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dc.contributor.authorKarani, Arfaen
dc.contributor.authorYang, Len
dc.contributor.authorBai, Sen
dc.contributor.authorFutscher, MHen
dc.contributor.authorSnaith, HJen
dc.contributor.authorEhrler, Ben
dc.contributor.authorGreenham, Neilen
dc.contributor.authorDi, Daweien
dc.description© 2018 American Chemical Society. Metal-halide perovskite-based tandem solar cells show great promise for overcoming the Shockley-Queisser single-junction efficiency limit via low-cost tandem structures, but so far, they employ conventional bottom-cell materials that require stringent processing conditions. Meanwhile, difficulty in achieving low-bandgap (<1.1 eV) perovskites limits all-perovskite tandem cell development. Here we propose a tandem cell design based on a halide perovskite top cell and a chalcogenide colloidal quantum dot (CQD) bottom cell, where both materials provide bandgap tunability and solution processability. A theoretical efficiency of 43% is calculated for tandem-cell bandgap combinations of 1.55 (perovskite) and 1.0 eV (CQDs) under 1-sun illumination. We highlight that intersubcell radiative coupling contributes significantly (>11% absolute gain) to the ultimate efficiency via photon recycling. We report an initial experimental demonstration of a solution-processed monolithic perovskite/CQD tandem solar cell, showing evidence for subcell voltage addition. We model that a power conversion efficiency of 29.7% is possible by combining state-of-the-art perovskite and CQD solar cells.en
dc.rightsAttribution 4.0 Internationalen
dc.rightsAttribution 4.0 Internationalen
dc.rightsAttribution 4.0 Internationalen
dc.rightsAttribution 4.0 Internationalen
dc.titlePerovskite/Colloidal Quantum Dot Tandem Solar Cells: Theoretical Modeling and Monolithic Structureen
dc.contributor.orcidKarani, Arfa [0000-0002-9038-1593]
dc.contributor.orcidFutscher, MH [0000-0001-8451-5009]
dc.contributor.orcidSnaith, HJ [0000-0001-8511-790X]
dc.contributor.orcidGreenham, Neil [0000-0002-2155-2432]
dc.contributor.orcidDi, Dawei [0000-0003-0703-2809]
pubs.funder-project-idEPSRC (EP/M005143/1)
pubs.funder-project-idEPSRC (via Loughborough University) (EP/P02484X/1)

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Attribution 4.0 International
Except where otherwise noted, this item's licence is described as Attribution 4.0 International