Mammo is professor of chemistry at Addis Ababa Univ., Ethiopia. He was educated at AAU and the Univ. of Bonn, Germany. He was chairman of the Dept. of Chemistry, AAU, (1997-99), editor and editor-in-chief of the Bull. Chem. Soc. Ethiop. (1993-96) and visiting professor at Chalmers Univ. of Technology, Gothenburg, Sweden (1996-2013). His major contributions are in the synthesis of a wide variety of polythiophenes and polyfluorene copolymers destined mainly for photovoltaic applications. Through support from ISP, Sweden, he established one of the best modern synthetic chemistry facilities in Africa at AAU, which gives strong support to materials research and training. He is the recipient of the 2012 CNR Rao Prize for scientific research. His research interests include natural products chemistry and the synthesis and characterization of conjugated polymers for photovoltaic applications.