Abstract
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 language | English |
|---|---|
| Pages (from-to) | 1684-1688 |
| Number of pages | 5 |
| Journal | Current Applied Physics |
| Volume | 13 |
| Issue number | 8 |
| DOIs | |
| State | Published - 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’.
Keywords
- Degradation
- Full spectrum
- Light soaking
- Solar cell
- UV range