The prof. Jeon's team developed conducting oxide nanoparticle whose absorption rate of solar energy increased by 4 times at the maximum. It is changing RuO2 to uniform nanoparticle layer, using the technology the team possesses, the atomic layer deposition technology. It is different from the existing nanoparticle process using solution synthesis which can cause interfacial impurities. It shows the fact that the team has secured technology of high-quality nanoparticle formation and interfacial formation of nano hybrid materials.

Left : The nano metal particle developed by prof. Jeon team will be used to reduce production costs of solar cell and LED.
Right : Prof. Jeon (Division of Materials Science & Technology, College of Engineering) who developed the nano metal particle with RuO2 which allows to reduce cost but improve absorption of sun rays 4 times.

As the conducting oxide nanoparticle developed by the team improves enormously the capacity of absorbing sun rays and emitting ultraviolet rays, it is expected to be used as the basic technology serving an important role in reducing production cost of solar cell. In addition, nanoparticle formation process is expected to improve brightness (the amount of brightness on the light source or reflecting source with a certain area) of LED lighting. The team was able to reduce the production cost by using RuO2, instead of expensive gold, silver, or platinum as conductible material to increase absorption rate of sun rays. RuO2 has conductibility among metallic oxides, and, since it is relatively cheap, can be used in real life. The research supported by the National Research Foundation of Korea was performed jointly with professor Hyung-tak Seo of Ajou University who is HYU alumnus. The research result was published in Journal of Materials Chemistry, academic journal issued by the Royal Society of London for the Improvement of Natural Knowledge. Professor Jeon said, "The nano metal particle developed this time will be used to reduce production costs of solar cell and LED.