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A two-color organic photodetector

A photodetector, an organic technology, applied in the field of photodetectors, can solve the problem of large overall structure size and achieve the effect of overcoming low mobility

Active Publication Date: 2019-10-29
ZHEJIANG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If you want to detect two different wavelengths or different bands of optical signals, you must use two organic photodetectors and a spectroscopic device for detection at the same time, and the overall structure size will be larger

Method used

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  • A two-color organic photodetector
  • A two-color organic photodetector
  • A two-color organic photodetector

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Embodiment Construction

[0017] The present invention will be further described below in conjunction with the drawings.

[0018] figure 1 It is a schematic diagram of the structure of a two-color organic photodetector of the present invention. Such as figure 1 The two-color organic photodetector shown includes two independent sets of organic working layers sensitive to different light wavelengths or different light bands, connecting the two independent organic working layers and forming an electric double layer at the interface to generate displacement current Ionic liquid and aluminum (Al), gold (Au) and indium tin oxide (ITO) as electrodes.

[0019] The two-color organic photodetector is characterized in that: independent first organic working layer and second organic working layer sensitive to different light wavelengths or different light bands, connecting the first organic working layer and the second organic working layer and An ionic liquid that forms an electric double layer at the interface to ge...

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Abstract

A two-color organic photodetector, an independent first organic working layer and a second organic working layer sensitive to different light wavelengths or different light bands, connecting the first organic working layer and the second organic working layer and forming a double at the interface The electric layer thus generates the ionic liquid of the displacement current and aluminum (Al), gold (Au) and indium tin oxide (ITO) as electrodes to form the first detection unit and the second detection unit; the first detection unit includes The first aluminum electrode Al as the negative electrode on the chip, the Au of the first positive electrode, the first organic working layer and the ionic liquid as the main working substance; the second detection unit includes ITO attached on the glass substrate as the second positive electrode, Al as the second negative electrode, the second organic working layer as the main working substance, and the ionic liquid; the ionic liquid is shared by the first detection unit and the second detection unit.

Description

Technical field [0001] The invention relates to the field of photodetectors, in particular to a two-color photodetector integrated with two sets of independent organic working layer detection units that can simultaneously and independently detect two optical signals of different wavelengths or different bands. Background technique [0002] An organic photodetector is a photocell that uses organic matter as the working material for photoelectric conversion. [0003] At present, traditional organic photodetectors can only detect light signals that are sensitive to their organic working layers, and organic working layers are often only sensitive to light signals in a certain band. If you want to realize the detection of two optical signals of different wavelengths or different bands, you must use two organic photodetectors together with spectroscopic devices for detection, and the overall structure size will be larger. Summary of the invention [0004] In order to overcome the shortco...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L51/42H01L51/44
CPCH10K30/00H10K30/80H10K30/81Y02E10/549
Inventor 李博徐晓婷郑雪晴
Owner ZHEJIANG UNIV OF TECH