Longi Announces World Record Holding Solar Cell With Nearly 30% Efficiency
Longi Green Energy Technology announced a new world record for silicon solar cell efficiency, achieving 28.13% with its hybrid interdigitated-back-contact solar cell. The result was independently verified by the Institute for Solar Energy Research Hamelin.
Longi Green Energy Technology has achieved a new world record for silicon solar cell efficiency with its hybrid interdigitated-back-contact solar cell, reaching 28.13% efficiency. This result was verified by the Institute for Solar Energy Research Hamelin. The company's HIBC-based solar modules have also been certified by the National Renewable Energy Laboratory with 26.4% efficiency. Longi's HIBC cell design combines passivated tunneling contacts and dielectric passivation layers. The company has made several manufacturing improvements, including reducing phosphorus doping and using a pulsed green nanosecond laser to crystallize the amorphous silicon layer. Longi said the technology could be scaled for heterojunction solar cell manufacturing, but further improvements are needed to reduce resistive losses.
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