Nandy, Suman, Gonçalo Gonçalves, Joana Vaz Pinto, Tito Busani, Vitor Figueiredo, Lu\'?s Pereira, Rodrigo Ferrão {Paiva Martins}, and Elvira Fortunato. "{Current transport mechanism at metal-semiconductor nanoscale interfaces based on ultrahigh density arrays of p-type NiO nano-pillars.}." Nanoscale. 5 (2013): 11699-709.