China’s DAS Solar says it has achieved a world record open-circuit voltage of 730 mV for an n-type solar cell based on tunnel oxide passivated contact (TOPCon) cell technology, with a power conversion efficiency of 26.24%, according to the Chinese Academy of Sciences Institute of Electrical Engineering.
The cell is based on TOPCon cell technology and has an area of 333.05 cm2. The previous world record of 724.9mV had been reported by the Fraunhofer Institute for Solar Energy Systems in Germany.
“The achievement of an open-circuit voltage as high as 730mV for DAS Solar's TOPCon cells indicates a significant breakthrough in the development of passivation technologies, which holds great significance for the continuous improvement of TOPCon cell efficiency,” said Das Solar CTO Song Dengyuan.
“DAS Solar has successfully developed a new type of emitter layer surface passivation technology, called mt-Pass, which upgrades its N-type technology to TOPCon3.0 plus,” Das Solar said in an additional statement. “This mt-Pass technology significantly reduces the emitter's recombination current, which brings the passivation effect close to the backside SiO2/PolySi passivation technology.”
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: email@example.com.
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.