Polymer homo-tandem solar cells with best efficiency of 11.3%.
basic_science · Level V
Where this comes from
- Record sourced from PubMed, PMID 25645197.
- Also identified by DOI 10.1002/adma.201404220.
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Abstract
Rational materials design and interface engineering are both essential to realize a high performance for tandem cells. Two identical bulk heterojunctions are connected in series using novel interconnection layers combining pH-neutral conjugated polyelectrolytes and a thin film of ZnO nanoparticles by a solution process. The best performing tandem cells achieve a power conversion efficiency of 11.3%, with 25% enhancement in efficiency compared with single cells, which arises primarily from the increased light absorption.