“…Among TCOs, materials such as indium oxide (IO), tin oxide (TO) or tin-doped indium oxide (ITO) [1][2][3][4][5][6] and emerging alternatives such as graphene and Cu or Ag NWs for example [7,8], have been a consistent focus of research interest [9] where transparency is a useful visible range or indeed other wavelength regions of interest, is matched by sheet resistances below 10 Ω/□ [10]. ITO is the TCO used most often and its applications vary from thin film transistors [2,6,[11][12][13], optical circuits [14], displays [15,16], touch screens [17], and also as a transparent contact in solar cells [5,[18][19][20].…”