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A kind of flexible organic photodetector and preparation method thereof

A photodetector, organic technology, applied in semiconductor/solid-state device manufacturing, photovoltaic power generation, semiconductor devices, etc., can solve the problem of difficulty in ensuring the reliability of wearable biosignal detection, is not conducive to further embodying the advantages of organic optoelectronic materials, and does not have the ability to detect wearable biosignals. problems such as stretchability and adhesion, to achieve the effect of large-scale preparation, reducing the difficulty of device preparation, and stabilizing optoelectronic properties

Active Publication Date: 2022-05-31
GUANGZHOU GUANGDA INNOVATION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, the research on bondable organic photodetectors is very limited, generally based on flexible electrodes and flexible substrates, which do not have stretchability and bonding, and their high Young's modulus is not conducive to further reflecting the mechanical flexibility of organic optoelectronic materials. advantages; the performance of flexible devices is relatively backward, so it is difficult to guarantee their reliability in wearable biosignal detection

Method used

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  • A kind of flexible organic photodetector and preparation method thereof
  • A kind of flexible organic photodetector and preparation method thereof
  • A kind of flexible organic photodetector and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0126] A flexible organic photodetector comprising an integrated bottom electrode layer (30 μm), a bottom electrode layer from bottom to top

[0129] The polymer layer is two layers, from the inside to the outside, the polymer layer (1) linear polyvinyl alcohol, the polymer layer (2)

[0130] The linear polyvinyl alcohol fully encapsulates the silver nanowires; the polydimethylsiloxane fully encapsulates the linear polyvinyl alcohol.

[0131] The Young's modulus of the polydimethylsiloxane is 1-3 MPa.

Embodiment 2

[0140] A flexible organic photodetector comprising an integrated bottom electrode layer (40 μm), a bottom electrode layer from bottom to top

[0143] The polymer layer is two layers, from the inside to the outside are the polymer layer (1) linear polyvinyl alcohol, the polymer layer (2)

[0145] The Young's modulus of the modified polydimethylsiloxane is 10-15 kPa.

Embodiment 3

[0154] A flexible organic photodetector comprising an integrated bottom electrode layer (35 μm), a bottom electrode layer from bottom to top

[0157] The polymer layer is two layers, the polymer layer (1) cross-linked polyvinyl alcohol and the polymer layer (2) are sequentially from the inside to the outside

[0159] The Young's modulus of the polydimethylsiloxane is 1-3 MPa.

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Abstract

The invention discloses a flexible organic photodetector, which sequentially includes an integrated bottom electrode layer, an active layer, and a top electrode from bottom to top; the integrated bottom electrode can be a single-layer or multi-layer structure, essentially A flexible structure formed by encasing the electrode material with a polymer layer. The polymer layer can form a close fit with the skin, and the Young's modulus of the outermost polymer layer is 0.01-12MPa. The flexible organic photodetector structure has good conformability and can form a close interface contact with human skin; it can maintain stable photoelectric performance under mechanical deformation; and compared with rigid devices, the conformability Organic photodetectors have the advantages of more accurate acquisition of biological signals.

Description

A flexible organic photodetector and preparation method thereof technical field [0001] The invention belongs to the field of new materials, in particular to a flexible organic light detector and a preparation method thereof. Background technique The real-time monitoring of biological signals is of great significance to the fields of biomedicine, health monitoring, rehabilitation and health care. Technical means still generally rely on cumbersome and complex medical equipment, and have a strong dependence on medical technical means. poor. Different from traditional rigid electronic systems, conformable optoelectronic devices based on flexible material systems can be conformally attached. For irregular surfaces such as human skin, it can maintain stable optoelectronic properties under mechanical deformation, and can be achieved by non-invasive methods. Real-time monitoring of physiological signals such as blood oxygen, heart rate, pulse, etc., greatly improves people...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L51/42H01L51/44H01L51/46H01L51/48
CPCH10K71/00H10K85/00H10K30/80H10K30/00Y02E10/549
Inventor 黄飞崔楠杨喜业解博名宋煜
Owner GUANGZHOU GUANGDA INNOVATION TECH CO LTD
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