ThomasNet News Logo
Sign Up | Log In | ThomasNet Home | Promote Your Business

DEK Solar Technology a Key Contribution in New PERC Cell Efficiency Record of 21.2%

Print | 
Email |  Comment   Share  

DEK Solar Technology a Key Contribution in New PERC Cell Efficiency Record of 21.2%
DEK Solar Technology a Key Contribution in New PERC Cell Efficiency Record of 21.2%
Click Here to Enlarge Picture

1785 Winnetka Circle
Rolling Meadows, IL, 60006

Press release date: May 12, 2014

DEK Solar and the Institute for Solar Energy Research Hamelin (ISFH) have worked in partnership to increase industrial silicon solar cells' (in this case, Passivated Emitter and Rear Cell, or PERC) conversion efficiency to a record 21.2% using screen-printed metal contacts on the cell rear side and a screen/stencil dual print process on the cell front side.  Typically, screen-printed solar cell efficiency ranges from 17.5% to 19.5%, but this latest development sets a new world record for PERC cell conversion efficiency using a screen and stencil printing metallization technique.

Several DEK Solar technologies including the high-accuracy Eclipse metallization platform, Fine Line Stencils™ and precision screens contributed to achieving the record-breaking 21.2% efficiency. The cells' front side was metallized with a Heraeus optimized silver paste using a dual print process that leveraged DEK Solar's precision screens to metallize a five busbar design and the company's Fine Line Stencils to print the 46 µm fingers.  DEK Solar Fine Line Stencils enable superb uniformity and high aspect ratios for exceptionally flat and uniform lines, and are capable of printing extremely thin, sub-40 µm lines.   Precise control over the relative print height of the busbars and the fine lines not only reduces shadowing loss and silver cost, but also allows non-contacting busbar paste to increase open circuit voltage (Voc) and raise efficiency.  The rear metal contacts were printed with DuPont aluminum rear contact paste. 

"The significance of this achievement should not be underestimated," explains Tom Falcon, DEK Solar Principal Engineer.  "ISFH's and DEK Solar's work have effectively delivered what the solar market is after:  high-efficiency, industrial-type, silicon PERC cells produced using the most cost-effective, metallization process via screen and stencil printing.  This is, indeed, a breakthrough for the global solar industry."

Dr. Thorsten Dullweber, head of the ISFH research group Solar Cell Production Processes, also notes the importance of this efficiency increase and DEK Solar's contributions:  "Improving the efficiency by such a significant amount is no small feat – particularly when one considers that this was carried out using screen and stencil printing methods with an exceptionally small silver paste consumption below 80 mg per wafer.  DEK Solar has been and continues to be a very important partner for ISFH, providing not only advanced platforms, stencils and screens, but immense process knowledge as well."

For more information, visit or send an e-mail to

Acknowledgement:  As part of ISFH's HighScreen research project, the 21.2% world-record efficiency work was funded by the German Federal Ministry of the Environment and in collaboration with ISFH project partners SolarWorld AG, Heraeus Precious Metals GmbH & Co. KG, RENA GmbH and SINGULUS TECHNOLOGIES AG.  DEK Solar and DuPont Ltd. were key contributors.

About DEK Solar
DEK Solar is a global provider of next-generation technologies and process support to solar cell manufacturers with solutions that include modular metallization platforms, precision screens and materials applications used in backside field coating, current-collector pattern and termination deposition for photovoltaic substrate production. For more information, visit DEK Solar at

Company Contact:     
Tracey Khoo      
mobile: +65 9837 0338   

Print | 
Email |  Comment   Share  
Contacts: View detailed contact information.


Post a comment about this story

(your e-mail address will not be posted)
Comment title:
To submit comment, enter the security code shown below and press 'Post Comment'.

 See related product stories
More .....
 Visit Green and Clean Blog
  Latest from the Green and Clean Blog
 See more product news in:
Computer Hardware and Peripherals
Printing and Duplicating Equipment
Green & Clean
 More New Product News from this company:
Automatic Paste Dispenser optimizes process control.
Automatic Paste Dispenser minimizes operator intervention.
Fine Line Stencil helps maximize solar cell efficiency.
Interchangeable Stencil offers consistent tension over time.
Closed Loop Process Control proactively prevents PCB defects.
More ....
| Featured Manufacturing Jobs
 Other News from this company:
DEK Signs New VectorGuard® License Agreement with Sunshine Laser
DEK Solar's Apollo Metallization Platform Wins Gigawatt Gold Award at SNEC
Nice Sun PV Co., Ltd. Purchases Multiple DEK Solar Apollo Systems on Day One of SNEC
DEK Solar to Debut New Metallization Technologies at SNEC 2014
More ....
 Tools for you
Watch Company 
View Company Profile
Company web site
More news from this company
E-mail this story to a friend
Save Story
Search for suppliers of
Screen Printing Equipment & Supplies
Stencil Printers
Solar Cell Metallization
Join the forum discussion at:
Tools of the Trade

Home  |  My ThomasNet News®  |  Industry Market Trends®  |  Submit Release  |  Advertise  |  Contact News  |  About Us
Brought to you by        Browse ThomasNet Directory

Copyright © 2014 Thomas Publishing Company. All Rights Reserved.
Terms of Use - Privacy Policy

Error close

Please enter a valid email address