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Some milestones in the development of Nanotechnology!
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I think everyone may have often heard the word “nanotechnology”. But maybe you are not familiar with it. So my topic today is “Some milestones of Nanotechnology”. I want to tell you some information about this wonderful technology.
First, I will tell you a plan of Japan-----“Space Elevator “Plan. Last month, Japanese scientists announced that they plan to build a rope between earth and synchronous satellite. The distance is about 36,000 kilometers. It is really a surprising plan! Can we use steel as material? It is impossible , because it is too weight! However, how to achieve this goal? Scientists think Carbon nanotubes are the best choice, which is one of the famous nanomaterials.
So Nanotechnology gives more opportunities to choose. Today I want to tell you five milestones in the development of nanotechnology.
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Whenever talking about the origins of nanotechnology, people have to mention the classic talk--- “There's Plenty of Room at the Bottom”--- that Richard Feynman gave on December 1959. In that talk, he had predicted that a novel technology would appear. It is nanotechnology today.
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The second milestone is the invention of Scanning Tunneling Microscope (STM). In 1981, G. Binnig and H. Rohrer from Zurich Research Laboratory of IBM invented the modern microscope. It lets human firstly observe arrangement of individual atoms on the surface of the material. So This technology promoted the development of Nanotechnology to a great extent.
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In April 1990, two scientists from IBM firstly succeeded in manipulating 35 Xe atoms on the surface of Nickel to form three letters: “IBM”. It shows that human have an ability to manipulate single atom. Because of this technology, it is possible to build some types of nanodevices according to our designs.
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Discovering Carbon nanotubes is another important milestone in nanotechnology! In 1991, professor Iijima of the NEC Laboratory discovered a novel type of Carbon: Carbon tube——a type of long hollow cylindrical carbon molecule. Since that time, Carbon nanotubes aroused great interest in the research community because of their exotic electronic structure and remarkable electronic and mechanical properties
For example, it may be used as high-capacity hydrogen storage media; or building functional device; or used as the central elements of nano-electronic devices including field effect transistors, single-electron transistors, and so on.
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In 2002, IBM announced that they succeeded in developing nanotube FETs using SWNT as semiconductor, which can be integrated together to make inter- and intra-nanotube logic circuits. The device performance and their general characteristics suggest that they can compete with silicon MOSFETs. This technology shows that human have an ability to design and build nano devices.
Today, more and more nano-devices and relative scientific questions are being researched. Some of them have played an important role in our daily life.
https://blog.sciencenet.cn/blog-56417-44672.html
下一篇：My photo presentation
First, I will tell you a plan of Japan-----“Space Elevator “Plan. Last month, Japanese scientists announced that they plan to build a rope between earth and synchronous satellite. The distance is about 36,000 kilometers. It is really a surprising plan! Can we use steel as material? It is impossible , because it is too weight! However, how to achieve this goal? Scientists think Carbon nanotubes are the best choice, which is one of the famous nanomaterials.
So Nanotechnology gives more opportunities to choose. Today I want to tell you five milestones in the development of nanotechnology.
—————————————————————————————
Whenever talking about the origins of nanotechnology, people have to mention the classic talk--- “There's Plenty of Room at the Bottom”--- that Richard Feynman gave on December 1959. In that talk, he had predicted that a novel technology would appear. It is nanotechnology today.
—————————————————————————————
The second milestone is the invention of Scanning Tunneling Microscope (STM). In 1981, G. Binnig and H. Rohrer from Zurich Research Laboratory of IBM invented the modern microscope. It lets human firstly observe arrangement of individual atoms on the surface of the material. So This technology promoted the development of Nanotechnology to a great extent.
—————————————————————————————
In April 1990, two scientists from IBM firstly succeeded in manipulating 35 Xe atoms on the surface of Nickel to form three letters: “IBM”. It shows that human have an ability to manipulate single atom. Because of this technology, it is possible to build some types of nanodevices according to our designs.
—————————————————————————————
Discovering Carbon nanotubes is another important milestone in nanotechnology! In 1991, professor Iijima of the NEC Laboratory discovered a novel type of Carbon: Carbon tube——a type of long hollow cylindrical carbon molecule. Since that time, Carbon nanotubes aroused great interest in the research community because of their exotic electronic structure and remarkable electronic and mechanical properties
For example, it may be used as high-capacity hydrogen storage media; or building functional device; or used as the central elements of nano-electronic devices including field effect transistors, single-electron transistors, and so on.
—————————————————————————————
In 2002, IBM announced that they succeeded in developing nanotube FETs using SWNT as semiconductor, which can be integrated together to make inter- and intra-nanotube logic circuits. The device performance and their general characteristics suggest that they can compete with silicon MOSFETs. This technology shows that human have an ability to design and build nano devices.
Today, more and more nano-devices and relative scientific questions are being researched. Some of them have played an important role in our daily life.
https://blog.sciencenet.cn/blog-56417-44672.html
下一篇：My photo presentation
