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

ABSTRACT: The synthesis and characterization of a family of indene-C60 adducts obtained via Diels-Alder cycloaddition [4 + 2] are reported. The new C60 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 cm2). 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-C60 (NHAc-ICMA). Spectroscopic characterization was applied to visualize possible passivation effects of the perovskite's surface induced by these adducts.

SUBMITTER: Przypis L 

PROVIDER: S-EPMC8802170 | biostudies-literature | 2021 Dec

REPOSITORIES: biostudies-literature

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

Przypis Lukasz L   Ahmad Taimoor T   Misztal Kasjan K   Honisz Damian D   Radicchi Eros E   Mosconi Edoardo E   Domagala Wojciech W   De Angelis Filippo F   Wojciechowski Konrad K  

The journal of physical chemistry. C, Nanomaterials and interfaces 20211203 49

The synthesis and characterization of a family of indene-C<sub>60</sub> adducts obtained <i>via</i> Diels-Alder cycloaddition [4 + 2] are reported. The new C<sub>60</sub> 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  ...[more]

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