Understanding the dopant induced effects on SFX-MeOTAD for perovskite solar cells: a spectroscopic and computational investigation† Fraser Gunn, a Paheli Ghosh,b Michal Maciejczyk,c Joseph Cameron, d Dennis Nordlund,e Satheesh Krishnamurthy, b Tell Tuttle, f Peter Skabara, d Neil Robertson c and Aruna Ivaturi *a Author affiliations * Corresponding authors a Smart Materials Research and Device Technology (SMaRDT) Group, Department of Pure and Applied Chemistry, University of Strathclyde,...