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Organic thin film transistor type sensing pixel circuit and microarray chip

An organic thin film and pixel circuit technology, applied in the field of sensing, can solve the problem of low detection sensitivity of organic thin film transistors, and achieve the effects of manufacturing high-sensitivity sensor chips, improving sensitivity and improving working speed.

Active Publication Date: 2019-08-16
SHANGHAI JIAO TONG UNIV
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0004] The invention provides an organic thin film transistor type sensing pixel circuit and a microarray chip, which are used to solve the problem of low detection sensitivity of the existing organic thin film transistor

Method used

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  • Organic thin film transistor type sensing pixel circuit and microarray chip
  • Organic thin film transistor type sensing pixel circuit and microarray chip

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Embodiment Construction

[0030] The specific implementation of the organic thin film transistor sensor pixel circuit and the microarray chip provided by the present invention will be described in detail below with reference to the accompanying drawings.

[0031] This specific embodiment provides an organic thin film transistor type sensing pixel circuit, with figure 1 It is a structural schematic diagram of an organic thin film transistor type sensing pixel circuit in a specific embodiment of the present invention. Such as figure 1 As shown, the organic thin film transistor type sensing pixel circuit provided in this specific embodiment includes a pixel unit 10, and the pixel unit 10 includes:

[0032] substrate 100;

[0033] a first bottom gate electrode 101 and a second bottom gate electrode 102 disposed on the surface of the substrate 100 in the same layer;

[0034] a bottom gate insulating layer 103 covering the first bottom gate electrode 101 and the second bottom gate electrode 102;

[0035]...

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Abstract

The invention relates to the technical field of sensing, in particular to an organic thin film transistor type sensing pixel circuit and a microarray chip. The organic thin film transistor type sensing pixel circuit comprises a pixel unit. The pixel unit comprises a substrate, a first bottom gate electrode and a second bottom gate electrode arranged in the same layer, a bottom gate insulating layer covering the first bottom gate electrode and the second bottom gate electrode, a first source, a common electrode and a second source arranged in the same layer, a first organic semiconductor layer,a second organic semiconductor layer, a top gate insulating layer covering the first organic semiconductor layer and the second organic semiconductor layer, and a first top gate electrode and a second top gate electrode arranged in the same layer, wherein the common electrode is located between the first source and the second source, and the capacitance value of the top gate insulating layer is larger than that of the bottom gate insulating layer. The threshold voltage of the organic thin film transistor can be easily adjusted, and the sensitivity of the sensor in the sensing microarray can be improved.

Description

technical field [0001] The invention relates to the field of sensing technology, in particular to an organic thin film transistor type sensing pixel circuit and a microarray chip. Background technique [0002] Integrate reaction and detection functions, and develop miniaturized, low-cost, easy-to-operate and high-accuracy electrochemical sensor chips for rapid and high-throughput detection of biomolecules and chemical components, which will accelerate the development of molecular biology technology research And it is of great significance to promote the application of intelligent in vitro diagnosis. In the electrochemical sensor chip technology, the transistor-type sensor chip not only has the advantages of array manufacturing to achieve high-throughput detection, but also can realize individual addressing control of sensing sites for subsequent signal processing, and its structure is more compact. , Strong compatibility with peripheral control and reading circuits. In res...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L27/28H01L27/30
CPCH10K19/10H10K39/32
Inventor 唐伟郭小军樊嘉丽黄钰坤
Owner SHANGHAI JIAO TONG UNIV
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