Passivation Using Molecular Halides Increases Quantum Dot Solar Cell Performance
- 18 November 2015
- journal article
- research article
- Published by Wiley in Advanced Materials
- Vol. 28 (2), 299-304
- https://doi.org/10.1002/adma.201503657
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.Keywords
Funding Information
- Korea govenment Ministry of Knowledge Economy (2012T100100740)
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