by Riko Seibo
Tokyo, Japan (SPX) Nov 26, 2025
Researchers from the Korea Institute of Power Analysis and Chungbuk Nationwide College have pinpointed two distinct forms of defects liable for energy loss in silicon heterojunction photo voltaic cells. The staff, led by Dr. Hee-Eun Music of KIER and Professor Ka-Hyun Kim of CBNU, recognized gradual and quick element defects utilizing a refined methodology of Deep Degree Transient Spectroscopy that captures the total transient response of the gadget.
The research revealed that the important thing defect beforehand believed to be singular is definitely a superposition of deep-level and shallow-level sorts. Evaluation of every element enabled exact measurement of defect vitality ranges, their positions inside the photo voltaic cell, and atomic bonding configuration. Findings point out that quantitative and qualitative assessments of such defects are essential to optimize gadget efficiency and interplay with passivation applied sciences.
The staff established that atomic bonding in defects can shift relying on fabrication methodology and working situations. Hydrogen atoms inside the gadget play a big function in driving these transformations. This analysis could speed up growth of high-efficiency silicon heterojunction and tandem photo voltaic cells integrating KIER’s proprietary strategies.
“This research will speed up the event of high-efficiency silicon heterojunction photo voltaic cells and, moreover, allow us to appreciate world-class tandem photo voltaic cells utilizing KIER proprietary applied sciences,” mentioned Dr. Hee-Eun Music.
“This research offers a basic understanding of the connection between defects and passivation,” said Professor Ka-Hyun Kim. “The developed evaluation methodology could be prolonged not solely to photo voltaic cells but additionally to a variety of semiconductor and show functions together with sensors LEDs and CMOS gadgets.”
Analysis was carried out utilizing SHJ photo voltaic cells manufactured at KIER’s Heart for Superior Photo voltaic PV Know-how and evaluation was carried out at CBNU. The outcomes present a basis for future tandem photo voltaic cell growth.
Analysis Report:Unraveling Mixed-Defect Transformations and Passivation Dynamics in Silicon Heterojunction Solar Cells
Associated Hyperlinks
Korea Institute of Energy Research
All About Solar Energy at SolarDaily.com
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