Nature Communications· 2014Q1
Aggregation and morphology control enables multiple cases of high-efficiency polymer solar cells
- 3,092citations
- Q1SCImago
- 2014year
Short summary
Researchers achieved high-efficiency (up to 10.8%) thick-film polymer solar cells with multiple donor polymer:fullerene combinations by controlling polymer aggregation to create near-ideal morphology with crystalline, small domains.
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Key points
- Achieved high-efficiency (up to 10.8%) polymer solar cells with multiple material combinations.
- Controlled polymer aggregation via temperature to create near-ideal morphology (crystalline, small domains).
- Morphology control is independent of fullerene choice.
- Developed three new high-efficiency donor polymers based on aggregation and design rules.
AI-generated from the title and abstract; the full text is not read.
Abstract
Although the field of polymer solar cell has seen much progress in device performance in the past few years, several limitations are holding back its further development. For instance, current high-efficiency (>9.0%) cells are restricted to material combinations that are based on limited donor polymers and only one specific fullerene acceptor. Here we report the achievement of high-performance (efficiencies up to 10.8%, fill factors up to 77%) thick-film polymer solar cells for multiple polymer:fullerene combinations via the formation of a near-ideal polymer:fullerene morphology that contains highly crystalline yet reasonably small polymer domains. This morphology is controlled by the temperature-dependent aggregation behaviour of the donor polymers and is insensitive to the choice of fullerenes. The uncovered aggregation and design rules yield three high-efficiency (>10%) donor polymers and will allow further synthetic advances and matching of both the polymer and fullerene materials, potentially leading to significantly improved performance and increased design flexibility.
The authors' abstract, as published at the source. Nature Communications, 2014 · DOI ↗
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Field: Electrical and Electronic Engineering
Electrical and Electronic EngineeringEngineering