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Flexible organic photoelectric detector and preparation method thereof

A photodetector, organic technology, applied in photovoltaic power generation, electric solid state devices, semiconductor/solid state device manufacturing, etc., can solve the problems of not being able to have air stability at the same time, polymers have no industrial application prospects, etc., and achieve excellent electron migration. rate, improve photoelectric detection performance, and achieve the effect of rapid separation

Inactive Publication Date: 2018-01-19
CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But so far, this series of polymers still has no industrial application prospects, because their devices often cannot have large-area preparation processes, good air stability, and good flexibility at the same time.

Method used

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  • Flexible organic photoelectric detector and preparation method thereof
  • Flexible organic photoelectric detector and preparation method thereof
  • Flexible organic photoelectric detector and preparation method thereof

Examples

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Embodiment 1

[0031] One embodiment of the flexible organic photodetector of the present invention. The structure of the flexible organic photodetector is as follows figure 1 shown by figure 1 Visible, it mainly comprises substrate (1), organic active layer (2) and electrode (3), and described organic active layer (2) is positioned at the upper surface of described substrate (1), and described electrode (3) is positioned at organic active layer (3). The upper surface of layer (2). Among them, the organic active layer is tetrafluorobenzoquinoxaline-based polymer (21) and fullerene derivative PC 61 Blend film of BM; substrate (1) is polyethylene terephthalate (PET).

[0032] The preparation method of the flexible organic photodetector mainly includes the following steps:

[0033] (1) Tetrafluorobenzoquinoxaline-based polymer and PC 61 BM was dissolved in chlorobenzene at a mass ratio of 1:1.5, and 3% diiodooctane of the solution volume was added to finally form a blended solution with a co...

Embodiment 2

[0038] One embodiment of the flexible organic photodetector of the present invention. The structure of the flexible organic photodetector is as follows figure 1 shown by figure 1 Visible, it mainly comprises substrate (1), organic active layer (2) and electrode (3), and described organic active layer (2) is positioned at the upper surface of described substrate (1), and described electrode (3) is positioned at organic active layer (3). The upper surface of layer (2). Wherein, the organic active layer is a blend film of tetrafluorobenzoquinoxaline-based polymer (21) and fullerene derivatives; the substrate (1) is paper.

[0039] The preparation method of the flexible organic photodetector mainly includes the following steps:

[0040] (1) Dissolve tetrafluorobenzoquinoxaline-based polymers: ICBA in chlorobenzene at a mass ratio of 1:1.4, and add 5% diiodooctane by volume of the solution to form a final concentration of 20 mg / mL Blend the solution.

[0041] (2) Roll-to-roll ...

Embodiment 3

[0045] One embodiment of the flexible organic photodetector of the present invention. The structure of the flexible organic photodetector is as follows figure 1 shown by figure 1 Visible, it mainly comprises substrate (1), organic active layer (2) and electrode (3), and described organic active layer (2) is positioned at the upper surface of described substrate (1), and described electrode (3) is positioned at organic active layer (3). The upper surface of layer (2). Among them, the organic active layer is a blend film of tetrafluorobenzoquinoxaline-based polymer (21) and fullerene derivatives; the substrate (1) is polyethylene naphthalate (PEN).

[0046] The preparation method of the flexible organic photodetector mainly includes the following steps:

[0047] (1) tetrafluorobenzoquinoxaline-based polymer: PC 71 BM was dissolved in o-dichlorobenzene at a mass ratio of 1:1.6, and 4% diiodooctane of the solution volume was added to finally form a blended solution with a conc...

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Abstract

The invention discloses a flexible organic photoelectric detector and a preparation method thereof. The photoelectric detector comprises a flexible substrate (1), an organic active layer (2) and an electrode (3). The organic active layer (2) is located on the upper surface of the flexible substrate (1). The electrode (3) is located on the organic active layer (2). The organic active layer (2) is abulk-heterojunction film formed by tetrafluoride and quinoxaline polymers PffQx-BDTT (21) and fullerene derivatives and is prepared through the roll-to-roll printing process. The electrode (3) can beprepared through evaporation or ink-jet printing or silk-screen printing. The photoelectric detector is excellent in photoelectric detection performance, stable in performance in air and good in flexibility. The preparation method of the photoelectric detector is simple in process and low in cost. The method is suitable for large-area preparation and can be widely applied.

Description

technical field [0001] The invention relates to the technical field of optoelectronic devices, in particular to a flexible organic photodetector and a preparation method thereof. Background technique [0002] Organic photodetectors, including small molecules and polymer materials, have been extensively studied and applied in image sensing, chemical and biological sensing, optical communication, and environmental monitoring. Traditional photodetectors are mainly inorganic materials, such as silicon, gallium arsenide, etc. However, organic materials are incomparable to inorganic materials due to their low cost, solution processability, flexibility, and structural diversity. With the rapid development of the chemical industry, a variety of new organic semiconductor materials have been designed, exhibiting good photoelectric properties, and are widely used in near-infrared light-emitting diodes, field-effect transistors, two-photon absorption, solar cells and other fields. [...

Claims

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Application Information

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IPC IPC(8): H01L51/42H01L51/00H01L51/46H01L51/48
CPCY02E10/549Y02P70/50
Inventor 阳军亮童思超袁俊邹应萍
Owner CENT SOUTH UNIV
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