Details
| Original language | English |
|---|---|
| Article number | 7332239 |
| Pages (from-to) | 111-118 |
| Number of pages | 8 |
| Journal | IEEE journal of photovoltaics |
| Volume | 6 |
| Issue number | 1 |
| Publication status | Published - Jan 2016 |
Abstract
It is well known that the absorbance of soda-lime glass is very sensitive to the amount of iron contamination; therefore, it strongly affects the power output of mass-produced crystalline silicon solar cell modules. We use a combination of ellipsometry and transmission measurements to determine the optical constants, at wavelengths between 300 and 1690 nm, of soda-lime-silica glasses containing an iron content between 1‰ and 0.01‰, measured with inductive coupled plasma optical emission spectroscopy. We derive two different semiempirical models for the extinction coefficient of soda-lime-silica glass as a function of its iron content: one model for iron alone and the other model for iron including other typical remaining coloring agents. Furthermore, we use ray tracing and spice simulations to predict the power losses in standard modules as a function of iron content in their cover glass sheet. Considering a module with 3.2-mm glass thickness, our results predict a decline in module output power due to iron content in the glass of 1.1% (3 W) for Fe2O 3 = 0.1% and 9.8% (28 W) for Fe 2O3 = 1%.
Keywords
- Iron content, optical losses, ray tracing, soda-lime glass, solar cell module
ASJC Scopus subject areas
- Materials Science(all)
- Electronic, Optical and Magnetic Materials
- Physics and Astronomy(all)
- Condensed Matter Physics
- Engineering(all)
- Electrical and Electronic Engineering
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In: IEEE journal of photovoltaics, Vol. 6, No. 1, 7332239, 01.2016, p. 111-118.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Measurement of the optical constants of soda-lime glasses in dependence of iron content and modeling of iron-related power losses in crystalline si solar cell modules
AU - Vogt, Malte Ruben
AU - Hahn, Harald
AU - Holst, Hendrik
AU - Winter, Matthias
AU - Schinke, Carsten
AU - Kontges, Marc
AU - Brendel, Rolf
AU - Altermatt, Pietro P.
N1 - Funding Information: This work was supported by the SONNE Project funded by the German Federal Ministry for Environment under Contract 5869_036.
PY - 2016/1
Y1 - 2016/1
N2 - It is well known that the absorbance of soda-lime glass is very sensitive to the amount of iron contamination; therefore, it strongly affects the power output of mass-produced crystalline silicon solar cell modules. We use a combination of ellipsometry and transmission measurements to determine the optical constants, at wavelengths between 300 and 1690 nm, of soda-lime-silica glasses containing an iron content between 1‰ and 0.01‰, measured with inductive coupled plasma optical emission spectroscopy. We derive two different semiempirical models for the extinction coefficient of soda-lime-silica glass as a function of its iron content: one model for iron alone and the other model for iron including other typical remaining coloring agents. Furthermore, we use ray tracing and spice simulations to predict the power losses in standard modules as a function of iron content in their cover glass sheet. Considering a module with 3.2-mm glass thickness, our results predict a decline in module output power due to iron content in the glass of 1.1% (3 W) for Fe2O 3 = 0.1% and 9.8% (28 W) for Fe 2O3 = 1%.
AB - It is well known that the absorbance of soda-lime glass is very sensitive to the amount of iron contamination; therefore, it strongly affects the power output of mass-produced crystalline silicon solar cell modules. We use a combination of ellipsometry and transmission measurements to determine the optical constants, at wavelengths between 300 and 1690 nm, of soda-lime-silica glasses containing an iron content between 1‰ and 0.01‰, measured with inductive coupled plasma optical emission spectroscopy. We derive two different semiempirical models for the extinction coefficient of soda-lime-silica glass as a function of its iron content: one model for iron alone and the other model for iron including other typical remaining coloring agents. Furthermore, we use ray tracing and spice simulations to predict the power losses in standard modules as a function of iron content in their cover glass sheet. Considering a module with 3.2-mm glass thickness, our results predict a decline in module output power due to iron content in the glass of 1.1% (3 W) for Fe2O 3 = 0.1% and 9.8% (28 W) for Fe 2O3 = 1%.
KW - Iron content
KW - optical losses
KW - ray tracing
KW - soda-lime glass
KW - solar cell module
UR - http://www.scopus.com/inward/record.url?scp=84947967844&partnerID=8YFLogxK
U2 - 10.1109/JPHOTOV.2015.2498043
DO - 10.1109/JPHOTOV.2015.2498043
M3 - Article
AN - SCOPUS:84947967844
VL - 6
SP - 111
EP - 118
JO - IEEE journal of photovoltaics
JF - IEEE journal of photovoltaics
SN - 2156-3381
IS - 1
M1 - 7332239
ER -