xiao, B., Tang, A., Wang, X., & Zhou, E. (2018) · Journal of Materials Chemistry A · doi:10.1039/c8ta06392c · Cited by 311 · see citing works
Arrechea, S., Aljarilla, A., de la Cruz, P., Palomares, E., Sharma, G. D., & Langa, F. (2016) · Nanoscale · doi:10.1039/c6nr06374h · Cited by 27 · see citing works
Self-citation
- Authors
- Sharma, G. D., Zervaki, G. E., Angaridis, P. A., Kitsopoulos, T. N., & Coutsolelos, A. G.
- Affiliations
- R&D Centre for Engineering and Science, JEC Group of Colleges, Jaipur Engineering College Campus, Kukas, Jaipur, Raj 303101, India
- University of Crete (GR)
- Corresponding author
- Sharma, Ganesh D.
- Coutsolelos, Athanassios G.
- Venue
- The Journal of Physical Chemistry C
- Publisher
- American Chemical Society (ACS)
- Published
- 2014-03-11
- Volume
- 118
- Issue
- 11
- Pages
- 5968-5977
- ISSN
- 1932-7447 (ISSN-L)
- 1932-7455
- OpenAlex
- W2316689504
- Cited by
- 47
- References
- 0
- Citations by year
- 2024: 1 · 2023: 3 · 2022: 2 · 2021: 1 · 2020: 1 · 2019: 3 · 2018: 9 · 2017: 6 · 2016: 9 · 2015: 11 · 2014: 1
- FWCI
- 4.78
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- The Journal of Physical Chemistry C (publishedVersion)
- Topics
- Physical Sciences › Engineering › Electrical and Electronic Engineering › Organic Electronics and Photovoltaics
- Physical Sciences › Materials Science › Materials Chemistry › Porphyrin and Phthalocyanine Chemistry
- Health Sciences › Medicine › Pulmonary and Respiratory Medicine › Photodynamic Therapy Research Studies
- Keywords
- zinc porphyrin, free-base porphyrin, PC71BM, electron donors, organic bulk heterojunction solar cells, solution processing, charge transfer, exciton dissociation, short-circuit current, power conversion efficiency
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