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Power grid corona monitor and preparation method thereof

A monitor and grid electricity technology, applied in circuits, electrical components, photovoltaic power generation, etc., can solve the problems of short detection distance, many human factors, and large detection errors of ultrasonic corona detection devices, and achieve enhanced conductivity and transparency. Light rate, easy to obtain processing, responsive effect

Active Publication Date: 2022-07-12
ZHEJIANG SCI-TECH UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The monitoring of arc discharge usually includes manual visual inspection, far-infrared telescope, ultrasonic corona detection and solar-blind ultraviolet detection technology. The detection distance of the halo detection device is relatively short, there are many human influence factors in use, and the detection error is relatively large

Method used

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  • Power grid corona monitor and preparation method thereof
  • Power grid corona monitor and preparation method thereof
  • Power grid corona monitor and preparation method thereof

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preparation example Construction

[0044] A preparation method of a power grid corona monitor, comprising the following steps:

[0045] Step 1. Soak the FTO substrate 1 in acetone, ethanol, and deionized water for 10 minutes in sequence, then take it out, rinse it with deionized water, and dry it with dry nitrogen;

[0046] Step 2, take Ga(NO) with a concentration of 10-15g / L 3 ) 3 The solution is placed in the inner liner of the reactor, and then the FTO substrate 1 after drying with dry nitrogen in step 1 is leaned against the inner liner of the reactor, and is immersed in Ga(NO) 3 ) 3 In the solution, wherein the fluorine-doped tin oxide layer 2 is toward the side of the reactor liner on which it is leaned;

[0047] Step 3: Transfer the reaction kettle in Step 2 to an oven, react at 150° C. for 12 hours, then take out the FTO substrate 1, wash it alternately with deionized water and absolute ethanol, and dry it in a high-temperature furnace. Anneal at 400-500℃ for 3.0-4.0 hours to obtain α-Ga 2 O 3 nan...

Embodiment 1

[0053] (1) Soak the FTO substrate 1 in acetone, ethanol, and deionized water for 10 minutes in sequence, rinse with deionized water after taking it out, and dry it with dry nitrogen; (2) Take 30 mL of 5 g / L Ga(NO 3 ) 3 The solution is placed in the inner liner of the reactor, and then the FTO substrate 1 obtained in step (1) is leaned against the inner liner of the reactor, and immersed in Ga(NO) 3 ) 3 In the solution, the fluorine-doped tin oxide layer 2 faces downward (that is, towards the side of the inner tank of the reactor that is leaned against); (3) transfer the reactor to an oven, react at 150 ° C for 12 hours, then take it out and use Deionized water and absolute ethanol were alternately washed 3 times, and after drying, annealed in a high temperature furnace at 400 °C for 1.0 hours to obtain α-Ga 2 O 3 nanopillar arrays, then the high temperature furnace was rapidly heated to 750°C and annealed for 10 minutes to obtain α / β-Ga 2 O 3 Junction nanopillar array 4;...

Embodiment 2

[0060] Steps (1), (4) and (5) are all identical with embodiment 1;

[0061] Ga(NO in step (2) 3 ) 3 The concentration of the solution is 10g / L;

[0062] Step (3): react at 150°C for 12h, hydrothermally grow gallium oxyhydroxide, then transfer GaOOH to a high temperature furnace for annealing, and anneal at 400°C for 1.5 hours to obtain α-Ga 2 O 3 nanopillar arrays, then the high-temperature furnace was rapidly heated to 700 °C and annealed for 20 minutes to obtain α / β-Ga 2 O 3 Junction Nanopillar Array 4; Resulting α / β-Ga 2 O 3 Crystal structure, chemical composition of junction nanopillar array 4 and Ti-based 3 C 2 / α / β-Ga 2 O 3 The optoelectronic properties of the grid corona monitors of the nanopillar array van der Waals heterojunction are all similar to those of Example 1.

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Abstract

The invention discloses a power grid corona monitor and a preparation method thereof, the power grid corona monitor comprises an FTO substrate, at least one side of the FTO substrate is provided with a fluorine-doped tin oxide layer, a GaOOH nano-pillar array grows on the fluorine-doped tin oxide layer, the GaOOH nano-pillar array forms an alpha / beta-Ga2O3 phase junction nano-pillar array after annealing, and the alpha / beta-Ga2O3 phase junction nano-pillar array forms an alpha / beta-Ga2O3 phase junction nano-pillar array. A Ti3C2 / Ag nanowire composite layer is arranged on the alpha / beta-Ga2O3 phase junction nano-pillar array, an Ag electrode is arranged on the Ti3C2 / Ag nanowire composite layer, a Ti3C2 / alpha / beta-Ga2O3 nano-pillar array Van der Waals heterojunction is formed between a Ti3C2 layer on the Ti3C2 / Ag nanowire composite layer and the alpha / beta-Ga2O3 phase junction nano-pillar array, a three-dimensional space heterojunction interface structure and the solar blind characteristic are achieved, and the solar blind property is improved. The self-powered power grid corona monitor has the advantages of excellent chemical and thermal stability, high voltage resistance, low working temperature and power consumption and good repeatability, is a self-powered power grid corona monitor with ultrahigh responsivity, and can directionally identify ultraviolet light with the wavelength of 200-280nm in a solar blind wave band.

Description

technical field [0001] The invention relates to the technical field of ultraviolet photodetectors, in particular to a power grid corona monitor and a preparation method thereof. Background technique [0002] Arc is a gas discharge phenomenon, the instantaneous spark generated by the current passing through some insulating medium (such as air). These phenomena will damage high-voltage equipment for a long time, cause the paralysis of the power system, and cause serious harm to the power system. In addition, arcing can seriously affect personal safety. Therefore, how to accurately, timely and effectively detect the location and strength of arc discharge is of great significance to ensure the reliable operation of the power system, reduce equipment damage and ensure personal safety. [0003] The monitoring of arc discharge usually includes manual visual inspection, far-infrared telescope, ultrasonic corona detection and solar-blind ultraviolet detection technology. The detect...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L31/032H01L31/0336H01L31/109H01L31/0224H01L31/18B82Y15/00B82Y30/00B82Y40/00
CPCH01L31/032H01L31/0336H01L31/109H01L31/18H01L31/022408H01L31/022466H01L31/1884B82Y15/00B82Y30/00B82Y40/00Y02E10/50
Inventor 郭道友赵天丽邓李朋钱松程邢志文王顺利
Owner ZHEJIANG SCI-TECH UNIV
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