Suniva achieves 19 percent screen printed cell efficiency


The U.S. manufacturer explains it achieved this high efficiency using a uniform single-sided emitter, in addition to "other proprietary innovations" on the front side of its solar cell. It goes on to say it is the first company to successfully leverage ion implantation as an enabling technology in the mass production of solar cells. It worked in collaboration with Varian Semiconductor Equipment Associates, to introduce the ion implantation.

The company says it is now integrating its 19 percent efficient cells across its module line. Consequently, its module level efficiencies are reportedly reaching upwards of 16 percent.

"Combined with Suniva’s innovative R&D and proprietary processes, ion implantation provides us with a very cost-effective way to manufacture solar cells of 19 percent efficiency, without adding complex processes for a selective emitter. We do have the capability to use a selective emitter, but we have not yet chosen to do so," said Ajeet Rohatgi, Suniva founder and CTO.

Bruce McPherson, vice president of research and development added: "Leveraging ion implantation in solar cell processing has traditionally proven too costly and slow. Combined with Suniva’s deep research and our own proprietary design, recipes and processes, we have unlocked the value of the ion implanter as an enabling technology for solar cell processing. The result is an immediate, one percent efficiency gain in ARTisun Select, and an ongoing reduction in our cell conversion costs."

The company says it has previously achieved certified efficiencies of more than 20 percent on its screen-printed cells in the lab.

McPherson continues: "We are quite confident that this is just the first step in a multi-step process, which will take Suniva well into the 20 percent category of efficiencies, while still maintaining low cost screen printed manufacturing processes. Through continued innovation, optimization and modification of cell design and manufacturing processes, and by leveraging both our unique R&D relationship with the University Center of Excellence in Photovoltaics (UCEP) and strategic 3rd party technology collaborations, such as Varian, Suniva will continue to lead the market in efficiencies so far unattained in low-cost solar cell manufacturing."

Popular content

This content is protected by copyright and may not be reused. If you want to cooperate with us and would like to reuse some of our content, please contact:


Related content

Elsewhere on pv magazine...

Leave a Reply

Please be mindful of our community standards.

Your email address will not be published. Required fields are marked *

By submitting this form you agree to pv magazine using your data for the purposes of publishing your comment.

Your personal data will only be disclosed or otherwise transmitted to third parties for the purposes of spam filtering or if this is necessary for technical maintenance of the website. Any other transfer to third parties will not take place unless this is justified on the basis of applicable data protection regulations or if pv magazine is legally obliged to do so.

You may revoke this consent at any time with effect for the future, in which case your personal data will be deleted immediately. Otherwise, your data will be deleted if pv magazine has processed your request or the purpose of data storage is fulfilled.

Further information on data privacy can be found in our Data Protection Policy.