Photovoltaic Properties of a Porphyrin‐Containing Polymer as Donor in Bulk Heterojunction Solar Cells With Low Energy Loss
Abstract
A low bandgap D‐π‐A polymer (PPDPP; D = Zn‐porphyrin, A = diketopyrrolopyrrole, π = ethynyle linker) has been synthesized and used as an electron donor for the fabrication of solution processed bulk heterojunction polymer solar cells (PSCs). PC71BM is used as the electron acceptor. After the optimization of the PPDPP: PC71BM weight ratio in 2‐methyltetrahydrofuran (2‐MeTHF), the PSC based on PPDPP: PC71BM (1:2) showed an overall power conversion efficiency (PCE) of 4.18% with Jsc = 9.75 mA cm−2, Voc = 0.78 V, and FF = 0.54. After the thermal annealing (TA) and subsequent solvent vapor annealing (SVA) of the active layer, the resulting device showed an overall PCE of 6.44% (Jsc = 13.18 mA cm−2, Voc = 0.74 V, and FF = 0.66) with a small voltage loss of 0.51 eV. The improvement in PCE after the TA and SVA treatment of the active layer is attributed to an enhancement of Jsc and FF related to a more favorable nanoscale morphology for the exciton dissociation and charge transport as evidenced by the increased hole mobility.
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The lifetimes are consistent with the previously reported TCSPC results (500 and 200 ps).
“The lifetimes, s Fs, are consistent with the previously reported TCSPC results (500 and 200 ps).”
From Recent progress in porphyrin-based materials for organic solar cells (2018) · cites this paper as [41]
Bucher et al. synthesized a polymer of poly(porphyrin-diketopyrrolopyrrole) A30 and used it as a donor to combine with PC71BM.
“Bucher et al. synthesized a polymer of poly(porphyrin -diketopyrrolopyrrole) ( A30 ) and used it as a donor to combine with PC71BM.”
From Recent progress in porphyrin-based materials for organic solar cells (2018) · cites this paper as [41]
Decay-associated spectra extracted from the time-resolved emission spectra exhibit three components.
“Decay-associated spectra extracted from the TRES exhibit three components (Fig. 7b).”
From Recent progress in porphyrin-based materials for organic solar cells (2018) · cites this paper as [41]
Photoluminescence quenching efficiency indicates that the intermixing of donors and acceptors is necessary to form interpenetrating charge transporting networks.
“Photoluminescence (PL) quenching e ffi ciency indicates that the intermixing of donors and acceptors is necessary to form interpenetrating charge transporting networks.”
From Recent progress in porphyrin-based materials for organic solar cells (2018) · cites this paper as [41]
They used thermal annealing and subsequent solvent annealing, and the PCE increased from 4.18% to 6.44% with a low energy loss of 0.51 eV.
“They used thermal annealing (TA) and subsequent solvent annealing (SVA), and the PCE increased from 4.18% to 6.44% with a low energy loss of 0.51 eV. 41”
From Recent progress in porphyrin-based materials for organic solar cells (2018) · cites this paper as [41]
The long sF (426 ps) is associated with ICT fluorescence, whereas the two short components (136 and 38 ps) are attributed to J-aggregate emission between 850 and 900 nm.
“The long s F (426 ps) is associated with ICT uorescence whereas the two short components (136 and 38 ps) are attributed to J -aggregate emission between 850 and 900 nm.”
From Recent progress in porphyrin-based materials for organic solar cells (2018) · cites this paper as [41]
Cites
Solution-processed organic tandem solar cells with power conversion efficiencies >12%
Li, M., Gao, K., Wan, X., Zhang, Q., Kan, B., Xia, R., Liu, F., Yang, X., Feng, H., Ni, W., et al. (2017) · Nature Photonics · doi:10.1038/nphoton.2016.240 · Cited by 548 · see citing works
Wang, L., Shi, S., Ma, D., Chen, S., Gao, C., Wang, M., Shi, K., Li, Y., Li, X., & Wang, H. (2015) · Macromolecules · doi:10.1021/ma502050b · Cited by 39 · see citing works
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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
- Authors
- Bucher, L., Tanguy, L., Desbois, N., Karsenti, P., Harvey, P. D., Gros, C. P., & Sharma, G. D.
- Affiliations
- Centre National de la Recherche Scientifique (FR)
- Université de Sherbrooke (CA)
- LNM Institute of Information Technology (IN)
- Corresponding author
- Harvey, Pierre D.
- Gros, Claude P.
- Sharma, Ganesh D.
- Venue
- Solar RRL
- Publisher
- Wiley
- Published
- 2017-12-06
- Volume
- 2
- Issue
- 1
- ISSN
- 2367-198X (ISSN-L)
- OpenAlex
- W2774739770
- Cited by
- 13
- References
- 2
- Citations by year
- 2023: 2 · 2022: 2 · 2021: 1 · 2020: 2 · 2019: 4 · 2018: 2
- FWCI
- 0.91
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Solar RRL (publishedVersion)
- Funders
- Natural Sciences and Engineering Research Council of Canada
- Fonds Québécois de la Recherche sur la Nature et les Technologies
- Centre National de la Recherche Scientifique
- Topics
- Physical Sciences › Engineering › Electrical and Electronic Engineering › Organic Electronics and Photovoltaics
- Physical Sciences › Engineering › Electrical and Electronic Engineering › Organic Light-Emitting Diodes Research
- Physical Sciences › Engineering › Electrical and Electronic Engineering › Silicon and Solar Cell Technologies
- Keywords
- zinc porphyrin, diketopyrrolopyrrole, bulk heterojunction polymer solar cells, PC71BM, electron donors, low band gap polymers, annealing, solvent vapor annealing, active layer morphology, exciton dissociation, hole mobility, power conversion efficiency, voltage loss
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