Maria Covei (b. 1988) is part of the Renewable Energy Systems and Recycling Center in the Transilvania University of Brasov, Romania. Her field of expertise is on semiconductor oxides and chalcogenide thin films obtained through chemical deposition methods such as spray pyrolysis deposition (SPD) and the sol-gel technique. Her study of zinc oxide, titanium oxide, tin and tungsten oxide was aimed towards optoelectronic applications, with a particular focus on photocatalysis and photovoltaics. Her recent work focuses on the study of different composite structures based on metal oxide matrixes and carbon-based derivatives with tailored optical and photocatalytic properties for application as self-cleaning coatings.