%0 Journal Article %A Urieta-Mora J. %A García-Benito I. %A Illicachi L.A. %A Calbo J. %A Aragó J. %A Molina-Ontoria A. %A Ortí E. %A Martín, Nazario %A Nazeeruddin M.K. %T Improving the Long-Term Stability of Doped Spiro-Type Hole-Transporting Materials in Planar Perovskite Solar Cells %D 2021 %U http://hdl.handle.net/20.500.12614/2757 %~