Effect of gate voltage in few layer schottky graphene transistors at the presence of different ethanol concentrations - Gomez Armas, Luis Enrique; Gonzalez Huila, Manuel Fernando; Pojar, Mariana; Peres, Henrique Estanislau Maldonado; Ramírez Fernandez, Francisco Javier; Valle, Márcio de Almeida; Araki, Koiti; Toma, Henrique Eisi; Santos, Antonio Domingues dos; Seabra, Antonio Carlos (Brazilian MRS Meeting, 2012)