000255651 001__ 255651
000255651 005__ 20190317000959.0
000255651 0247_ $$2doi$$a10.1038/s41563-018-0115-4
000255651 02470 $$2DOI$$a10.1038/s41563-018-0115-4
000255651 037__ $$aARTICLE
000255651 245__ $$aFully textured monolithic perovskite/silicon tandem solar cells with 25.2% power conversion efficiency
000255651 260__ $$c2018-06-11
000255651 269__ $$a2018-06-11
000255651 336__ $$aJournal Articles
000255651 520__ $$aTandem devices combining perovskite and silicon solar cells are promising candidates to achieve power conversion efficiencies above 30% at reasonable costs. State-of-the-art monolithic two-terminal perovskite/silicon tandem devices have so far featured silicon bottom cells that are polished on their front side to be compatible with the perovskite fabrication process. This concession leads to higher potential production costs, higher reflection losses and non-ideal light trapping. To tackle this issue, we developed a top cell deposition process that achieves the conformal growth of multiple compounds with controlled optoelectronic properties directly on the micrometre-sized pyramids of textured monocrystalline silicon. Tandem devices featuring a silicon heterojunction cell and a nanocrystalline silicon recombination junction demonstrate a certified steady-state efficiency of 25.2%. Our optical design yields a current density of 19.5 mA cm−2 thanks to the silicon pyramidal texture and suggests a path for the realization of 30% monolithic.
000255651 536__ $$aSwiss federal funding$$cSI/501072-01
000255651 536__ $$aSwiss federal funding$$cNano-tera.ch Synergy
000255651 536__ $$aFNS$$cCRSII5_171000
000255651 536__ $$aFNS$$c407040
000255651 536__ $$aH2020$$c653296
000255651 542__ $$fCC BY-NC-ND
000255651 6531_ $$aMaterials for devices
000255651 6531_ $$aMaterials for energy and catalysis
000255651 6531_ $$aMaterials science
000255651 6531_ $$aSolar cells
000255651 6531_ $$aSolar energy and photovoltaic technology
000255651 700__ $$aSahli, Florent
000255651 700__ $$aWerner, Jérémie
000255651 700__ $$aKamino, Brett A.
000255651 700__ $$aBräuninger, Matthias
000255651 700__ $$aMonnard, Raphaël
000255651 700__ $$aPaviet-Salomon, Bertrand
000255651 700__ $$aBarraud, Loris
000255651 700__ $$aDing, Laura
000255651 700__ $$aDiaz Leon, Juan J.
000255651 700__ $$aSacchetto, Davide
000255651 700__ $$aCattaneo, Gianluca
000255651 700__ $$aDespeisse, Matthieu
000255651 700__ $$aBoccard, Mathieu
000255651 700__ $$aNicolay, Sylvain
000255651 700__ $$aJeangros, Quentin
000255651 700__ $$aNiesen, Bjoern
000255651 700__ $$aBallif, Christophe
000255651 773__ $$j17$$k9$$q820-826$$tNature Materials
000255651 8560_ $$fmatthias.brauninger@epfl.ch
000255651 8564_ $$s3717542$$uhttps://infoscience.epfl.ch/record/255651/files/Fully%20textured%20monolithic_manuscript_postprint.pdf$$zPOSTPRINT
000255651 8564_ $$s9008360$$uhttps://infoscience.epfl.ch/record/255651/files/SI%20-%20Fully%20textured%20monolithic.pdf$$zSupplementary Material
000255651 909C0 $$0252194$$mhassan.laaroussi@epfl.ch$$mchristophe.ballif@epfl.ch$$pPV-LAB$$xU11963
000255651 909CO $$ooai:infoscience.epfl.ch:255651$$pSTI$$particle$$qGLOBAL_SET
000255651 960__ $$aquentin.jeangros@epfl.ch
000255651 961__ $$aalain.borel@epfl.ch
000255651 973__ $$aEPFL$$rREVIEWED$$sPUBLISHED
000255651 980__ $$aARTICLE
000255651 981__ $$aoverwrite