Monthly Archives - January 2020

About the MOCVD

Summary of MOCVD MOCVD(Metal Organic Chemical Vapor Deposition) technology, also known as OMVPE, MOVPE, etc., is a new technology proposed by rockwell corporation in 1968 for the preparation of compound semiconductor single thin films. MOCVD technique is to dilute the metal organic compounds in the carrier gas and Ⅴ ethnic or Ⅵ hydride in the heated elements of substrate and decomposition reaction, the products of the reaction, reaction to the epitaxial substrate to form a technology of epitaxial film, this [...]

Properties and application prospects of ferric oxide nanometer powders

gas-sensitive characteristics and applications Due to surface effect, when the environment changes, the ion valence state of particle on the surface or interface and electronic changes with the change of external environment, can be made sensitive sensors, nanometer alpha Fe2O3 studies have found that they have a good of flammable or toxic gas detection of gas sensitive properties, used for hydrogen, ethanol, carbon monoxide and other toxic gas detection. Zhang et al. [9] studied the sensing characteristics of ethanol with [...]

Preparation method of nanometer ferroferric oxide Fe3O4 particles

The development of nanotechnology has opened up a new field for the research of various materials. Nowadays, a variety of nanomaterials have been fully applied in the field of autocorrelation, and the value of nanomaterials has been fully affirmed. Therefore, the development of new nanomaterials has become a necessity of modern society, with great development prospects. Nanometer Fe3O4 has the characteristics of small particle size, high specific surface area and magnetic sensitivity. It has been widely applied in the [...]

The technology of industrialized production of nanometer copper powder has developed by Chinese manufacturer

The bulk application of nanometer copper powder in the market is based on the cost. At present, the high cost cannot realize the mass application, and the reason for the high cost is that the industrial production of ordinary equipment cannot be realized. Therefore, the first problem we solved is to use ordinary conventional equipment to realize the industrial production of nanometer copper powder. If the cost problem is not solved, even the preparation of high purity, ultra-fineness, narrow [...]