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Data from: Soluble hexamethyl-substituted subphthalocyanine as a dopant-free hole transport material for planar perovskite solar cells

Citation

Wang, Feng et al. (2018), Data from: Soluble hexamethyl-substituted subphthalocyanine as a dopant-free hole transport material for planar perovskite solar cells, Dryad, Dataset, https://doi.org/10.5061/dryad.3d7c900

Abstract

Boron subphthalocyanine (SubPc) has special physical and chemical properties, originating from its non-centrosymmetric, near-planar taper structure and large conjugated system; it can act as an alternative to the small molecule hole-transporting material 2,2’,7,7’-tetrakis-(N,N-di-p-methoxyphenylamine)-9,9’-spirobifluorene in perovskite solar cells. To achieve a higher solubility in common organic solvents and a more suitable highest occupied molecular orbital (HOMO) energy level that aligns with the valence band of the perovskite material, a SubPc molecule with a hexamethyl substitution at its peripheral position (Me6-SubPc) was successfully designed and synthesized in a one-step method. Completely solution processed perovskite solar cells were fabricated with only a small hysteresis, a power conversion efficiency (PCE) of 6.96% and Voc of 0.986 V.

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