Researchers identify and clear efficiency hurdle for organic solar cells

https://www.cam.ac.uk/research/news/researchers-identify-and-clear-efficiency-hurdle-for-organic-solar-cells

"identified a loss pathway...In addition, they identified a way to suppress this pathway by manipulating molecules inside the solar cell to prevent the loss of electrical current through an undesirable state, known as a triplet exciton... ilicon-based solar cell can reach efficiencies as high as 20 to 25%, while organic solar cells... real-world efficiencies of about 10 to 12%... clear strategy to achieve organic solar cells with efficiencies of 20% or more"