Performance Tin compounds 3 2D materials 2 2d material 2 Bias voltage 2 Bottom gate 2 C. thin film transistor (TFT) 2 Computer circuits 2 Conducting polymers 2 Cross sensitivity 2 Diffusion barriers 2 Efficiency 2 Electrical characteristic 2 Electrochemical electrodes 2 Electrolytes 2 Energy harvesting 2 Field effect transistors 2 Gate electrodes 2 Gold deposits 2 Graphene 2 Indium compounds 2 Ion-sensitive field effect transistors 2 Ionic strength 2 Magnetron sputtering 2 PEDOT:PSS 2 Poly(3,4-ethylene dioxythiophene): poly(styrene sulphonic acid) 2 Poly(styrene sulfonic acid) 2 Pseudo reference electrodes 2 R.F. magnetron sputtering 2 Radio-frequency-magnetron sputtering 2