Anaraki, EHKermanpur, AMayer, MTSteier, LAhmed, TTurren-Cruz, SHSeo, JYLuo, JSZakeeruddin, SMTress, WREdvinsson, TGratzel, MHagfeldt, ACorrea-Baena, JP2018-11-082018-11-082018-11-08201810.1021/acsenergylett.8b00055https://infoscience.epfl.ch/handle/20.500.14299/150537WOS:000430369600004Low-Temperature Nb-Doped SnO2 Electron-Selective Contact Yields over 20% Efficiency in Planar Perovskite Solar Cellstext::journal::journal article::research article