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Uncooled ultra-wide spectrum photoelectric converter and array detector

A photoelectric converter and photoelectric conversion technology, which is applied in the field of photodetectors, can solve the problems of fast response speed and inability to cover a wide wavelength range, and achieve strong conductivity, fast thermal electron transmission speed, and fast comprehensive response speed Effect

Pending Publication Date: 2020-07-10
苏州东薇极光信息科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The disclosure provides an uncooled ultra-wide spectrum photoelectric converter and an array detector, aiming to solve the problem that the material of the photoelectric conversion working fluid in the prior art cannot cover both a wide wavelength range and a fast response speed

Method used

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  • Uncooled ultra-wide spectrum photoelectric converter and array detector
  • Uncooled ultra-wide spectrum photoelectric converter and array detector
  • Uncooled ultra-wide spectrum photoelectric converter and array detector

Examples

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Embodiment 1

[0035] refer to Figure 1 to Figure 3 , the uncooled ultra-wide spectrum photoelectric converter disclosed in this embodiment includes an insulating substrate 2, a photoelectric conversion working medium 1, a photosensitive terminal electrode 4 and a cold terminal electrode 5; the photoelectric conversion working medium 1 is covered on the insulating substrate 2 superior;

[0036] The photoelectric conversion working fluid 1 comprises a photosensitive area 11 and a non-photosensitive area 12 connected to the photosensitive area 11; The photosensitive terminal electrode 4 is connected to the photosensitive terminal, and the cold terminal electrode 5 is connected to the cold terminal; the photoelectric conversion working medium 1 is a three-dimensional Dirac semimetal.

[0037] Wherein, the insulating base 2 is an insulating base 2 with electrical insulation and / or thermal insulation.

[0038] On the basis of any of the above schemes, the photosensitive area 11 and the non-pho...

Embodiment 2

[0060] refer to Figure 5 , this embodiment provides an uncooled ultra-broad spectrum array detector, which is formed by integrating or splicing several uncooled ultra-broad spectrum photoelectric converters described in any of the above schemes, and each photoelectric conversion working medium 1 The photosensitive areas are all located on the same plane.

[0061] Refer to Figure 6. When working, the radiated light enters the detector through the lens, and then the signal is amplified by the signal amplifier.

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Abstract

The invention provides an uncooled ultra-wide spectrum photoelectric converter and an array detector, and aims to solve the problem that a material of a photoelectric conversion working medium in theprior art cannot have a wide wavelength coverage range and sensitivity at the same time. The uncooled ultra-wide spectrum photoelectric converter comprises an insulating substrate, a photoelectric conversion working medium, a photosensitive end electrode and a cold end electrode, and the photoelectric conversion working medium is three-dimensional Dirac semimetal. The uncooled ultra-wide spectrumarray detector is formed by integrating a plurality of uncooled ultra-wide spectrum photoelectric converters. The photoelectric conversion working medium is made of three-dimensional Dirac semimetal,the photoelectric conversion detector has photoelectric and photo-thermoelectric composite effects at the same time, the photosensitive range comprises ultraviolet, visible, near-infrared, mid-infrared, far-infrared and terahertz wave bands, and an ultra-wide spectrum can be sensed; and the sensitivity is relatively high. The three-dimensional Dirac semimetal is used as a photoelectric conversionworking medium, and a photoelectric conversion working medium material can be directly used as a light absorption medium, so that the photoresponsivity and speed of the detector are improved.

Description

technical field [0001] The disclosure belongs to the field of photoelectric detectors, and in particular relates to an uncooled ultra-wide spectrum photoelectric converter and an array detector. Background technique [0002] The working principle of the photodetector is that radiation causes changes in the electrical and thermal properties of the irradiated material, and it is widely used in various fields of military and national economy. [0003] At present, due to the limitation of the electronic bandgap of materials, traditional semiconductor photodetection can only cover a limited wavelength region, especially in the mid-to-long infrared band, and there have been many technical bottlenecks such as low detection rate under uncooled (room temperature) conditions. On the other hand, although traditional metals or semimetals have no band gap, they have low photoelectric effect and large dark current, which obviously restrict the improvement of their responsivity. Therefore...

Claims

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Application Information

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IPC IPC(8): H01L31/032H01L31/0216H01L31/0224H01L31/102H01L23/36
CPCH01L23/36H01L31/02161H01L31/022408H01L31/032H01L31/102
Inventor 吴东
Owner 苏州东薇极光信息科技有限公司