Panchromatic ternary organic solar cells with 9.44% efficiency incorporating porphyrin-based donors
Abstract
In an effort to improve the short-circuit current and fill factor, organic solar cells have been developed with ternary blending in a single bulk heterojunction active layer. We report here several all small molecule organic solar cells based on ternary bulk heterojunction active layers. These layers consist of two small molecule porphyrin donors (MV71 and MV72), which have the same backbone but different end-capping acceptor units, and PC71BM as the acceptor. The organic solar cells showed overall power conversion efficiencies of 3.21% and 4.03% for the as-cast MV71:PC71BM and MV72:PC71BM binary active layers, respectively. However, the power conversion efficiency of the ternary active layer, i.e., MV71:MV72:PC71BM (0.2 : 0.8 : 2), was 6.72% and this is higher than the two binary active layer counterparts. The enhancement in the PCE of the ternary active layer is mainly related to the improvement in both the short-circuit current and fill factor and is related to the synergistic effect of the good miscibility of the two donors and improved hole transportation due to the slightly deeper highest occupied molecular orbital energy level of MV72 than MV71. The PCE was further improved to 9.44% with an enhanced short-circuit current and fill factor when the ternary active layer was subjected to solvent vapour annealing for 40 seconds. The ternary organic solar cells showed higher values of the incident photon to current conversion efficiency across the entire wavelength region whe…
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The E4:E23:PC71BM (0.2:0.8:2) based ternary device showed an efficiency of 9.44%.
“The E4 : E23 : PC71BM (0.2 : 0.8 : 2) based device showed an e ffi ciency of 9.44%.”
From Recent progress in porphyrin-based materials for organic solar cells (2018) · cites this paper as [151]
Ternary OSCs with E4/E23 showed higher incident photon-to-current conversion efficiency across the entire wavelength region compared to their binary counterparts.
“The ternary organic solar cells showed higher values of incident photon-to-current conversion e ffi ciency across the entire wavelength region when compared to their binary counterparts.”
From Recent progress in porphyrin-based materials for organic solar cells (2018) · cites this paper as [151]
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
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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
- Vartanian, M., de la Cruz, P., Biswas, S., Sharma, G. D., & Langa, F.
- Affiliations
- University of Castilla-La Mancha (ES)
- Universidad de Castilla-La Mancha
- LNM Institute of Information Technology (IN)
- Corresponding author
- Sharma, Ganesh D.
- Langa, Fernando
- Venue
- Nanoscale
- Publisher
- Royal Society of Chemistry (RSC)
- Published
- 2018
- Volume
- 10
- Issue
- 25
- Pages
- 12100-12108
- ISSN
- 2040-3364 (ISSN-L)
- 2040-3372
- OpenAlex
- W2803404993
- Cited by
- 21
- References
- 1
- Citations by year
- 2025: 1 · 2024: 3 · 2023: 2 · 2022: 3 · 2021: 3 · 2020: 3 · 2019: 3 · 2018: 3
- FWCI
- 1.15
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Nanoscale (publishedVersion)
- PubMed (publishedVersion)
- Funders
- Department of Science and Technology, Ministry of Science and Technology (DST/TMD/SERI/D05 (C))
- Secretaría de Estado de Investigación, Desarrollo e Innovación (CTQ2016-79189-R)
- Topics
- Physical Sciences › Engineering › Electrical and Electronic Engineering › Organic Electronics and Photovoltaics
- Physical Sciences › Engineering › Electrical and Electronic Engineering › Organic Light-Emitting Diodes Research
- Health Sciences › Medicine › Pulmonary and Respiratory Medicine › Photodynamic Therapy Research Studies
- Keywords
- organic solar cells, ternary mixtures, bulk heterojunction, PC71BM, panchromatic absorption, short-circuit current, fill factor, donor-acceptor interface, charge transport, HOMO-LUMO energy levels, small molecule donor
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