Department News
Professor Man Soo Choi’s Research Team, First To Identify The Durability Deterioration Mechanism Within Perovskite Solar Cells
Professor Man Soo Choi’s research team
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first to identify the durability deterioration mechanism within perovskite solar cells
- 20% higher efficiency and stability, opening possibilities for application in wearable devices.
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▲ SNU Mechanical and Aerospace Engineering Professor Man Soo Choi’s Team
(From the Left Professor Man Soo Choi, Ph.D. Student Namyoung Ahn, Ph.D. Student Kwi Sung Kwak )
A new-generation highly efficient solar cell that can be used in the recently popular wearable technologies has been developed by a national research team.
SNU Engineering (Dean Kun Woo Lee) revealed on the 10th that the research team of Professor Man Soo Choi, Ph.D. Student Namyoung Ahn and Ph.D. Student Kwi Sung Kwak has successfully managed to identify the durability deterioration mechanism within perovskite solar cells, together with developing a solar cell with a 20% increase in efficiency and stability.
Perovskite has been gaining ground as a new generation solar cell due to it being a high efficient energy conversion material that shows the properties of insulators, semiconductors, conductors and even super conductors. The main problem in commercialization has been the low durability of the object.
Following this, the team has identified the fact that the degradation of the perovskite comes from built up charges in surfactants within the material of the layers within the perovskite and made suggestions to improve its durability.
Through the combination of introducing a device structure that minimizes charge building and the addition of perovskite material structure that improves stability, the team has managed to develop a highly efficient and stable perovskite solar cell.
“The significant of this research in identifying the cause of degradation in perovskite materials and the development of a highly efficient and stable perovskite solar cell. The commercialization of a low cost, flexible and light perovskite solar cell gives rise to the possibility of flexible wearable devices previously thought impossible with existing silicon solar cells.” Said Professor Man Soo Choi.
This research has been funded by the Global Frontier Multiscale Energy System Research Team supported by MSIP and has been published in the international Journal ‘Nature Communications” on 10th November (Research title : Trapped Charge driven degradation of perovskite solar cells).
