TY - JOUR
T1 - Efficiency Enhancement of Multicrystalline Silicon Solar Cells by Inserting Two-Step Growth Thermal Oxide to the Surface Passivation Layer
AU - Liao, Shun Sing
AU - Lin, Yueh Chin
AU - Chuang, Chuan Lung
AU - Chang, Edward Yi
PY - 2017/10/8
Y1 - 2017/10/8
N2 -
In this study, the efficiency of the multicrystalline was improved by inserting a two-step growth thermal oxide layer as the surface passivation layer. Two-step thermal oxidation process can reduce carrier recombination at the surface and improve cell efficiency. The first oxidation step had a growth temperature of 780°C, a growth time of 5 min, and with N
2
/O
2
gas flow ratio 12: 1. The second oxidation had a growth temperature of 750°C, growth time of 20 min, and under pure N
2
gas environment. Carrier lifetime was increased to 15.45 μs, and reflectance was reduced 0.52% using the two-step growth method as compared to the conventional one-step growth oxide passivation method. Consequently, internal quantum efficiency of the solar cell increased 4.1%, and conversion efficiency increased 0.37%. These results demonstrate that the two-step thermal oxidation process is an efficient way to increase the efficiency of the multicrystalline silicon solar cells.
AB -
In this study, the efficiency of the multicrystalline was improved by inserting a two-step growth thermal oxide layer as the surface passivation layer. Two-step thermal oxidation process can reduce carrier recombination at the surface and improve cell efficiency. The first oxidation step had a growth temperature of 780°C, a growth time of 5 min, and with N
2
/O
2
gas flow ratio 12: 1. The second oxidation had a growth temperature of 750°C, growth time of 20 min, and under pure N
2
gas environment. Carrier lifetime was increased to 15.45 μs, and reflectance was reduced 0.52% using the two-step growth method as compared to the conventional one-step growth oxide passivation method. Consequently, internal quantum efficiency of the solar cell increased 4.1%, and conversion efficiency increased 0.37%. These results demonstrate that the two-step thermal oxidation process is an efficient way to increase the efficiency of the multicrystalline silicon solar cells.
UR - http://www.scopus.com/inward/record.url?scp=85042593486&partnerID=8YFLogxK
U2 - 10.1155/2017/9503857
DO - 10.1155/2017/9503857
M3 - Article
AN - SCOPUS:85042593486
VL - 2017
SP - 1
EP - 6
JO - International Journal of Photoenergy
JF - International Journal of Photoenergy
SN - 1110-662X
M1 - 9503857
ER -
