The synthesis and characterization of a family of indene-C-60 adducts obtained via Diels-Alder cycloaddition [4 + 2] are reported. The new C-60 derivatives include indenes with a variety of functional groups. These adducts show lowest unoccupied molecular orbital energy levels to be at the right position to consider these compounds as electron-transporting materials for planar heterojunction perovskite solar cells. Selected derivatives were applied into inverted (p-i-n configuration) perovskite device architectures, fabricated on flexible polymer substrates, with large active areas (1 cm(2)). The highest power conversion efficiency, reaching 13.61%, was obtained for the 6'-acetamido-1',4'-dihydro-naphtho [2',3':1,2][5,6]-fullerene-C-60 (NHAc-ICMA). Spectroscopic characterization was applied to visualize possible passivation effects of the perovskite's surface induced by these adducts.

Designing New Indene-Fullerene Derivatives as Electron-Transporting Materials for Flexible Perovskite Solar Cells

Radicchi, E.;
2021-01-01

Abstract

The synthesis and characterization of a family of indene-C-60 adducts obtained via Diels-Alder cycloaddition [4 + 2] are reported. The new C-60 derivatives include indenes with a variety of functional groups. These adducts show lowest unoccupied molecular orbital energy levels to be at the right position to consider these compounds as electron-transporting materials for planar heterojunction perovskite solar cells. Selected derivatives were applied into inverted (p-i-n configuration) perovskite device architectures, fabricated on flexible polymer substrates, with large active areas (1 cm(2)). The highest power conversion efficiency, reaching 13.61%, was obtained for the 6'-acetamido-1',4'-dihydro-naphtho [2',3':1,2][5,6]-fullerene-C-60 (NHAc-ICMA). Spectroscopic characterization was applied to visualize possible passivation effects of the perovskite's surface induced by these adducts.
2021
fullerene, electron transport material, Diels-Alder
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11562/1145847
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