Elena Chitanu got the degree in Materials Science and Engineering in 2007 at Faculty of Applied Chemistry and Material Science, Politehnica University of Bucharest. She has been involved in research activities since 2007 at National Institute for Research for Electrical Engineering ICPE-CA Bucharest . She is currently working on thePhD thesis focused on characterization of TCOs (AZO) produced by sputtering . This work is being developed in materials research center, CENIMAT, Universidade Nova de Lisboa under supervision of Prof. Elvira Fortunato and Prof. Ionita Gheorghe of University Valahia Targoviste.