Chinese team operates perovskite solar farm submerged at 10 metres
A team from Yunnan University built and tested the first reported submarine solar farm, operating perovskite photovoltaic modules at 10 metres in the open sea and publishing results in Joule on September 11. The lead halide perovskites have a wide 1.96 eV band gap tuned to blue-green underwater light, and a PHMG additive improved stability; small cells reached 34.71 percent PCE and larger modules 29.40 percent under simulated 10 m light. Multilayer encapsulation preserved 99.58 percent of PCE after 1,000 hours, and field tests charged batteries (324–1,416 mWh) and lit an LED.
Perovskite modules charged batteries and lit an LED at 10 metres depth.
Context
Sunlight drops quickly under water and silicon cells perform poorly there. The researchers tuned perovskite cells to blue-green light and added encapsulation and PHMG for stability. Next steps could be longer field trials, deeper tests…
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