Infrared Plasmonics of Al-Mn Codoped ZnO and In-M (M = Fe and Mn) Codoped CdO Nanocrystals

Abstract

Plasmonic properties in semiconductor nanocrystals have been an attracting area of research in recent years. Transparent conducting oxides (TCOs) like Al doped ZnO nanocrystals and indium doped cadmium oxide are semiconductor materials which show interesting plasmonic properties in the near to mid-IR region. Herein, we try to synthesize Al and Mn codoped ZnO nanocrystals and In and M (M= Fe and Mn) codoped CdO NCs to invoke plasmonic as well as magnetic properties simultaneously. We report AZO nanocrystals which exhibit plasmonic properties at wavelength longer than 2000 nm. We could also obtain In-Mn codoped CdO nanocrystals and In-Fe codoped CdO nanocrystals with plasmonic peaks in near-IR to mid-IR region. Effect of doping magnetic ions (Mn2+ and Fe3+) on plasmonic properties has been studied.