Germany's University of Constance, Singapore's SERIS and the Georgia Tech Research Insitute in the U.S. are all using Schmid's APCVD solution in developing high efficiency PV cell concepts. Schmid claims that its Atmospheric Pressure Chemical Vapor Deposition (APCVD) process presents certain advantages, in that multiple injection heads in series allow for the source and cap layers to be applied in a single pass. The dopant sources can be harmonized, reports Schmid, allowing co-diffusion to occur in one high-temperature step.
Schmid says that its APCVD tool can achieve a throughput of 4,000 wafers per hour. The wafers are preheated before diffusion.
"Our APCVD systems are very sophisticated and have proven their value in the mass production of IBC [interdigitated back contact] solar cells," said Christian Buchner, the head of Schmid's solar segment. "Therefore, researchers will certainly find other ways to achieve high efficiency breakthrough cell concepts with this technology."
Schmid reports that more than 100 of its APCVD units are currently in use in mass production for the production of IBC cells.
The May edition of pv magazine, out on May 13, features an analytical article in which the performance and outlook of German PV production equipment suppliers is examined in detail.
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: firstname.lastname@example.org.
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.