@article{Royo:127048,
      author        = "Royo, Raquel and Sánchez, José G. and Li, Wenhui and
                       Martinez-Ferrero, Eugenia and Palomares, Emilio and Andreu,
                       Raquel and Franco, Santiago",
      title         = "{Novel spiro-core dopant-free hole transporting material
                       for planar inverted Perovskite solar cells}",
      year          = "2023",
}