Engineering ligand reactivity enables high-temperature operation of stable perovskite solar cells.

Autor: Park SM; Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, Ontario M5S 3G4, Canada., Wei M; Laboratory of Photonics and Interfaces, Ecole Polytechnique Fédérale de Lausanne, 1015 Lausanne, Switzerland., Xu J; Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, Ontario M5S 3G4, Canada., Atapattu HR; Department of Chemistry, University of Kentucky, Lexington, KY 40506, USA., Eickemeyer FT; Laboratory of Photonics and Interfaces, Ecole Polytechnique Fédérale de Lausanne, 1015 Lausanne, Switzerland., Darabi K; Department of Materials Science and Engineering, and Organic and Carbon Electronics Laboratories (ORaCEL), North Carolina State University, Raleigh, NC 27695, USA., Grater L; Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, Ontario M5S 3G4, Canada., Yang Y; Department of Chemistry, Northwestern University, Evanston, IL 60208, USA., Liu C; Department of Chemistry, Northwestern University, Evanston, IL 60208, USA., Teale S; Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, Ontario M5S 3G4, Canada., Chen B; Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, Ontario M5S 3G4, Canada.; Department of Chemistry, Northwestern University, Evanston, IL 60208, USA., Chen H; Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, Ontario M5S 3G4, Canada., Wang T; Department of Materials Science and Engineering, and Organic and Carbon Electronics Laboratories (ORaCEL), North Carolina State University, Raleigh, NC 27695, USA., Zeng L; Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, Ontario M5S 3G4, Canada., Maxwell A; Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, Ontario M5S 3G4, Canada., Wang Z; Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, Ontario M5S 3G4, Canada., Rao KR; Department of Chemistry, University of Kentucky, Lexington, KY 40506, USA., Cai Z; Department of Chemical and Materials Engineering, University of Kentucky, Lexington, KY 40506, USA., Zakeeruddin SM; Laboratory of Photonics and Interfaces, Ecole Polytechnique Fédérale de Lausanne, 1015 Lausanne, Switzerland., Pham JT; Department of Chemical and Materials Engineering, University of Kentucky, Lexington, KY 40506, USA., Risko CM; Department of Chemistry, University of Kentucky, Lexington, KY 40506, USA., Amassian A; Department of Materials Science and Engineering, and Organic and Carbon Electronics Laboratories (ORaCEL), North Carolina State University, Raleigh, NC 27695, USA., Kanatzidis MG; Department of Chemistry, Northwestern University, Evanston, IL 60208, USA., Graham KR; Department of Chemistry, University of Kentucky, Lexington, KY 40506, USA., Grätzel M; Laboratory of Photonics and Interfaces, Ecole Polytechnique Fédérale de Lausanne, 1015 Lausanne, Switzerland., Sargent EH; Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, Ontario M5S 3G4, Canada.; Department of Chemistry, Northwestern University, Evanston, IL 60208, USA.; Department of Electrical and Computer Engineering, Northwestern University, Evanston, IL 60208, USA.
Jazyk: angličtina
Zdroj: Science (New York, N.Y.) [Science] 2023 Jul 14; Vol. 381 (6654), pp. 209-215. Date of Electronic Publication: 2023 Jul 13.
DOI: 10.1126/science.adi4107
Abstrakt: Perovskite solar cells (PSCs) consisting of interfacial two- and three-dimensional heterostructures that incorporate ammonium ligand intercalation have enabled rapid progress toward the goal of uniting performance with stability. However, as the field continues to seek ever-higher durability, additional tools that avoid progressive ligand intercalation are needed to minimize degradation at high temperatures. We used ammonium ligands that are nonreactive with the bulk of perovskites and investigated a library that varies ligand molecular structure systematically. We found that fluorinated aniliniums offer interfacial passivation and simultaneously minimize reactivity with perovskites. Using this approach, we report a certified quasi-steady-state power-conversion efficiency of 24.09% for inverted-structure PSCs. In an encapsulated device operating at 85°C and 50% relative humidity, we document a 1560-hour T 85 at maximum power point under 1-sun illumination.
Databáze: MEDLINE
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