Blue sensitive sub-band gap negative photoconductance in SnO<sub>2</sub>/TiO<sub>2</sub> NP bilayer oxide transistor
Utkarsh Pandey, Nila Pal, Arpan Ghosh, Swati Suman, Sajal Biring, Bhola Nath Pal
Abstract
Large negative photoconductance (NPC) of SnO 2 /TiO 2 nanoparticles (NPs) heterostructure has been observed with thin film transistor (TFT) geometry and has been investigated using sub-bandgap light (blue) illumination.
Topics & Concepts
Materials scienceOptoelectronicsHeterojunctionBilayerBand gapTransistorOxidePhotoconductivityThin-film transistorNanotechnologyChemistryMembraneLayer (electronics)VoltagePhysicsMetallurgyBiochemistryQuantum mechanicsNanowire Synthesis and ApplicationsZnO doping and propertiesGas Sensing Nanomaterials and Sensors