What is Nano? Nano is what the detailed

1,000,000,000 nm = 1 m (m) 1,000,000 nm = 1 mm (mm) 1,000 nm = 1 microns (µm) Sometimes you will see Amy this unit, for 10^-10m. 1 NM = 10 Amy (recorded as Å)

Overview

Silicon single crystal atom nano-scan tunneling microscope image. A single bacterium is invisible to the naked eye and measured in a microscope about five microns in diameter. For example, suppose a hair has a diameter of 0.05 millimeters, and the average of it is roughly 50,000, and the thickness of each is about one nanometer. In other words, a nanometer is about 0.000001 millimeters. Nanotechnology, sometimes referred to as nanotechnology, is the study of the properties and applications of the materials in structural sizes ranging from 1 to 100 nm. The development of nanotechnology has led to many new disciplines related to nanotechnology. There are nano-medicine, nano-chemistry, nano-electronics, nano-materials science, nano-biology and so on. Scientists all over the world know the importance of nanotechnology to the development of science and technology, so all countries in the world do not hesitate to develop nanotechnology, to seize the strategic heights in the field of nanotechnology. China held a symposium on Nanotechnology Development Strategy in 1991, and formulated a strategic strategy for development. In the past more than 10 years, the research on nanometer materials and nanostructures in China has made remarkable achievements. At present, China's achievements in the field of nanomaterials have been higher than any country in the world, it is proved that our country in the field of nanotechnology occupies a pivotal position. Nano-effect refers to the nano-materials have the traditional materials do not have the strange or abnormal physical, chemical characteristics, such as the original conductive copper to a certain level of the boundary is not conductive, the original insulation of silicon dioxide, crystals, etc., at a certain level of the boundary of the nano-conductivity began. This is due to the characteristics of small particle size, large specific surface area, high surface energy and large proportion of surface atoms, as well as its special three effects: surface effect, small size effect and macroscopic quantum tunneling effect. For solid powder or fiber, when it has one dimensional size less than 100nm, that is, nano-size, can be called the so-called nano-materials, for the ideal spherical particles, when the specific surface area is greater than 60m2/g, its diameter will be less than 100nm, to reach the nanometer size.

The meaning of nanometer technology

Nanotechnology refers to a new technique for studying the laws and properties of electrons, atoms, and molecules within the scale of 0.1~100 nanoparticles. In the process of studying the composition of matter, scientists found that several, dozens of or so atoms or molecules isolated at the nanometer scale show many new properties, and the technology that utilizes these properties is called nanotechnology. The main differences between nanotechnology and microelectronic technology are: Nanotechnology is the study of the control of individual atoms, molecules to achieve specific functions, is the use of electronic volatility to work, and microelectronics mainly through the control of electronic groups to achieve its function, is to use the particles of electrons to work.　　The purpose of research and development of nanotechnology is to realize the effective control of the whole microcosm. Nanotechnology is a comprehensive subject with strong crossover, and the contents of the research involve a wide range of modern science and technology. In the 1993, the International Nanotechnology Steering Committee divided nanotechnology into 6 branches of nano-electronics, nano-physics, nano-chemistry, nano-biology, nano-processing and nano-metrology.　　Nano-Physics and nano-chemistry are the theoretical basis of nanotechnology, and nano-electronics is the most important content of nano-technology. Nanotechnology is the rapid development of the new technology in the early 90, the ultimate goal is that human beings in accordance with their own direct manipulation of a single atom, molecule, to create a specific function of the product. Nanotechnology has revealed a visible atom and molecule world in an unprecedented resolution. This shows that human beings are becoming more and more into the microcosm, and the level of people's understanding and transformation of the microcosm has increased unprecedented heights. Three kinds of concepts of nanometer technology

First Kind

From the research to date, nanotechnology is divided into three kinds of concepts. The first is the molecular nanotechnology proposed by Dr. Drexler, an American scientist, in the book "The Machine of Creation" in 1986. According to this concept, the machine of the combinatorial molecule can be applied, so that all kinds of molecules can be assembled arbitrarily, which can produce any kind of molecular structure. This concept of nanotechnology has not made significant progress.

The second concept locates nanotechnology as the limit of micro-processing technology. This is the technique of artificially forming a nanometer size structure by "processing" the nanometer precision. This nano-scale processing technology also makes the semiconductor miniaturization is about to reach its limit. Even if the existing technology develops, theoretically speaking, it will eventually reach the limit. This is because if the wire amplitude of the circuit becomes smaller, the insulating film that makes up the circuit is extremely thin, which will destroy the insulating effect. In addition, there are problems such as fever and shaking. In order to solve these problems, researchers are studying new nano-technology.

Third Kind

The third concept is made from the biological point of view.　　In the original, the organism has the nanometer structure in the cell and the biofilm. Nanotechnology refers to a new technique for studying the laws and properties of electrons, atoms, and molecules within the scale of 0.1~100 nanoparticles. In their study of the composition of matter, scientists found that several, dozens of or so atoms or molecules isolated at the nanometer scale showed significant new features, and that the use of these properties to manufacture technologies with specific functional devices is called nanotechnology.

Comprehensive

Nanotechnology is a comprehensive subject with strong crossover, and the contents of the research involve a wide range of modern science and technology. Nanotechnology has now included nano-biology, nano-electronics, nano-materials, nano-mechanics, nano-chemistry and other disciplines. From Micron Technology, including microelectronics, to nanotechnology, human beings are becoming more and more into the microcosm, and the level of understanding and transforming the microcosm has been raised to unprecedented heights.　　Qian Xuesen, a famous Chinese scientist, has pointed out that the structure of nano-and-Nano is the next phase of science and technology development, a technological revolution, which will cause another 21st century industrial revolution. Although there is a long distance to go in the application phase, but due to the vast application of nanotechnology, the United States, Japan, the United Kingdom and other developed countries to give high priority to nanotechnology, have drawn up research plans, and related research.