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RESEARCH

Nano materials

With excellent mechanical, electrical and thermal properties, Carbon Nanotube is a best material of choice for field electron emission based devices.

Carbon nanotube (CNT) is a novel material with excellent physical and electrical properties. Since its discovery in 1991, through cost reduction and yield improvement, applications in high-tech industries such as displays, batteries and sensors are gradually increasing.

The lab manufactures a direct grown carbon nanotube electron emission source with excellent field emission characteristics based on technological know-how and through continuous R&D investment. Using our technology, we can effectively control variables such as the density, length and diameter of carbon nanotubes grown on various substrates. Electron emission source is not just limited to be used as X-ray and UV lamp source but can be used for many electronic purposes where field emission source can be applied.

Digital X-ray

The lab has developed a field emission based digital X-ray source that uses carbon nanotubes (CNT) as a cathode material.

All X-ray sources work on the principle of generating X-rays from the accelerated electrons produced by a cathode electrode. Thus, the material of choice and shape of the cathode has a great influence on the performance of X-ray sources.

However, the widely available filament based analog X-ray sources generate electrons by heating the filament, which makes it difficult to quickly switch on/off the cathode, reduce the unnecessary radiation, miniaturize the X-ray system and improve the resolution of the X-ray images. These problems are inevitable due to filament’s innate characteristic. Hence, the X-ray industry is in great need of an alternative digital X-ray source based on field emission cathode using nanomaterials.

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02447, Advanced Nano X-ray Laboratory, Rm 623, Space21 Building, 26 Kyunghee-daero, Dongdaemoon-gu, Seoul-si, Republic of Korea

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