Inorganic perovskite thick film composite material semiconductor device and preparation method thereof

A composite material and inorganic calcium technology, which is applied in the manufacture of semiconductor devices, electrical components, and final products, can solve the problem that thin films cannot meet the physical requirements of high-energy particle detection, single crystals cannot be grown on a large scale, large-size, and do not have repeatability, etc. problems, achieve excellent photoelectric response, high repeatability, and improve performance

Active Publication Date: 2019-06-14
SHANGHAI UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

CsPbBr is currently grown by temperature inversion 3 Single crystals are still unable to grow on a large scale and in large sizes, and are not repeatable
CbBr 3 Thin films of materials cannot meet the physical needs of high-energy particle detection

Method used

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  • Inorganic perovskite thick film composite material semiconductor device and preparation method thereof
  • Inorganic perovskite thick film composite material semiconductor device and preparation method thereof
  • Inorganic perovskite thick film composite material semiconductor device and preparation method thereof

Examples

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Effect test

Embodiment 1

[0035] In this example, see figure 1 , an inorganic perovskite thick-film composite semiconductor device, the transparent glass is used as a substrate with a plane size of 2cm*2cm, and the inorganic perovskite thick-film composite semiconductor device consists of transparent glass, a perovskite light-absorbing layer, a metal The electrode is composed of transparent glass / CsPbBr 3 Composite structure composed of perovskite polycrystalline thick film / Au electrode as an all-inorganic perovskite planar semiconductor detector material, CsPbBr 3 Perovskite polycrystalline thick film as electron hole transport functional layer, CsPbBr 3 The thickness of the perovskite polycrystalline thick film is 10 μm, and the thickness of the Au electrode is 70 nm. The perovskite light-absorbing layer is prepared by a single-step thermal spraying method. The metal electrodes are composed of Au point electrodes. The inorganic perovskite thick-film composite device is used as an X-ray thick-film...

Embodiment 2

[0048] This embodiment is basically the same as Embodiment 1, especially in that:

[0049] In this embodiment, an inorganic perovskite thick-film composite semiconductor device, the transparent glass is used as a substrate with a planar size of 2cm*2cm, and the inorganic perovskite thick-film composite semiconductor device is made of transparent glass, perovskite Composed of mineral light-absorbing layer and metal electrodes, its structure is made of transparent glass / CsPbBr 3 Composite structure composed of perovskite polycrystalline thick film / Au electrode as an all-inorganic perovskite planar semiconductor detector material, CsPbBr 3 Perovskite polycrystalline thick film as electron hole transport functional layer, CsPbBr 3 The thickness of the perovskite polycrystalline thick film is 100 μm, and the thickness of the Au electrode is 80 nm. The perovskite light-absorbing layer is prepared by a single-step thermal spraying method. The metal electrodes are composed of Au po...

Embodiment 3

[0062] This embodiment is basically the same as the previous embodiment, and the special features are:

[0063] In this embodiment, an inorganic perovskite thick-film composite semiconductor device, the transparent glass is used as a substrate with a planar size of 2cm*2cm, and the inorganic perovskite thick-film composite semiconductor device is made of transparent glass, perovskite Composed of mineral light-absorbing layer and metal electrodes, its structure is made of transparent glass / CsPbBr 3Composite structure composed of perovskite polycrystalline thick film / Au electrode as an all-inorganic perovskite planar semiconductor detector material, CsPbBr 3 Perovskite polycrystalline thick film as electron hole transport functional layer, CsPbBr 3 The thickness of the perovskite polycrystalline thick film is 200 μm, and the thickness of the Au electrode is 90 nm. The perovskite light-absorbing layer is prepared by a single-step thermal spraying method. The metal electrodes a...

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Abstract

The invention discloses an inorganic perovskite thick film composite material semiconductor device and a preparation method thereof; by adoption of the preparation method, continuous growth can be carried out, and an X-ray detector of a perovskite polycrystalline thick film with large size and high crystallinity is prepared, wherein the structure of the detector is transparent glass/CsPbBr3 perovskite polycrystalline thick film/Au electrode full-inorganic perovskite planar semiconductor detector. The prepared detector is relatively thick in thickness, relatively high in switching ratio, relatively high in response speed and excellent in water oxygen stability. The preparation method of the semiconductor detector is simple in steps, low in cost, controllable in low temperature in the process, and the prepared CsPbBr3 material is excellent in moisture resistance and heat resistance; and the method is applied to large-scale commercial production and has remarkable industrial popularization value.

Description

technical field [0001] The invention relates to a semiconductor detector device and a preparation process thereof, in particular to a perovskite thick-film compound semiconductor detector device and a preparation method thereof, which are applied in the technical field of semiconductor detector material manufacturing technology. Background technique [0002] Semiconductor detectors play a very important role in military or civilian fields such as biomedical sensing and high-energy particle detection. In recent years, halide perovskite materials have become a hot research material in the scientific research community due to their excellent photoelectric properties, suitable and easily adjustable bandgap, high carrier mobility, long carrier lifetime and low defect Such excellent characteristics make the perovskite semiconductor detector a new type of semiconductor detector with low cost and low temperature. The commonly used perovskite materials are mainly organic-inorganic h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L31/08H01L31/0224H01L31/032H01L31/0368H01L31/18
CPCY02P70/50
Inventor 徐闰倪超伟欧正海张笑铮易永胜徐珊瑚徐飞黄健王林军
Owner SHANGHAI UNIV
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