TY - GEN
T1 - Biomimetic antireflection coating for efficiency enhancement of triple-junction solar cells utilizing nanosphere lithography
AU - Chiu, M. Y.
AU - Chang, F. Y.
AU - Chang, C. H.
AU - Tsai, M. A.
AU - Yu, Peichen
PY - 2010/12/20
Y1 - 2010/12/20
N2 -
In this work, we demonstrate a thorough device design, fabrication, characterization, and analysis of biomimetic antireflective structures implemented on a Ga
0.5
In
0.5
P/GaAs/Ge triple-junction solar cell. The sub-wavelength structures are fabricated on a silicon nitride passivation layer using polystyrene nanosphere lithography followed by anisotropic etching. Both the reflectance spectroscopy and external quantum efficiency measurements confirm the improved optical absorption in the ultraviolet/blue and near-infrared wavelengths. Hence, the conversion efficiency of cell with sub-wavelength structure (SWS) is enhanced by 46.1% and 3.4% due to much improved current-matching, compare to cells without an ARC and SL ARC, respectively. We further employ RCWA method to analyze the reflectance by tuning structural factors such as periodicity or height of the SWS.
AB -
In this work, we demonstrate a thorough device design, fabrication, characterization, and analysis of biomimetic antireflective structures implemented on a Ga
0.5
In
0.5
P/GaAs/Ge triple-junction solar cell. The sub-wavelength structures are fabricated on a silicon nitride passivation layer using polystyrene nanosphere lithography followed by anisotropic etching. Both the reflectance spectroscopy and external quantum efficiency measurements confirm the improved optical absorption in the ultraviolet/blue and near-infrared wavelengths. Hence, the conversion efficiency of cell with sub-wavelength structure (SWS) is enhanced by 46.1% and 3.4% due to much improved current-matching, compare to cells without an ARC and SL ARC, respectively. We further employ RCWA method to analyze the reflectance by tuning structural factors such as periodicity or height of the SWS.
UR - http://www.scopus.com/inward/record.url?scp=78650168536&partnerID=8YFLogxK
U2 - 10.1109/PVSC.2010.5616770
DO - 10.1109/PVSC.2010.5616770
M3 - Conference contribution
AN - SCOPUS:78650168536
SN - 9781424458912
T3 - Conference Record of the IEEE Photovoltaic Specialists Conference
SP - 471
EP - 474
BT - Program - 35th IEEE Photovoltaic Specialists Conference, PVSC 2010
Y2 - 20 June 2010 through 25 June 2010
ER -