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Record-Efficiency Printable Hole-Conductor-Free Mesoscopic Perovskite Solar Cells Enabled by the Multifunctional Schiff Base Derivative.
- Source :
-
Advanced materials (Deerfield Beach, Fla.) [Adv Mater] 2024 Jun; Vol. 36 (26), pp. e2401319. Date of Electronic Publication: 2024 Apr 03. - Publication Year :
- 2024
-
Abstract
- Tailoring multifunctional additives for performing interfacial modifications, improving crystallization, and passivating defects is instrumental for the fabrication of efficient and stable perovskite solar cells (PSCs). Here, a Schiff base derivative, (chloromethylene) dimethyliminium chloride (CDCl), is introduced as an additive to modify the interface between the mesoporous TiO <subscript>2</subscript> electron transport layer and the MAPbI <subscript>3</subscript> light absorber during the annealing process. CDCl chemically links to TiO <subscript>2</subscript> and MAPbI <subscript>3</subscript> through coordination and hydrogen bonding, respectively, and results in the construction of fast electron extraction channels. CDCl also optimizes the energy-level alignment of the TiO <subscript>2</subscript> /MAPbI <subscript>3</subscript> heterojunction and improves the pore-filling and crystallization of MAPbI <subscript>3</subscript> in the mesoscopic scaffold, which inhibits nonradiative recombination and eliminates open-circuit voltage losses. As a result, an impressive power conversion efficiency of 19.74%, which is the best one ever reported, is obtained for printable carbon-based hole-conductor-free PSCs based on MAPbI <subscript>3</subscript> .<br /> (© 2024 Wiley‐VCH GmbH.)
Details
- Language :
- English
- ISSN :
- 1521-4095
- Volume :
- 36
- Issue :
- 26
- Database :
- MEDLINE
- Journal :
- Advanced materials (Deerfield Beach, Fla.)
- Publication Type :
- Academic Journal
- Accession number :
- 38531370
- Full Text :
- https://doi.org/10.1002/adma.202401319