Modifying the Chemical Structure of a Porphyrin Small Molecule with Benzothiophene Groups for the Reproducible Fabrication of High Performance Solar Cells
Abstract
A porphyrin-based molecule DPPEZnP-BzTBO with bulky benzothiophene groups was designed and synthesized as an electron donor material for bulk heterojunction (BHJ) solar cells. The optimized devices under thermal annealing (TA) and then chloroform solvent vapor anneanling (SVA) for 80 s exhibited an outstanding power conversion efficiencie (PCE) of 9.08%. Contrasted with the smaller thienyl substituted analogues we reported previously, DPPEZnP-BzTBO-based BHJ solar cells exhibited a higher open circuit voltage due to the lower highest occupied molecular orbital energy level. The TA post-treatment of the active layers induced the formation of more crystallized components, and the subsequent SVA provided a driving force for the domain growth, resulting in more obvious phase segregation between the donor and the acceptor in nanoscale. Furthermore, the PCEs kept above 95% upon the further SVA treatment within the time range of 60 to 95 s probably because the bulky benzothiophene groups retard the too quick change of crystallinity, providing a wide processing window for the reproducible device fabrication.
Integrity signals
Registry
Cites
Statistics
Claims the paper makes
Claims other papers make about this one
Each is checked against this paper’s own text: does it say what the citing paper says it does?
The optimized D9 device exhibited a PCE of 9.08% after thermal annealing and chloroform solvent vapor annealing for 80 s.
“The optimized device upon thermal annealing and then chloroform solvent vapor annealing for 80 s exhibited an outstanding PCE of 9.08%.”
From Recent progress in porphyrin-based materials for organic solar cells (2018) · cites this paper as [93]
The incorporation of these materials as electron donors has resulted in an increased PCE of 9%.
“The incorporation of these materials as electron donors has resulted in an increased PCE of 9%.”
From Recent progress in porphyrin-based materials for organic solar cells (2018) · cites this paper as [93]
Cites
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
Flagged first, then by citations
Cited by
Sorted by citations
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
- Liang, T., Xiao, L., Gao, K., Xu, W., Peng, X., & Cao, Y.
- Affiliations
- State Key Laboratory of Luminescent Materials and Devices (CN)
- Corresponding author
- Peng, Xiaobin
- Venue
- ACS Applied Materials & Interfaces
- Publisher
- American Chemical Society (ACS)
- Published
- 2017-02-17
- Volume
- 9
- Issue
- 8
- Pages
- 7131-7138
- ISSN
- 1944-8244 (ISSN-L)
- 1944-8252
- OpenAlex
- W2586073638
- Cited by
- 60
- References
- 1
- Citations by year
- 2026: 2 · 2024: 1 · 2023: 1 · 2022: 7 · 2021: 4 · 2020: 7 · 2019: 13 · 2018: 12 · 2017: 13
- FWCI
- 5.12
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- ACS Applied Materials & Interfaces (publishedVersion)
- PubMed (publishedVersion)
- Funders
- Ministry of Science and Technology of the People's Republic of China (2010DFA52150, 2013DFG52740)
- National Natural Science Foundation of China (51073060, 51473053)
- Topics
- Physical Sciences › Engineering › Electrical and Electronic Engineering › Organic Electronics and Photovoltaics
- Physical Sciences › Energy › Renewable Energy, Sustainability and the Environment › TiO2 Photocatalysis and Solar Cells
- Physical Sciences › Materials Science › Materials Chemistry › Porphyrin and Phthalocyanine Chemistry
- Keywords
- electron donor materials, bulk heterojunction solar cells, annealing, solvent vapor annealing, power conversion efficiency, open-circuit voltage, HOMO energy level, phase segregation, crystallinity, process window, device reproducibility
About these checks
Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
Statistics and arithmetic are recomputed, not judged.
Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.
What counts as a claim ›How we measure confidence ›How we check this ›
Are you an author, or do you see a problem with this page? Request a review
