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A kind of method for rapidly preparing znse powder

A powder, fast technology, applied in the direction of binary selenium/telluride compound, metal selenide/telluride, etc., can solve the problem of high cost, long production cycle, and rarely obtain hexagonal equivalence

Active Publication Date: 2018-09-14
TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The preparation of ZnSe polycrystalline powder, in the preparation of the existing ZnSe powder, it is usually necessary to place the mixture of Zn and Se in a high-temperature reactor, and react for a long time at a temperature of 1000 ° C or higher, resulting in long production cycle and high cost , and the prepared ZnSe powder is generally a cubic phase, rarely a hexagonal phase

Method used

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  • A kind of method for rapidly preparing znse powder
  • A kind of method for rapidly preparing znse powder

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Experimental program
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Effect test

Embodiment 1

[0033] A method for preparing ZnSe powder rapidly, the steps are as follows:

[0034] Mix Zn powder, Se powder and reaction auxiliary agent in proportion to obtain reactant powder, the molar ratio of Zn powder and Se powder in the reactant powder is Zn:Se=1:1, the weight percent of reaction auxiliary agent in the reactant powder 5%. The reaction aid is NH 4 Cl and NH 4 HCO 3 a mixture of which NH 4 Cl accounted for 50% by weight, NH 4 HCO 3 The percentage by weight is 50%. The reactant powder is put into a quartz crucible, and the quartz crucible is placed in a high-pressure combustion reaction device. After the reaction device is evacuated, it is filled with argon gas, and the pressure of the argon gas is 5 MPa. The reactant powder was ignited with an energized tungsten wire under high pressure argon. After being ignited, the reactant powder continues to burn by itself. After the combustion is over, a loose block product is obtained, and the block product is pulverize...

Embodiment 2

[0036] A method for preparing ZnSe powder rapidly, the steps are as follows:

[0037] Mix Zn powder, Se powder and reaction auxiliary agent in proportion to obtain reactant powder, the molar ratio of Zn powder and Se powder in the reactant powder is Zn:Se=1:1, the weight percent of reaction auxiliary agent in the reactant powder 30%. The reaction aid is NH 4 F and NH 4 HCO 3 a mixture of which NH 4 The weight percentage of F is 70%, NH 4 HCO 3 The percentage by weight is 30%. Put the reactant powder into a quartz crucible, place the quartz crucible in a high-pressure combustion reaction device, vacuumize the reaction device and fill it with argon, and the pressure of the argon is 10MPa. The reactant powder was ignited with an energized tungsten wire under high pressure argon. After being ignited, the reactant powder continues to burn by itself. After the combustion is over, a loose block product is obtained, and the block product is pulverized to obtain ZnSe powder. A...

Embodiment 3

[0039] A method for preparing ZnSe powder rapidly, the steps are as follows:

[0040] Mix Zn powder, Se powder and reaction auxiliary agent in proportion to obtain reactant powder, the molar ratio of Zn powder and Se powder in the reactant powder is Zn:Se=1:1, the weight percent of reaction auxiliary agent in the reactant powder 15%. The reaction aid is NH 4 F and (NH 4 ) 2 CO 3 a mixture of which NH 4 The weight percent that F occupies is 60%, (NH 4 ) 2 CO 3 The percentage by weight is 40%. Put the reactant powder into a quartz crucible, place the quartz crucible in a high-pressure combustion reaction device, vacuumize the reaction device and fill it with argon gas, and the pressure of the argon gas is 7MPa. The reactant powder was ignited with an energized tungsten wire under high pressure argon. After being ignited, the reactant powder continues to burn by itself. After the combustion is over, a loose block product is obtained, and the block product is pulverized ...

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Abstract

The invention discloses a method for quickly preparing ZnSe powder. The method includes the following steps: mixing Zn powder with Se powder and a reaction assistant to obtain reactor powder; putting the reactor powder into a quartz crucible, and putting the quartz crucible into a reaction device; vacuuming the reaction device, injecting argon, igniting the reactor powder to obtain a loose block, and smashing the block to obtain the ZnSe powder. The method has the advantages that the method is quick and efficient, reaction conditions are simple, the method is easy to operate and implement, and the grain diameter of the obtained ZnSe powder can reach below 1 micrometer.

Description

technical field [0001] The invention relates to the technical field of photoelectric materials. More specifically, it relates to a method for rapidly preparing ZnSe powder. Background technique [0002] ZnSe is an important semiconductor material with great development potential in many optoelectronic applications. Preparation of ZnSe polycrystalline powder. In the preparation of existing ZnSe powder, it is usually necessary to place the mixture of Zn and Se in a high-temperature reactor and react at a temperature of 1000 ° C or higher for a long time, resulting in long production cycle and high cost. , and the prepared ZnSe powder is generally a cubic phase, and rarely a hexagonal phase. [0003] Therefore, there is a need to provide a preparation method with simple reaction conditions, low cost and rapid production of ZnSe powder. Contents of the invention [0004] First object of the present invention is to provide a kind of method for fast preparation ZnSe powder, a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01B19/04
CPCC01B19/007C01P2002/30C01P2002/72
Inventor 刘光华李江涛
Owner TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI