University of Engineering and Technology;
VNU in Hanoi;
Hanoi;
Vietnam;
University of Natural Science;
VNU in HoChiMinh City;
Ho Chi Minh City;
Vietnam;
Department of Physics;
Concordia University;
Montreal;
Canada;
PEDOT:PSS+nc-TiO2; Composite; UV-Vis; Spectra; J-V; Characteristic; Thermal; Sensing; Property; Hole; Transport; Layer; NH3; Gas; Sensing;