- In the paper published in ACS Photonics, "Quantum Dot Luminescent Concentrator Cavity Exhibiting 30-fold Concentration," the team explains its process. Instead of using conventional solar cells that directly absorb sunlight and convert it to electricity, a new kind of solar cell called luminescent solar concentrators instead re-emit absorbed light at longer wavelengths, effectively concentrating the solar energy.
- Previously, the concentration factor for LSCs have been too inefficient to be used commercially. But this new breakthrough opens the possibility that future LSC devices can be even more efficient.
- "We've achieved a luminescent concentration ratio greater than 30 with an optical efficiency of 82-percent for blue photons, " Berkeley Lab director Paul Alivisatos said. "To the best of our knowledge, this is the highest luminescent concentration factor in literature to date." Read more at: http://phys.org/news/2015-09-solar-cell-absorbs-high-energy-fold.html#jCp
New Solar Cell Absorbs Blue Light At 30 Times the Rate of Conventional Solar Cells
9. 2. 15 by Kif Leswing