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Selenium nanowire photoelectric detector and preparation method

A photodetector, selenium nanotechnology, used in nanotechnology, nanotechnology, nanotechnology for sensing, etc.

Active Publication Date: 2020-07-07
EAST CHINA NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to provide a preparation method of selenium nanowire photodetector, which solves the preparation and application problems of selenium nanowire

Method used

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  • Selenium nanowire photoelectric detector and preparation method
  • Selenium nanowire photoelectric detector and preparation method
  • Selenium nanowire photoelectric detector and preparation method

Examples

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Embodiment 1

[0032] A method for preparing a selenium nanowire photoelectric detector, the specific steps are as follows:

[0033] Step 1) Dissolving selenourea in distilled water to form a solution for oxidation to obtain amorphous selenium. In this embodiment, the acquisition process of amorphous selenium simple substance includes:

[0034] Step 1-1) Dissolve 12.3 mg of high-purity selenourea in 2 mL of disposable distilled water;

[0035] Step 1-2) At room temperature, stir the selenourea solution with a magnetic stirrer to cause the selenourea solution to undergo an oxidation reaction. The stirring time is 30 minutes, and the rotation speed is 850 rpm;

[0036] Step 2) After washing the amorphous selenium elemental substance obtained in step 1) with absolute ethanol, let it stand in the dark to obtain selenium nanowires; the process includes:

[0037] Step 2-1) Disperse the amorphous selenium element obtained in step 1) in absolute ethanol, perform ultrasonic washing, and then centri...

Embodiment 2

[0059] Step 1) Preparation of the selenium nanowire photodetector of the present invention: same as Example 1.

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Abstract

The invention discloses a selenium nanowire photoelectric detector and a preparation method thereof. The photoelectric detector can be used for detecting visible light and ultraviolet light. The preparation method comprises the following steps: synthesizing, selecting and transferring selenium nanowires, depositing and the like, preparing the selenium nanowires which can be applied to sensors, photoelectric elements, quantum wires, micro lasers, electronic probes and micro mechanical arms, and preparing a photoelectric detector which has sensitive response to visible light and ultraviolet light. The preparation method of the device is simple and easy to implement and low in cost, provides great convenience for detection of ultraviolet and visible light, and has high industrial utilizationvalue.

Description

technical field [0001] The invention belongs to the technical field of nanomaterials, and in particular relates to a preparation method and application of an ultralong selenium nanowire. The ultralong selenium nanowire photodetector has a spectral response range from visible light to ultraviolet light and can be used to detect visible light and ultraviolet light. Background technique [0002] So far, many methods for synthesizing Se nanowires have been proposed in the prior art, such as template method, hydrothermal method, molten salt method, pyrolysis method, sol-gel method, vapor phase evaporation method, etc. Although there are various methods for preparing one-dimensional Se nanomaterials, all of these methods require the assistance of templates, external seeds, and harsh reaction conditions to well control the growth of Se one-dimensional nanostructures. Therefore, it is of great significance to develop new methods for the synthesis of one-dimensional Se nanostructures...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L31/18H01L31/108H01L31/0272B82Y40/00B82Y15/00
CPCB82Y15/00B82Y40/00H01L31/0272H01L31/1085H01L31/18Y02P70/50
Inventor 雷炜斌齐瑞娟成岩张媛媛黄荣
Owner EAST CHINA NORMAL UNIV
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