Diamonds have the best insulating and compressive properties and the highest thermal conductivity as semiconductor materials, but diamonds are usually very resistant and limit their application. Japanese researchers have incorporated impurities into diamonds to solve this problem, making bipolar transistors for the first time, opening up new avenues for the development of energy-efficient semiconductor components.
The Japan Industrial Technology Research Institute recently published a bulletin that the insulation of diamond semiconductor materials determines that it will not be damaged under high voltage. Good thermal conductivity allows high-efficiency to dissipate internal heat when a strong current passes.
But the high resistance of diamonds is a major obstacle in its application. Researchers such as the researcher at the Institute of Industrial Technology, Yamazaki Satoshi, have noticed that even if impurities are incorporated into the diamond, the diamond maintains a good crystal structure. On this basis, they developed a technique for mixing high-concentration impurities into diamonds, and using the mechanism of jump conductance to greatly reduce the resistance of diamonds.
Using this low-resistance diamond, the researchers succeeded in developing bipolar transistors necessary for high-performance semiconductor components. Bipolar transistors have current amplification and are widely used in broadcast television, telecommunications, computers, automation, and home appliances as an efficient current control component.
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