Effectiveness of full spectrum light soaking on solar cell degradation analysis

Sang Hyun Park, Sejin Ahn, Jihye Gwak, Keeshik Shin, Seoung Kyu Ahn, Kyunghoon Yoon, Yunae Cho, Dong Wook Kim, Jae Ho Yun

Research output: Contribution to journalArticlepeer-review

5 Scopus citations


This study examined the effect of UV-spectrum light soaking on solar cell degradation tests. An indoor light soaking test was evaluated over three different spectral ranges: "UV only", "UV blocked" and "Full spectrum". a-Si:H and poly-crystalline silicon solar cell technologies were studied by light soaking tests with the same optical filter configurations. The I-V measurement results demonstrated that "UV only" irradiated solar cells exhibited the smallest output power degradation, which was only half of a percent variation compared with the full spectrum light soaking case. Using a filter that excluded the effect of the UV spectral range on light soaking, the "UV blocked" case also exhibited a significant output power degradation of the solar cells. A comparative analysis of the solar cell response, based on the I-V characteristics and the diode ideality factor under these different light soaking spectra, demonstrated the importance of the full spectrum light soaking test in the evaluation of the long-term performance of solar cells.

Original languageEnglish
Pages (from-to)1684-1688
Number of pages5
JournalCurrent Applied Physics
Issue number8
StatePublished - 2013

Bibliographical note

Funding Information:
This research was financially supported by a grant from the Fundamental R&D Program for Core Technology of Materials funded by the Korean Ministry of Knowledge Economy (grant no. 10037233 ) and by KRCF (Korea Research Council of Fundamental Science & Technology) and KIER (Korea Institute of Energy Research) for the ‘NAP (National Agenda Project) program’.


  • Degradation
  • Full spectrum
  • Light soaking
  • Solar cell
  • UV range


Dive into the research topics of 'Effectiveness of full spectrum light soaking on solar cell degradation analysis'. Together they form a unique fingerprint.

Cite this