Singlet fission and spin-flip emitters achieve quantum yield of 130%, break Shockley-Queisser 33% solar cell efficiency limit

https://www.eurekalert.org/news-releases/1120166

"high-energy blue light often loses excess energy as heat, overcome allowing 1 high-energy photon to generate 2 lower-energy exciton energy carriers... molybdenum-based metal complex flips its electron spin during light absorption capturing, extracting, emitting fission process' multiplied energy, with tuning of energy levels limiting exciton wastage... could eventually be applied not just to solar cells, but also to high-efficiency LEDs and next-generation quantum technologies"