薄膜晶体管及采用薄膜晶体管的滤波器

By introducing an interface charge layer into the thin-film transistor, the self-gating effect is achieved by utilizing the interface charge layer between the carbon nanotube structure and the gate insulating layer, thus solving the problem of weak rectification characteristics of two-dimensional semiconductor transistors and realizing reconfigurable rectification characteristics.

CN115810668BActive Publication Date: 2026-07-17TSINGHUA UNIVERSITY +1

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
TSINGHUA UNIVERSITY
Filing Date
2021-09-02
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Transistors made of existing two-dimensional semiconductor materials have weak rectification characteristics, and contact asymmetry introduced during manufacturing can easily affect the rectification effect.

Method used

By introducing an interface charge layer into thin-film transistors, the interface charge layer between the carbon nanotube structure and the gate insulating layer acts as an additional gate in the Schottky barrier region near the drain, thereby realizing the self-gating effect of the carbon nanotube channel and achieving reconfigurable rectification behavior.

Benefits of technology

The reconfigurable rectification characteristics of the thin-film transistor are realized when switching between p-type and n-type gate voltages. Holes and electrons are injected through a narrow Schottky barrier region at the drain, and the rectification characteristics switch between forward and reverse.

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Abstract

本发明涉及一种薄膜晶体管,其包括:一栅极;一栅极绝缘层,所述栅极绝缘层设置于所述栅极的表面;一碳纳米管结构,所述碳纳米管结构设置于所述栅极绝缘层远离所述栅极的表面;及一源极、一漏极,所述源极、漏极间隔设置,并分别与所述碳纳米管结构电连接;其中,进一步包括一界面电荷层,所述界面电荷层设置于所述碳纳米管结构和所述栅极绝缘层之间。本发明还涉及一种采用该薄膜晶体管制备的滤波器。
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