scholarly journals Water Soluble Aluminum Paste Using Polyvinyl Alcohol for Silicon Solar Cells

2015 ◽  
Vol 2015 ◽  
pp. 1-6 ◽  
Author(s):  
Abdullah Uzum ◽  
Taiki Ashikaga ◽  
Takuma Noguchi ◽  
Hiroyuki Kanda ◽  
Toshifumi Matsuoka ◽  
...  
Keyword(s):  
Solar Cells ◽  
Polyvinyl Alcohol ◽  
Screen Printing ◽  
Aluminum Particle ◽  
Water Soluble ◽  
Silicon Solar Cells ◽  
Particle Sizes ◽  
Back Side ◽  
Sem Image ◽  
Soluble Aluminum

Screen-printing aluminum is still dominantly used in the solar cell fabrication process. Ethyl cellulose is one of the main contents of screen-printing pastes that require dichloromethane for its cleaning process, a substance renowned for being extremely toxic and threatening to the human body. Developing environmental friendly aluminum pastes is essential in order to provide an alternative to the commercial pastes. In this work, new, nontoxic polyvinyl alcohol-based aluminum pastes are introduced. Polyvinyl alcohol was used as a soluble polymer that can be synthesized without saponification and that is also soluble in water. Three different pastes were developed using different recipes including many aluminum particle sizes varying from 3.0 to 45 μm, aluminum oxide with particle sizes between 35 and 50 μm, and acetic acid. Evaluation of the pastes was carried out by Scanning Electron Microscope (SEM) image analysis, sheet resistance measurements, and fabricating silicon solar cells using each paste. Solar cells with 15.6% efficiency were fabricated by nonvacuum processing on CZ-Si p-type wafers using developed aluminum pastes on the back side.

High-efficiency low-cost integral screen-printing multicrystalline silicon solar cells

2002 ◽  
Vol 74 (1-4) ◽  
pp. 155-163 ◽  
Author(s):  
J Szlufcik ◽  
F Duerinckx ◽  
J Horzel ◽  
E Van Kerschaver ◽  
H Dekkers ◽  
...  
Keyword(s):  
Solar Cells ◽  
Screen Printing ◽  
High Efficiency ◽  
Low Cost ◽  
Multicrystalline Silicon ◽  
Silicon Solar Cells

Rapid thermal processing and screen-printing for low cost silicon solar cells

1999 ◽  
Author(s):  
A. Rohatgi ◽  
S. Narasimha ◽  
P. Doshi ◽  
A. Ebong ◽  
J. Moschner
Keyword(s):  
Solar Cells ◽  
Thermal Processing ◽  
Screen Printing ◽  
Low Cost ◽  
Rapid Thermal Processing ◽  
Silicon Solar Cells

Fine Line Metallization of Silicon Solar Cells via Collimated Aerosol Beam Direct Write

2012 ◽  
Author(s):  
Jacob Fink ◽  
Justin M. Hoey ◽  
Douglas L. Schulz
Keyword(s):  
Renewable Energy ◽  
Solar Cells ◽  
Screen Printing ◽  
Collection Efficiency ◽  
Light Trapping ◽  
Current Collector ◽  
Industrial Processes ◽  
Experimental Comparison ◽  
Silicon Solar Cells ◽  
Direct Write

The global push for affordable sources of renewable energy has sparked rapid growth in photovoltaic research directed at improving the efficiency of the overall cells. Efficiency gains related to the optimization of the top metallization layer and current collector are largely limited by the minimum collector line width (∼100 μm) that can be printed using industrial processes such as screen printing. An alternative direct-write process termed Collimated Aerosol Beam Direct-Write (CAB-DW) is capable of depositing collector lines as thin as 15μm wide while still allowing heights up to 7 μm. In this paper we present data demonstrating improvements to efficiency of silicon solar cells with optimized grid designs along with a theoretical/experimental comparison confirming these results. Finally, results demonstrating collector grid induced light trapping possible with direct-written traces which reduces shadowing and further increases collection efficiency are presented.

scholarly journals High-throughput front and rear side metallization of silicon solar cells using rotary screen printing

2017 ◽  
Vol 124 ◽  
pp. 680-690 ◽  
Author(s):  
Andreas Lorenz ◽  
Anna Münzer ◽  
Martin Lehner ◽  
Roland Greutmann ◽  
Heinz Brocker ◽  
...  
Keyword(s):  
Solar Cells ◽  
High Throughput ◽  
Screen Printing ◽  
Silicon Solar Cells ◽  
Rear Side

Realization and evaluation of diffractive systems on the back side of silicon solar cells

2010 ◽  
Author(s):  
Pauline Berger ◽  
Hubert Hauser ◽  
Dominik Suwito ◽  
Stefan Janz ◽  
Marius Peters ◽  
...  
Keyword(s):  
Solar Cells ◽  
Silicon Solar Cells ◽  
Back Side
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