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Wide temperate zone terahertz wave detector and preparation method thereof

A terahertz and detector technology, applied in the field of detectors, can solve problems such as low radiation power, poor sensitivity, and slow response speed of terahertz light sources

Active Publication Date: 2017-11-07
SUZHOU UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Since the radiation power of current terahertz light sources is generally relatively low, the existing wide-temperate terahertz wave detectors generally have slow response speed (pyroelectric detectors), narrow detection frequency (Schottky diodes), and poor sensitivity ( Golay cell detector) and the need for low temperature work (bolometer), so it is particularly important to develop a high-speed, high-sensitivity, high-signal-to-noise wide-band terahertz wave detector that can work at room temperature

Method used

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Embodiment 1

[0055] A method for preparing a wide-temperate terahertz wave detector, comprising the following steps:

[0056] (1) Under the protection of nitrogen, mix ammonium hexachloroiridate, nickel nitrate hydrate, ammonium ferrous sulfate hydrate, ethanol and propionic acid; then reflux and stir for 5 minutes, then add ammonia water; after 10 minutes of reaction, cool naturally to room temperature, add Ethyl acetate coagulation and centrifugation; the centrifuged precipitate was washed with water and dispersed in ethanol to obtain a dispersion system; then manganese acetate, cobalt nitrate, and water were added, stirred for 10 minutes, added samarium samarium, stirred for 1 hour, and the support layer precursor was obtained;

[0057](2) Add polyvinyl alcohol, hydrogen peroxide, and iron tetraphenylporphyrin to the dispersion system, stir at 50°C for 1 hour, then add 4,4-diaminophenylmethane, octamethylcyclotetrasiloxane, and stir under reflux 10 minutes, then concentrated to obtain a...

Embodiment 2

[0066] A method for preparing a wide-temperate terahertz wave detector, comprising the following steps:

[0067] (1) Under the protection of nitrogen, mix ammonium hexachloroiridate, nickel nitrate hydrate, ammonium ferrous sulfate hydrate, ethanol and propionic acid; then reflux and stir for 5 minutes, then add ammonia water; after 10 minutes of reaction, cool naturally to room temperature, add Ethyl acetate coagulation and centrifugation; the centrifuged precipitate was washed with water and dispersed in ethanol to obtain a dispersion system; then manganese acetate, cobalt nitrate, and water were added, stirred for 10 minutes, added samarium samarium, stirred for 1 hour, and the support layer precursor was obtained;

[0068] (2) Add polyvinyl alcohol, hydrogen peroxide, and iron tetraphenylporphyrin to the dispersion system, stir at 50°C for 1 hour, then add 4,4-diaminophenylmethane, octamethylcyclotetrasiloxane, and stir under reflux 10 minutes, then concentrated to obtain ...

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Abstract

The present invention belongs to the detector technology field, in particular relates to a wide temperate zone terahertz wave detector and a preparation method thereof. According to the present invention, by taking an aluminum gallium nitrogen / gallium nitrogen high electron mobility field effect transistor (HEMT) as a basic structure, by the substrate and by utilizing an epitaxy method, an aluminum gallium nitrogen / gallium nitrogen layer is prepared; then an active area table-board, a gate medium, an ohmic contact window and an electrode are prepared, so that an obtained two-dimensional electron gas in the field effect transistor has the higher electron concentration and mobility, a spectral detector of realizing the high speed, high sensitivity and high signal to noise ratio detection of a THz wave on an over room temperature condition is obtained, and finally, the wide temperate zone detection of the THz wave is realized.

Description

technical field [0001] The invention belongs to the technical field of detectors, and in particular relates to a wide temperate-band terahertz wave detector and a preparation method thereof. Background technique [0002] Terahertz science and technology is another "preface revolution" in this century, and it has become one of the hot topics in scientific research. Terahertz science and technology are in the ascendant, and have shown their unique advantages in some important research fields. In the 21st century, the application research of terahertz will be the research focus of relevant researchers. Terahertz science and technology cannot be compared with infrared technology and microwave technology in some fields, but it can be used as a supplement and extension of other technologies in other aspects. Although the development of terahertz technology in terms of radiation sources, detectors and other related component technologies is not ideal enough to be practical and in...

Claims

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Application Information

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IPC IPC(8): H01L31/18H01L31/113
CPCH01L31/1136H01L31/1848H01L31/1852Y02P70/50
Inventor 孙云飞罗恒刘传洋陶重犇
Owner SUZHOU UNIV OF SCI & TECH
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