Show simple item record

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.date.accessioned2018-03-14T06:13:50Z
dc.date.available2018-03-14T06:13:50Z
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/273978
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.rights.urihttp://creativecommons.org/licenses/by/4.0/en
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en
dc.titlePerovskite/Colloidal Quantum Dot Tandem Solar Cells: Theoretical Modeling and Monolithic Structureen
dc.typeDataset
dc.identifier.doi10.17863/CAM.21051
rioxxterms.licenseref.urihttp://creativecommons.org/licenses/by/4.0/en
rioxxterms.licenseref.startdate2018-04-13en
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]
rioxxterms.typeOtheren
pubs.funder-project-idEPSRC (EP/M005143/1)
pubs.funder-project-idEPSRC (via Loughborough University) (EP/P02484X/1)


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record

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