The Transactions of The Korean Institute of Electrical Engineers (전기학회논문지)

The Korean Institute of Electrical Engineers (대한전기학회)
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Light-managing Techniques at Front and Rear Interfaces for High Performance Amorphous Silicon Thin Film Solar Cells

고성능 비정질실리콘 박막태양전지를 위한 전후면 계면에서의 빛의 효율적 관리 기술

  • Kang, Dong-Won (Dept. of Solar & Energy Engineering, Cheongju University)
  • Received : 2016.09.02
  • Accepted : 2017.01.04
  • Published : 2017.02.01
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Abstract

We focused on light management technology in amorphous silicon solar cells to suppress increase in absorber thickness for improving power conversion efficiency (PCE). $MgF_2$ and $TiO_2$ anti-reflection layers were coated on both sides of Asahi VU ($glass/SnO_2:F$) substrates, which contributed to increase in PCE from 9.16% to 9.81% at absorber thickness of only 150 nm. Also, we applied very thin $MgF_2$ as a rear reflector at n-type nanocrystalline silicon oxide/Ag interface to boost photocurrent. By reinforcing rear reflection, we could find the PCE increase from 10.08% up to 10.34% based on thin absorber about 200 nm.

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References

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