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A kind of flexible film type pedot-zno ultraviolet light detector and preparation method thereof

A flexible film and ultraviolet light technology, which is applied in semiconductor/solid-state device manufacturing, photovoltaic power generation, electric solid-state devices, etc., can solve the problems of inconvenient installation and use, inability to bend or fold, and achieve low cost, simple process, and excellent photoconductivity. Effects of Response Properties

Inactive Publication Date: 2017-09-15
CHANGAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, at present, most of the ultraviolet light detectors made of semiconductor materials are rigid solids, which cannot be bent or folded, and are inconvenient to install and use in some special parts of equipment that require relative movement.

Method used

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  • A kind of flexible film type pedot-zno ultraviolet light detector and preparation method thereof
  • A kind of flexible film type pedot-zno ultraviolet light detector and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Step 1: Using the sol-gel method to prepare a doped ZnO material with zinc acetate, sodium nitrate and ammonium acetate as raw materials, the steps are as follows: configure 0.01mol / L zinc acetate, 0.001mol / L sodium nitrate and 0.01mol / L Ammonium acetate mixed solution, heated to 90 degrees Celsius, then added PVA to a concentration of 0.5g / L, stirred for 2 hours, then allowed to stand at room temperature and stirred for 1 hour to form a ZnO colloid. Put the colloid in a glass and put it in an oven to dry.

[0029] Step 2: put the dried ZnO into an atmosphere furnace, and perform heat treatment at 800°C in an atmosphere of oxygen and argon with a pressure ratio of 1:1. Then put ZnO into a ball mill, and use a ball mill with a vibration frequency of 1200 cycles / min to grind the heat-treated ZnO for 72 hours to obtain ZnO:(Na,N) powder with an average particle diameter of about 500 nm.

[0030] Step 3: Mix ZnO:(Na,N) powder with PEDOT:PSS (manufactured by Wuhan Sinuo Fuh...

Embodiment 2

[0034] The preparation method and test are the same as in Example 1, but the concentration of the prepared solution in step 1 is changed to a mixed solution of 0.01 mol / L zinc acetate, 0.01 mol / L sodium nitrate, and 0.01 mol / L ammonium acetate. Table 1 shows the values ​​of the responsivity of the ultraviolet light detector prepared in this real-time example. It can be seen from Table 1 that the response performance of the ultraviolet light detector in this embodiment is worse than that in Example 1.

Embodiment 3

[0036]The preparation method and test were the same as in Example 1, but the concentration of the solution prepared in step 1 was changed to a mixed solution of 0.01 mol / L zinc acetate, 0.001 mol / L sodium nitrate, and 0.1 mol / L ammonium acetate. Table 1 shows the values ​​of the responsivity of the ultraviolet light detector prepared in this real-time example. It can be seen from Table 1 that the response performance of the ultraviolet light detector in this embodiment is worse than that in Example 1.

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Abstract

The present invention relates to a kind of flexible film type PEDOT-ZnO ultraviolet photodetector and preparation method thereof, and this ultraviolet photodetector is photoconductive type ultraviolet photodetector, comprises flexible photosensitive film and the electrode on film; Specifically, described The flexible photosensitive film is a PEDOT-ZnO film spin-coated on a transparent flexible plastic film, and the ratio of PEDOT and ZnO is 7:1 in terms of mass ratio. The electrode is an Au / Ti interdigitated electrode; there is a potential barrier between pure PEDOT and ZnO materials, which has a serious impact on the photoconductive properties of the composite material system of the two. The doping of engineering design eliminates the original interface barrier between the two, so that the PEDOT-ZnO flexible thin-film ultraviolet photodetector has excellent photoconductive response characteristics.

Description

technical field [0001] The invention relates to the field of semiconductor materials and their preparation, in particular to a flexible film type PEDOT-ZnO ultraviolet light detector and a preparation method thereof. Background technique [0002] Ultraviolet light detectors have high application value in many applications. For military use, it can be used for aerospace detection, fighter tail flame tracking, missile tail flame tracking, etc.; for civilian use, it can be used for high-voltage corona detection, ultraviolet fingerprint detection, flame detection, etc. Semiconductor ultraviolet detectors are stable in performance and easy to use, and have been widely used in production and life. However, most of the ultraviolet light detectors made of semiconductor materials are rigid solids, which cannot be bent or folded, and are inconvenient to install and use in special parts of equipment that require relative movement. The development of a flexible film-type UV detector t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L51/42H01L51/46H01L51/48
CPCH10K71/12H10K85/1135H10K30/00Y02E10/549
Inventor 段理樊继斌程晓姣于晓晨田野何风妮
Owner CHANGAN UNIV
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