Rocket Lab Introduces Germanium-Free IMM Apex Solar Cell for Satellites
Rocket Lab shares rose after the company unveiled IMM Apex, a germanium-free solar cell for satellite power. The technology removes the need for germanium substrates in multi-junction designs, aiming to cut cell mass by 40% and deliver 31.5% Beginning of Life conversion efficiency. It is positioned as a drop-in replacement, backed by 10+ years of testing and multi-100-kilowatt manufacturing plans, following use on 1,100+ satellites.