Abstract
The effects of the size and density of a pyramidal texture, as formed on the surface of Si solar cells to increase the light trapping efficiency, on the optical reflectance and absorptance were examined by comparing simulation results and experimental observations. A ray tracing algorithm capable of the direct calculation of the absorbed energy in active Si was utilized for the simulation. The simulation results showed that the optical reflectance spectra, i.e., the absorptances, of the textured surface with a fixed density of pyramids were not affected by the pyramid pitch, whereas the spectra with varying density of pyramids decreased with an increase in the density of the pyramids. Observations similar to the simulation results were observed from the experimentally textured surfaces, indicating that the density of the pyramid area, i.e., the area of the flat region, is the most crucial factor affecting the optical behavior of a textured Si surface with three-dimensional pyramid patterns.
| Original language | English |
|---|---|
| Journal | Current Applied Physics |
| Volume | 11 |
| Issue number | 4 SUPPL. |
| DOIs | |
| Publication status | Published - 2011 Jul 1 |
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Keywords
- Etching
- Ray tracing
- Si solar cell
- Texture
ASJC Scopus subject areas
- Materials Science(all)
- Physics and Astronomy(all)
Cite this
Analysis of light trapping effects in Si solar cells with a textured surface by ray tracing simulation. / Byun, Seok Joo; Byun, Seok Yong; Lee, Jangkyo; Kim, Jae Wan; Lee, Taek Sung; Cho, Kyuman; Sheen, Dongwoo; Tark, Sung Ju; Kim, Donghwan; Kim, Won Mok.
In: Current Applied Physics, Vol. 11, No. 4 SUPPL., 01.07.2011.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Analysis of light trapping effects in Si solar cells with a textured surface by ray tracing simulation
AU - Byun, Seok Joo
AU - Byun, Seok Yong
AU - Lee, Jangkyo
AU - Kim, Jae Wan
AU - Lee, Taek Sung
AU - Cho, Kyuman
AU - Sheen, Dongwoo
AU - Tark, Sung Ju
AU - Kim, Donghwan
AU - Kim, Won Mok
PY - 2011/7/1
Y1 - 2011/7/1
N2 - The effects of the size and density of a pyramidal texture, as formed on the surface of Si solar cells to increase the light trapping efficiency, on the optical reflectance and absorptance were examined by comparing simulation results and experimental observations. A ray tracing algorithm capable of the direct calculation of the absorbed energy in active Si was utilized for the simulation. The simulation results showed that the optical reflectance spectra, i.e., the absorptances, of the textured surface with a fixed density of pyramids were not affected by the pyramid pitch, whereas the spectra with varying density of pyramids decreased with an increase in the density of the pyramids. Observations similar to the simulation results were observed from the experimentally textured surfaces, indicating that the density of the pyramid area, i.e., the area of the flat region, is the most crucial factor affecting the optical behavior of a textured Si surface with three-dimensional pyramid patterns.
AB - The effects of the size and density of a pyramidal texture, as formed on the surface of Si solar cells to increase the light trapping efficiency, on the optical reflectance and absorptance were examined by comparing simulation results and experimental observations. A ray tracing algorithm capable of the direct calculation of the absorbed energy in active Si was utilized for the simulation. The simulation results showed that the optical reflectance spectra, i.e., the absorptances, of the textured surface with a fixed density of pyramids were not affected by the pyramid pitch, whereas the spectra with varying density of pyramids decreased with an increase in the density of the pyramids. Observations similar to the simulation results were observed from the experimentally textured surfaces, indicating that the density of the pyramid area, i.e., the area of the flat region, is the most crucial factor affecting the optical behavior of a textured Si surface with three-dimensional pyramid patterns.
KW - Etching
KW - Ray tracing
KW - Si solar cell
KW - Texture
UR - http://www.scopus.com/inward/record.url?scp=80455174735&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=80455174735&partnerID=8YFLogxK
U2 - 10.1016/j.cap.2011.01.048
DO - 10.1016/j.cap.2011.01.048
M3 - Article
AN - SCOPUS:80455174735
VL - 11
JO - Current Applied Physics
JF - Current Applied Physics
SN - 1567-1739
IS - 4 SUPPL.
ER -