Solar cells fabricated using quantum-dot intermediate band semiconductors achieve up to 63% efficiency under maximum solar concentration

https://advanced.onlinelibrary.wiley.com/doi/10.1002/adom.202501521?af=R

"enables broad-spectrum photodetectors/ high-efficiency LEDs through superior carrier injection/ light emission... facilitates sub-bandgap photon absorption/emission for enhanced solar spectrum utilization/ manipulation... high-efficiency PV, broadband photodetection, wavelength-tunable LEDs... IB formation/ multi-exciton generation mechanism defects suppressed, overcoming existing bottlenecks in practical device implementation"

Related: Breaking the efficiency barrier: multi-stage solar system to harness the full spectrum
https://www.eurekalert.org/news-releases/1118643