|veritas-a.com/Researcher Seo Gap-suk
femtoskku.blogspot.kr/Professor Ahn Tae-kyu
A research team led by Professor Ahn Tae-kyu, researcher Seo Gap-suk of the Department of Energy Science at SKKU, and two other experts from other institutions succeeded in developing a new technology which can analyze the defects of perovskite solar cells. A perovskite solar cell is a new kind of solar cell developed in 2013, which is now in the limelight as a solar cell for the next generation. Existing research has constantly made an effort to discover easy and controllable solution processes; however, unexpected defects were generated when a possible solution was found, and it became a major barrier that reduced the efficiency of the perovskite solar cell.
To solve this problem, the research team analyzed the energy defects located deep in the cell. By using the deeper level of defect analysis methods, the research team succeeded to obtain information such as the distribution and density of the perovskite solar cell according to the depth of its defects. It is the first time to identify the hidden mechanism of how defects directly affect the efficiency of the cells. Through this new technology, it is expected to contribute in introducing a new perovskite solar cell which has high stability and efficiency in converting energy.
This research was carried out with the support from the State Science and Technology Commission and was covered on May 17th in the Energy and Environmental Science, a journal of environmental science and enegy.
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