▎ 摘　　要

NOVELTY - Improving direct current model of liquid grid graphene field effect transistor comprises (i) obtaining the traditional GFET model, (ii) introducing the direction of the concentration parameter variable to the LG-GFET model obtained in the step (i), (iii) carrying out the result verification when the result of the verification is in accordance with the result, (iv) performing the improved concentration-related LG- GFET models obtained in step (ii), and (v) completing the improved operation of the traditional FET model. The method further comprises (vi) using a double-layer capacitance formula to replace the grid capacitive formula in the traditional Graphene (GFET) model to obtain the primary improved FET. The direction of introducing the concentration parameters variable is divided into two kinds of influence on the concentration of the detection object. USE - Method for improving direct current model of liquid grid graphene field-effect transistor in biological detection application. Can also be used in life science and circuit field. ADVANTAGE - The method utilizing the model to directly obtain the concentration of the detection object when detecting to obtain the electrical signal, improving the detection efficiency for the biological detection field, and improving the performance of the liquid grid graphene field-effect transistor (LG-GFET). DESCRIPTION OF DRAWING(S) - The drawing shows a flow chart illustrating a method for improving direct current model of liquid grid graphene field-effect transistor (Drawing includes non-English language text).