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Synthesis method of two-dimensional rhenium sulfide and application thereof in field of photoelectric detector preparation

A photodetector and synthesis method technology, applied in chemical instruments and methods, rhenium compounds, circuits, etc., can solve the problems of unsatisfactory yield and low purity of ReS2, and achieve low cost, good photosensitivity, and simple synthesis. Effect

Inactive Publication Date: 2020-01-03
SHENZHEN LEPOWER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In the prior art, for two-dimensional ReS 2 The synthesis method usually requires complex equipment, and the resulting ReS 2 Low purity and unsatisfactory yield

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] This example is for the preparation of two-dimensional ReS 2 A specific example of .

[0022] Put the precursor material in the SiO 2 / Si substrate in the alumina boat, the aforementioned alumina boat was placed in a three-zone horizontal tube furnace, under inert gas N 2 and reducing gas H 2 In a mixed atmosphere, heat at 625°C for 15 minutes; wherein, the volume ratio of inert gas and reducing gas is 10:1, and the total ventilation volume is 100 sccm. Cool to room temperature after heating, and obtain 2-3 layers of flower-like three-dimensional ReS on the substrate surface after purification 2 The average size of the material is around 5um. Proved by HRTEM and EDS, the ratio of Re and S atoms is 1:2, proving that ReS 2 Crystal formation.

[0023] In this embodiment, the precursor material is made of 5mgReO 3 and 1gS; the substrate is pretreated SiO 2 / Si substrate.

Embodiment 2

[0025] This example is for the preparation of two-dimensional ReS 2 A specific example of .

[0026] Put the precursor material in the SiO 2 / Si, sapphire, and mica sheet-based alumina boats, place the aforementioned alumina boats in a three-zone horizontal tube furnace, and heat at 625°C for 15 minutes in a mixed atmosphere of inert gas He and reducing gas methane; Wherein, the volume ratio of inert gas and reducing gas is 10:1, and the total ventilation volume is 100 sccm. Cool to room temperature after heating, and obtain ReS on three different substrates after purification 2 materials, by AFM scanning, the ReS of three different substrates were obtained 2 The surface roughnesses are: 0.06nm, 0.3nm, and 0.6nm. Through the SAED test, it can be confirmed that this material is all ReS 2 .

[0027] In this embodiment, the precursor material is made of 5mgReO 3 and 1gS; the substrate is a pretreated sapphire substrate.

Embodiment 4

[0029] This embodiment is to measure the two-dimensional ReS obtained in Examples 1-3. 2 Specific examples of beneficial effects.

[0030] 4.1 Sample crystal structure measurement

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Abstract

The invention belongs to the field of photoelectric detector preparation, and particularly relates to a synthesis method of two-dimensional rhenium sulfide and an application thereof in the field of photoelectric detector preparation. The invention provides a synthesis method of two-dimensional ReS2, which comprises the steps of placing a precursor material on a substrate, heating the precursor material in an atmosphere of an inert gas and a reducing gas, and carrying out cooling to room temperature after heating, and carrying out purifying to obtain a product, wherein the precursor material comprises ReO3 and S. The invention also provides an application of the two-dimensional ReS2 prepared by the synthesis method in the field of photoelectric detector preparation. According to the invention, the raw materials are simple and easy to obtain, the cost is low, and the purity of the product can reach 99%. Through detection, the prepared product has good photosensitivity, stability and rapid switching performance. The technical problem that there is no method for efficiently, easily and conveniently synthesizing high-quality rhenium disulfide in the prior art is solved.

Description

technical field [0001] The invention belongs to the field of photodetector preparation, and in particular relates to a synthesis method of two-dimensional rhenium sulfide and an application in the field of photodetector preparation. Background technique [0002] In the past decade, graphene has attracted great research interest because of its electrical properties, especially its extremely high carrier mobility. However, graphene has a zero energy bandgap, hindering its development in functional optoelectronic devices. [0003] The invention of graphene accelerated research into a new field of two-dimensional materials (2D). In recent years, transition metal dichalcoalkanes (TMDCs) have attracted extensive attention due to their graphene-like two-dimensional (2-D) layer structures. ReS 2 It has a two-dimensional layer structure similar to graphene materials, and because it is not a zero-energy bandgap structure, there is no obstacle to the development of graphene material...

Claims

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Application Information

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IPC IPC(8): H01L31/18C01G47/00
CPCC01G47/00H01L31/18Y02P70/50
Inventor 秦胜妍赵飞屈军毅
Owner SHENZHEN LEPOWER CO LTD
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