Friction electric field effect transistor

Abstract

The invention discloses a friction electric field effect transistor, and belongs to the field of flexible electronic devices. A triboelectric effect and a semiconductor effect are combined; friction is produced by using external force; electrostatic potential is formed as a gate signal to realize adjustment and control over carrier transport characteristic in semiconductor. Mechanical effect stressed on the device can be converted into a local electronic control signal; a new method for adjusting and controlling the carrier transport characteristic in an electronic device by taking the electric potential produced by the friction effect as gate voltage. Different from the conventional field effect transistor, the electronic control signal is generated by the friction electric field transistor by using friction, the gate electrode in the conventional field effect transistor is substituted, direct interaction of the external force and the electronic device is realized, a wider external force sensing range is realized, and the transistor is widely applied to the fields such as human-computer interaction, sensors and flexible electronics.

Description

technical field [0001] The invention belongs to the field of flexible electronic devices, in particular to a triboelectric field effect transistor. Background technique [0002] The core technology of the field effect transistor is to control the current transport process in the element by using the gate voltage. Although field-effect transistor technology is very mature, in view of the three-terminal structure of the device unit, more complex integration methods are usually required, and pressure sensor devices made based on this type of technology lack a mechanism for direct interaction between the external environment and electronic devices. [0003] Nanogenerators are a research hotspot in recent years. Among them, the triboelectric generator utilizes the principles of triboelectricity and electrostatic induction, and two kinds of friction films coated with electrodes are bonded together to form a device. Under the action of external force, the device produces mechanica...

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Problems solved by technology

However, all these applications use the electrical signals output by the external circuit of the nanogenerator, and there is no good way to use the electrostatic potential formed between the friction surfaces.

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