▎ 摘　　要

NOVELTY - The transistor has a main body provided with a gate and source-drain electrodes. The main body is arranged with a gate insulating layer and an active layer. The gate insulating layer is made of a fluorine-doped graphene material. A surface of the source-drain electrodes is formed with the active layer. USE - Thin film transistor for array substrate (claimed). ADVANTAGE - The transistor improves the performance and stability of the thin-film-transistor (TFT). DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for an array substrate preparation method. DESCRIPTION OF DRAWING(S) - The drawing shows a sectional view of a thin film transistor.