Dependence of the Optimization of the Front Grid Design in Passivated Emitter and Rear Contact c-Si Solar Cells on the Finger Width and the Aspect Ratio

2020 ◽  
Vol 76 (8) ◽  
pp. 774-780
Author(s):  
Myeong Sang Jeong ◽  
Kwan Hong Min ◽  
Sungjin Choi ◽  
Min Gu Kang ◽  
Kyung Taek Jeong ◽  
...  
Keyword(s):  
Solar Cells ◽  
Aspect Ratio ◽  
Si Solar Cells ◽  
Grid Design ◽  
Finger Width

scholarly journals Rheology and Screen-Printing Performance of Model Silver Pastes for Metallization of Si-Solar Cells

Coatings ◽  
2018 ◽  
Vol 8 (11) ◽  
pp. 406 ◽  
Author(s):  
Ceren Yüce ◽  
Markus König ◽  
Norbert Willenbacher
Keyword(s):  
Solar Cells ◽  
Aspect Ratio ◽  
Screen Printing ◽  
Raw Materials ◽  
Wall Slip ◽  
Elongational Flow ◽  
Cross Sectional ◽  
Cell Efficiency ◽  
Si Solar Cells ◽  
Screen Printed

Further strong growth of solar energy conversion based on PV (photovoltaic) technology requires constant improvement to increase solar cell efficiency. The challenge in front-side metallization of Si-solar cells is to print uniform fine lines with a high aspect ratio to achieve higher efficiencies simultaneously with a reduced consumption of raw materials. An in-depth understanding of the relationship between paste composition, rheology and screen-printed line morphology is essential. Three model pastes with similar silver content and corresponding vehicles differing in their thixotropic agent content were investigated. Rheological properties (yield stress, viscosity, wall slip velocity, structural recovery, and fracture strain) were determined using steady and oscillatory shear, as well as elongational flow rheometry. Pastes were screen-printed at various speeds through a layout screen including line widths between 20 and 55 µm. Dried fingers were analyzed with respect to line width, aspect ratio (AR) and cross-sectional area. Our investigations reveal that minor changes of thixotropic agent result in substantial variations of the paste’s flow properties. However, this only weakly affects the line morphology. Irrespective of printing speed or finger opening, AR is slightly increasing; i.e., the screen-printing process is robust against changes in paste rheology.

INDUSTRIALIZATION OF a-Si SOLAR CELLS

1981 ◽  
Vol 42 (C4) ◽  
pp. C4-1155-C4-1164 ◽  
Author(s):  
Y. Kuwano ◽  
M. Ohnishi
Keyword(s):  
Solar Cells ◽  
Si Solar Cells

Studies on Backside Al-Contact Formation in Si Solar Cells: Fundamental Mechanisms

2008 ◽  
Author(s):  
Vishal Mehta ◽  
Bhushan Sopori ◽  
Przemyslaw Rupnowski ◽  
Helio Moutinho ◽  
Aziz Shaikh ◽  
...  
Keyword(s):  
Solar Cells ◽  
Contact Formation ◽  
Si Solar Cells

Laser Crystallization and Dopant Activation of a-Si:H Carrier-Selective Layer in TOPCon Si Solar Cells

2020 ◽  
Vol 10 (5) ◽  
pp. 1283-1289
Author(s):  
George C. Wilkes ◽  
Ajay D. Upadhyaya ◽  
Ajeet Rohatgi ◽  
Mool C. Gupta
Keyword(s):  
Solar Cells ◽  
Laser Crystallization ◽  
Selective Layer ◽  
Dopant Activation ◽  
Si Solar Cells

Ion shower doping for emitter fabrication in crystalline Si solar cells

2012 ◽  
Author(s):  
H. Hashiguchi ◽  
T. Tachibana ◽  
M. Aoki ◽  
T. Kojima ◽  
Y. Ohshita ◽  
...  
Keyword(s):  
Solar Cells ◽  
Si Solar Cells

Screen-printed n-type Si solar cells with laser-doped selective back surface field

Solar Energy ◽  
2021 ◽  
Vol 220 ◽  
pp. 211-216
Author(s):  
H.P. Yin ◽  
W.S. Tang ◽  
J.B. Zhang ◽  
W. Shan ◽  
X.M. Huang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Back Surface ◽  
Back Surface Field ◽  
Si Solar Cells ◽  
Surface Field ◽  
Screen Printed

Laser-Powered Co-Firing Process for Highly Efficient Si Solar Cells

2021 ◽  
pp. 1-7
Author(s):  
Daniel Ourinson ◽  
Gernot Emanuel ◽  
Kaveh Rahmanpour ◽  
Felix Ogiewa ◽  
Harald Muller ◽  
...  
Keyword(s):  
Solar Cells ◽  
Firing Process ◽  
Highly Efficient ◽  
Si Solar Cells
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