UNIST/Research Institute of Energy Technology research team improves solar cell efficiency and stability with cheap tin

2024-08-05 06:41:03

A domestic research team has developed a technology to increase the efficiency and stability of perovskite solar cells using inexpensive tin chloride.

Since tin is not completely oxidized, defects naturally occur on the surface. High efficiency and stability can be secured at the same time through treatment to reduce defects.

The surface-treated device achieved an efficiency of 25.56% (certified efficiency of 24.92%), and maintained its initial performance of 80% for 1,000 hours in a thermal stability test at 65 degrees.

Professor Kim Dong-seok said, “Through this research, we succeeded in suppressing the agglomeration of tin oxide and increasing crystallinity,” and added, “This technology will play an important role in increasing the stability of solar cells.”

 

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