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Organic photoelectric detector based on optical microcavity effect and preparation method thereof

A photodetector and optical microcavity technology, which is applied in photovoltaic power generation, electrical solid-state devices, semiconductor/solid-state device manufacturing, etc., can solve the problems of low detection rate, difficult separation of long-wavelength excitons, and low external quantum efficiency, achieving The effect of unique structure and good detection ability

Active Publication Date: 2020-11-03
UNIV OF ELECTRONIC SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Traditional organic photodetectors have low external quantum efficiency in the near-infrared band due to the difficulty in separating long-wavelength excitons, which in turn leads to low detectivity.

Method used

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  • Organic photoelectric detector based on optical microcavity effect and preparation method thereof
  • Organic photoelectric detector based on optical microcavity effect and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0035] Clean the glass substrate 1: put the glass substrate 1 into detergent, acetone, deionized water, and isopropanol in sequence, ultrasonically clean it for 15 minutes each time, and then dry it with an inert gas. Then the glass substrate 1 is transferred to the vacuum evaporation equipment, and the vacuum degree is less than 3.0×10 -3 A layer of Au electrode was vapor-deposited in Pa environment. Then put the transparent conductive electrode layer 2 into an ozone machine for UV treatment for 10 minutes. The mixture of PEIE and benzothiazocyanine dye was spin-coated on the transparent conductive electrode layer 2 after ozone treatment, the rotation speed was controlled at 4000rpm, the time was 20s, and then annealing was performed, the annealing temperature was controlled at 150°C, and the time was 15min. . Preheat the glass substrate 1 and the organic donor-receptor solution on which the double-narrow-band modulation layer 3 has been spin-coated at 100° C., spin-coat th...

Embodiment 2

[0038] Clean the glass substrate 1: put the glass substrate 1 into detergent, acetone, deionized water, and isopropanol in sequence, ultrasonically clean it for 15 minutes each time, and then dry it with an inert gas. Then the glass substrate 1 is transferred to the vacuum evaporation equipment, and the vacuum degree is less than 3.0×10 -3 A layer of Au electrode was vapor-deposited in Pa environment. Then put the transparent conductive electrode layer 2 into an ozone machine for UV treatment for 10 minutes. The mixture of PEIE and benzothiazocyanine dye was spin-coated on the transparent conductive electrode layer 2 after ozone treatment, the rotation speed was controlled at 4000rpm, the time was 20s, and then annealing was performed, the annealing temperature was controlled at 150°C, and the time was 15min. . Preheat the glass substrate 1 and the organic donor-receptor solution on which the double-narrow-band modulation layer 3 has been spin-coated at 100° C., spin-coat th...

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Abstract

The invention discloses an organic photoelectric detector based on an optical microcavity effect and a preparation method thereof, and belongs to the field of photoelectric detectors. The photoelectric detector is sequentially provided with a glass substrate, a semitransparent conductive electrode layer, a double-narrow-band modulation layer, an organic functional layer, a hole transport layer anda metal electrode layer from bottom to top. An optical micro-cavity structure, which is formed by the semitransparent conductive electrode layer, the double-narrow-band modulation layer, the organicfunctional layer, the hole transport layer and the metal electrode layer, can achieve double-narrow-band response to different wave bands, and therefore the double-wave-band narrow-band detection capacity is achieved. According to the invention, the problems of large half-wave-peak width, poor detection performance in a near-infrared band and only single-band detection capability of an organic photoelectric detector are effectively solved.

Description

technical field [0001] The invention relates to the technical field of photodetection devices, in particular to an organic photodetector based on an optical microcavity effect and a preparation method thereof. Background technique [0002] Compared with inorganic photovoltaic devices, organic photovoltaic devices have the characteristics of simple manufacturing process, low cost, and can be fabricated on different substrates in large areas, coupled with the rapid development of organic photovoltaic devices, they have been widely used in organic solar cells and organic light detection. devices and other fields. Organic photodetectors are easy to integrate and have a wide range of applications in many consumer electronics products, health care, resource detection, and environmental protection. In order to meet the requirements of practical applications, organic photodetectors should have high detectivity and narrow spectral response range to achieve more accurate detection. ...

Claims

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Application Information

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IPC IPC(8): H01L51/46H01L51/44H01L51/48H01L51/42
CPCH10K71/12H10K71/40H10K85/611H10K85/657H10K30/80H10K30/30Y02E10/549
Inventor 钟建刘洁尘李娜刘泽宇贾晓伟
Owner UNIV OF ELECTRONIC SCI & TECH OF CHINA
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