Microelectronics, Display, and Solar Cells HOMEResearchMicroelectronics, Display, and Solar Cells
Microelectronics, Display, and Solar Cells
The semiconductor and displays industry of Korea is leading global technology and solar cell industry is fast growing in 21st century. Fabrication processes for semiconductor and display devices, and nano-scale. Our research and education is focused to various micro- and nano-scale chemical process and material development both for silicon and organic devices. Current research topics include printing and all-solution process development for organic lighting and organic solar cells, plasma surface reaction and reactor design, fuel cells, electro-plating, MEMS/NEMS, dye-sensitized solar cells.
차세대 태양전지
다기능연성소자 연구실
다기능연성소자 연구실
다기능연성소자 연구실
Nanoscale Processing
Major Research Areas
Plasma process (Diagnostics & Flowable oxide cvd)
Decreasing feature size, plasma processes for semiconductor become more and more difficult. Therefore, it is necessary to measure properties of plasma such as plasma density, electron temperature, and so on. This experimental technique is called plasma diagnostics, and it is applied to chamber monitoring. In addition, new gap-fill technology is needed for electrical isolation. We adopt flowable oxide CVD process for advanced gap-fill characteristics.

Solution processes for organic devices (Oled, Organic solar cells)
An OLED is a light-emitting diode (LED) in which the emissive electroluminescent layer is a film of organic compounds. Currently, we are focusing on fabricating of OLED device with solution process which can reduce process cost and make large area OLED. And, Organic solar cell (OSC) is a photovoltaic cell that uses organic electronics for light absorption and charge transport. The plastic itself has low production costs in high volumes. Combined with the flexibility of organic molecules, this makes it potentially lucrative for photovoltaic applications.

Transparent electrodes by solution process
Graphene synthesis, CNT, and silver nanowires are researched for transparent electrodes. Graphene has high conductivity, transparency, mechanical strength, and flexibility which impart great advantages for its use as a “"plastic electronic”" material. Electrospray, also known as electrohydrodynamic atomization, has used for CNT and silver nanowires electrodes. For ejection, the liquid meniscus is affected mainly by two forces : electric field force and surface tension force. When the electric forces accompanied by flow pressure exceed the surface tension forces, the ejection of droplets begins.

Solution processible LED based on quantum dots
A quantum dot is a portion of matter (e.g. semiconductor) whose excitons are confined in all three spatial dimensions. Consequently, such materials have electronic properties intermediate between those of bulk semiconductors and those of discrete molecules. And it can be used for quantum dots LED.

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