Passivation Using Molecular Halides Increases Quantum Dot Solar Cell Performance.
basic_science · Level V
Where this comes from
- Record sourced from PubMed, PMID 26576685.
- Also identified by DOI 10.1002/adma.201503657.
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Abstract
A solution-based passivation scheme is developed featuring the use of molecular iodine and PbS colloidal quantum dots (CQDs). The improved passivation translates into a longer carrier diffusion length in the solid film. This allows thicker solar-cell devices to be built while preserving efficient charge collection, leading to a certified power conversion efficiency of 9.9%, which is a new record in CQD solar cells.