‘Silicon Module Super League (SMSL) leader JinkoSolar has achieved a record conversion efficiency of 24.2% for a large-area N-type TOPCon (Tunnel Oxide Passivated Contact) solar cell, verified by the Photovoltaic and Wind Power Systems Quality Test Center at the Chinese Academy of Sciences (CAS).
Back in 2013, Fraunhofer ISE had reported an N-type TOPCon solar cell with a 24% conversion efficiency.
To break the record, JinkoSolar used tunnel oxide passivating contact technology on a high quality N-type monocrystalline wafer with selective doping and advanced fine-line printing.
Fraunhofer ISE had previously noted that a key hurdle in reaching high efficiencies with n-Type wafer/cells was the patterning scheme of the rear contact as the rear side metal contacts are an efficiency limiting factor.
JinkoSolar said that its N-type ‘HOT’ technology was a key R&D milestone that opened up a new path towards developing high-efficiency commercial products that competed with HIT (Heterojunction with Intrinsic Thin-layer) and IBC (Interdigitated Back Contact) technologies.
JinkoSolar presents its tiling ribbon TR technology for the new high-end Tiger Pro series on June 8th, pressing ahead with plans to shift to a 500+ Wp range. As the first 580Wp utility solar panel, boasting an efficiency of 21.6%, Tiger PRO has been described as the world’s most powerful commercialised panel. Gain a comprehensive understanding of the Tiger PRO module series, with power generation of up to 580Wp. Learn about the premium technical features of the Tiger PRO series. Understand the impact of ultra-high efficiency modules on the LCOE of utility scale projects, including calculation of the yield benefit for different environmental conditions and installation types
The first ever event dedicated specifically to solar PV Heterojunction manufacturing and multi-GW production challenges and opportunities. Meet the global community driving Heterojunction to multi-GW status in mass production today in the spectacular setting of St. Petersburg in Russia.
Going into its fifth year over 200 delegates from 150 companies and 20 countries representing the PV supply chain will gather in Malaysia to discuss the technology roadmaps for PV cell advancement in GW markets. The scope of the event has been expanded this year, to cover developments in wafer supply and thin-film investments and technologies alongside all the regular benefits to all stakeholders tracking PV technology and investment trends for the next 5 years.