A Top‐Down Strategy to Engineer ActiveLayer Morphology for Highly Efficient and Stable All‐Polymer Solar Cells Article Swipe
Huiting Fu
,
Zhengxing Peng
,
Qunping Fan
,
Francis Lin
,
Qi Feng
,
Yixin Ran
,
Ziang Wu
,
Baobing Fan
,
Kui Jiang
,
Han Young Woo
,
Guanghao Lu
,
Harald Ade
,
Alex K.‐Y. Jen
·
YOU?
·
· 2022
· Open Access
·
· DOI: https://doi.org/10.1002/adma.202202608
YOU?
·
· 2022
· Open Access
·
· DOI: https://doi.org/10.1002/adma.202202608
A major challenge hindering the further development of all‐polymer solar cells (all‐PSCs) employing polymerized small‐molecule acceptors is the relatively low fill factor (FF) due to the difficulty in controlling the active‐layer morphology. The issues typically arise from oversized phase separation resulting from the thermodynamically unfavorable mixing between two macromolecular species, and disordered molecular orientation/packing of highly anisotropic polymer chains. Herein, a facile top‐down controlling strategy to engineer the morphology of all‐polymer blends is developed by leveraging the layer‐by‐layer (LBL) deposition. Optimal intermixing of polymer components can be achieved in the two‐step process by tuning the bottom‐layer polymer swelling during top‐layer deposition. Consequently, both the molecular orientation/packing of the bottom layer and the molecular ordering of the top layer can be optimized with a suitable top‐layer processing solvent. A favorable morphology with gradient vertical composition distribution for efficient charge transport and extraction is therefore realized, affording a high all‐PSC efficiency of 17.0% with a FF of 76.1%. The derived devices also possess excellent long‐term thermal stability and can retain >90% of their initial efficiencies after being annealed at 65 °C for 1300 h. These results validate the distinct advantages of employing an LBL processing protocol to fabricate high‐performance all‐PSCs.
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- Type
- article
- Language
- en
- Landing Page
- https://doi.org/10.1002/adma.202202608
- OA Status
- green
- Cited By
- 95
- References
- 58
- Related Works
- 10
- OpenAlex ID
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All OpenAlex metadata
Raw OpenAlex JSON
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https://openalex.org/W4283384556Canonical identifier for this work in OpenAlex
- DOI
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https://doi.org/10.1002/adma.202202608Digital Object Identifier
- Title
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A Top‐Down Strategy to Engineer ActiveLayer Morphology for Highly Efficient and Stable All‐Polymer Solar CellsWork title
- Type
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articleOpenAlex work type
- Language
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enPrimary language
- Publication year
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2022Year of publication
- Publication date
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2022-06-24Full publication date if available
- Authors
-
Huiting Fu, Zhengxing Peng, Qunping Fan, Francis Lin, Qi Feng, Yixin Ran, Ziang Wu, Baobing Fan, Kui Jiang, Han Young Woo, Guanghao Lu, Harald Ade, Alex K.‐Y. JenList of authors in order
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https://doi.org/10.1002/adma.202202608Publisher landing page
- Open access
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YesWhether a free full text is available
- OA status
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greenOpen access status per OpenAlex
- OA URL
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https://www.osti.gov/biblio/1975991Direct OA link when available
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Materials science, Morphology (biology), Polymer, Polymer science, Nanotechnology, Chemical engineering, Composite material, Engineering, Genetics, BiologyTop concepts (fields/topics) attached by OpenAlex
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95Total citation count in OpenAlex
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2025: 21, 2024: 37, 2023: 26, 2022: 11Per-year citation counts (last 5 years)
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58Number of works referenced by this work
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10Other works algorithmically related by OpenAlex
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| abstract_inverted_index.polymerized | 14 |
| abstract_inverted_index.top‐layer | 100, 125 |
| abstract_inverted_index.unfavorable | 45 |
| abstract_inverted_index.(all‐PSCs) | 12 |
| abstract_inverted_index.distribution | 135 |
| abstract_inverted_index.efficiencies | 173 |
| abstract_inverted_index.Consequently, | 102 |
| abstract_inverted_index.all‐polymer | 9, 71 |
| abstract_inverted_index.active‐layer | 31 |
| abstract_inverted_index.bottom‐layer | 96 |
| abstract_inverted_index.macromolecular | 49 |
| abstract_inverted_index.small‐molecule | 15 |
| abstract_inverted_index.thermodynamically | 44 |
| abstract_inverted_index.high‐performance | 197 |
| abstract_inverted_index.layer‐by‐layer | 78 |
| abstract_inverted_index.orientation/packing | 54, 106 |
| cited_by_percentile_year.max | 100 |
| cited_by_percentile_year.min | 99 |
| corresponding_author_ids | https://openalex.org/A5029163512 |
| countries_distinct_count | 4 |
| institutions_distinct_count | 13 |
| corresponding_institution_ids | https://openalex.org/I168719708, https://openalex.org/I201448701 |
| citation_normalized_percentile.value | 0.98756586 |
| citation_normalized_percentile.is_in_top_1_percent | True |
| citation_normalized_percentile.is_in_top_10_percent | True |