Details
| Original language | English |
|---|---|
| Pages (from-to) | 523-530 |
| Number of pages | 8 |
| Journal | Energy Procedia |
| Volume | 92 |
| Publication status | Published - 1 Aug 2016 |
| Event | 6th International Conference on Crystalline Silicon Photovoltaics, SiliconPV 2016 - Chambery, France Duration: 7 Mar 2016 → 9 Mar 2016 |
Abstract
We measure and discuss the complex refractive index of conventional ethylene vinyl acetate (EVA) and an EVA with enhanced UV-transmission based on spectroscopic ellipsometry, transmission and reflection measurements over the wavelength range from 300-1200 nm. Ray tracing of entire solar cell modules using this optical data predicts a 1.3% increase in short circuit current density (Jsc) at standard test conditions for EVA with enhanced UV transmission. This is in good agreement with laboratory experiments of test modules that result in a 1.4% increase in Jsc by using a UV transparent instead of a conventional EVA. Further, ray tracing simulations with realistic irradiation conditions with respect to angular and spectral distribution reveal an even larger Jsc increase of 1.9% in the yearly average. This increase is largest in the summer months with an increase of up to 2.3%.
Keywords
- ethylene vinyl acetate (EVA), PV modules, Ray tracing, UV transmission
ASJC Scopus subject areas
- Energy(all)
- General Energy
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In: Energy Procedia, Vol. 92, 01.08.2016, p. 523-530.
Research output: Contribution to journal › Conference article › Research › peer review
}
TY - JOUR
T1 - Optical Constants of UV Transparent EVA and the Impact on the PV Module Output Power under Realistic Irradiation
AU - Vogt, Malte R.
AU - Holst, Hendrik
AU - Schulte-Huxel, Henning
AU - Blankemeyer, Susanne
AU - Witteck, Robert
AU - Hinken, David
AU - Winter, Matthias
AU - Min, Byungsul
AU - Schinke, Carsten
AU - Ahrens, Ingo
AU - Köntges, Marc
AU - Bothe, Karsten
AU - Brendel, Rolf
N1 - Funding Information: This work was supported by the German Federal Ministry for Economic Affairs and Energy through the “PERC2Module” project under Contract 0325641. We would also like to thank Martin Wolf, Tobias Gandy, Sarah Spätlich, Ulrike Sonntag, Till Brendemühl for the cell production.
PY - 2016/8/1
Y1 - 2016/8/1
N2 - We measure and discuss the complex refractive index of conventional ethylene vinyl acetate (EVA) and an EVA with enhanced UV-transmission based on spectroscopic ellipsometry, transmission and reflection measurements over the wavelength range from 300-1200 nm. Ray tracing of entire solar cell modules using this optical data predicts a 1.3% increase in short circuit current density (Jsc) at standard test conditions for EVA with enhanced UV transmission. This is in good agreement with laboratory experiments of test modules that result in a 1.4% increase in Jsc by using a UV transparent instead of a conventional EVA. Further, ray tracing simulations with realistic irradiation conditions with respect to angular and spectral distribution reveal an even larger Jsc increase of 1.9% in the yearly average. This increase is largest in the summer months with an increase of up to 2.3%.
AB - We measure and discuss the complex refractive index of conventional ethylene vinyl acetate (EVA) and an EVA with enhanced UV-transmission based on spectroscopic ellipsometry, transmission and reflection measurements over the wavelength range from 300-1200 nm. Ray tracing of entire solar cell modules using this optical data predicts a 1.3% increase in short circuit current density (Jsc) at standard test conditions for EVA with enhanced UV transmission. This is in good agreement with laboratory experiments of test modules that result in a 1.4% increase in Jsc by using a UV transparent instead of a conventional EVA. Further, ray tracing simulations with realistic irradiation conditions with respect to angular and spectral distribution reveal an even larger Jsc increase of 1.9% in the yearly average. This increase is largest in the summer months with an increase of up to 2.3%.
KW - ethylene vinyl acetate (EVA)
KW - PV modules
KW - Ray tracing
KW - UV transmission
UR - http://www.scopus.com/inward/record.url?scp=85014507391&partnerID=8YFLogxK
U2 - 10.1016/j.egypro.2016.07.136
DO - 10.1016/j.egypro.2016.07.136
M3 - Conference article
AN - SCOPUS:85014507391
VL - 92
SP - 523
EP - 530
JO - Energy Procedia
JF - Energy Procedia
SN - 1876-6102
T2 - 6th International Conference on Crystalline Silicon Photovoltaics, SiliconPV 2016
Y2 - 7 March 2016 through 9 March 2016
ER -