New configuration gives perovskite cells 18% efficiency

Cesium lead black perovskites could be interesting for solar cell development if their crystals are observed in their less efficient but more stable beta phase. The efficiency shortfall can be solved by healing emerging cracks in the surface of the cell using a choline iodide solution, according to an international team of scientists.An international team of scientists claim to have developed perovskite solar cells with an efficiency of 18.1% by using a new configuration of cesium lead iodide perovskite CsPbI3, which has the narrowest band gap - 1.73 eV - of all inorganic lead halide perovskites. ...

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