1results about How to "Improve field effect" patented technology

The application discloses a perovskite quantum dot / organic semiconductor single crystal heterojunction transistor and a preparation method thereof. The perovskite quantum dot / organic semiconductor single crystal heterojunction transistor comprises a gate, an insulating layer, a photosensitive layer, an active layer, a source and a drain. The gate, the insulating layer, the photosensitive layer and the active layer are arranged in parallel and connected in a vertical direction from bottom to top. The source and the drain are arranged in parallel and connected to the upper surface of the active layer. The photosensitive layer is a Cs2AgBiBr6 quantum dot film, and the active layer is a pentacene single crystal. The preparation method of the perovskite quantum dot / organic semiconductor single crystal heterojunction transistor comprises the following steps: covering the Cs2AgBiBr6 quantum dot film on the insulating layer as the photosensitive layer; transferring the pentacene single crystal to the upper surface of the photosensitive layer as the active layer; and arranging the source and the drain on the active layer. The perovskite quantum dot / organic semiconductor single crystal heterojunction transistor obtained by the application shows strong field effect, high on / off ratio and high hole mobility.