If we see from Figure 3 transistor that includes a gate that controls the flow of electrons from one point to another point (source to drain), the first problem is to find the transistor size to 0.1 microns will make source and drain nudge. come closer together The potential fields of gates to control the flow of electrons is more difficult. Because the electron will spontaneously flow easier. It may not be dependent on the field from the gate voltage. The second problem is that Usually, the transistor has to be an electric field to control the flow of current. The size of the field, it must have enough size. Not to be overshadowed by the noise. When transistors are reduced in size much. Distance makes the electric field acts on the decline. As a result, the concentration of the electric field more. This may cause
the electrons to fall out so much uncontrollable, another problem is about the ability of the electrons in the disappearance crossing barriers (Tunnelling) by which the electrons are able to pass from one side to the other side. Walls have potential No need to jump over the wall if the wall thickness is not much, the number of transistors are increasingly in decline. Each transistor will come closer together. Chance of electrons in a transistor to pass interfere with other transistors, it will be more. Or electrons could pass through the insulating oxide between the electrons travel channel (channel) to the Gate
of electronic silicon to molecular electronics - Nanoelectronics
from problems such ideas. The need to revolutionize electronics by changing the traditional approach is to build electronic circuits on Solid State Semiconductor. To the creation of electronic circuits with molecules (Molecular Electronics) new electronics. It must be working at the molecular level ever, and each device is a single electron (Single Electron Devices) revolution that is expected to occur within 10 years, to have a new technology arises replacement before the electronics are. the airless Indeed, to go into such a goal is considered a long-term vision ever. Because no one knows what the final form of molecular electronics. Looks like? Thus, at present, therefore, the proposed approach
with the emphasis on the future of molecular electronics. It has been gathered by the researchers at the Department of Physics. Faculty of Science Mahidol University And establish a nanotechnology research and Molecular Electronics up with that attitude. "If we do it the old electronics. We do not compete with each other, because he started 30 years ago, but if we do that molecular electronics. Everyone from toddlers alike. We also have the opportunity to do something "by the group composed of semiconductor physics. The polymer capable of synthesizing electronic materials. Computational scientists who can design and materials with computer models. And an expert in the theory of quantum. Research on this topic is an ongoing long-term project over 10 years for it to be done throughout life, researchers at all. Due to the way that molecular electronics is directly in line with the development of nanotechnology. And nanotechnology, it is expected to occupy an area of research, most of the 21st century ever
nano-computers
in the future, or mechanical devices that are smaller. Those devices have been called in as nano-robots (Nanorobot) Mechanical nano (Nanomachine) molecular machines (Molecular Machine), those devices must have control. Or processor is the brain of the machine nano. The idea seems to have developed a nano-based computer to control the device. Mechanical or those Unlike conventional computers, nano-computers that we understand each other. Such as desktop computers The works by interacting directly with the human senses. For example, the input is the keyboard. There is a monitor display But nano computer to send data to the sensor. The output signal or working with mechanical nano. The nano-computers to interact directly with devices running over the man. The development of molecular electronics will benefit the development of nano-computers. Also included are useful for developing computer models for example. A desktop computer with
the knowledge we look at the current direction of development of nano-computers into four lines
• Electronic Nanocomputer
nano-electronic computer based functionality similar to the current computer is working by the movement of electrons. However, nano-electronic computer is not relying on the movement of electrons as it is in the vast number of current computers. But it will take one or more electrons, which are driven by the benefits from the results of Quantum (Quantum Effect), a prefix of the computer era, but the mechanism for nano-electronics, computer work. Nano-electronic circuits of a computer, it must be small molecular a new word that comes up. Molecular electronics
is a parody of a polar semiconductor pn general Thereafter, there has been a lot of research, trying to find molecules that have such features. And recently I have discovered a molecule that possesses a Rectifier This (Molecular Rectifiers) making researchers hopeful and encouraged that more and more. Creating electronic circuits with molecules will not fantasize anymore. Despite these findings, rectifiers Molecular ago. However, it has not been able to Rectifier's the time to create an electronic circuit that works perfectly. Search Rectifier's better, it's still ongoing. With the development of technology to control the Rectifier has more stability
before Rectifier Molecular or other basic units such as molecular transistors are sacred.
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