According to the Shanghai Institute of Optics and Mechanics of the Chinese Academy of Sciences, recently, research teams from the National Key Laboratory of Super Laser Science and Technology at the Shanghai Institute of Optics and Precision Mechanics of the Chinese Academy of Sciences made a breakthrough in the field of broad-band halide perovskite gain media and high-performance violet and blue lasers. The study proposed a new preparation route for dynamic molecular conformational heterogeneity to drive halide ion exchange, overcome pain points such as uneven crystallization, high defects, phase separation, high threshold value, and poor stability of violet blue perovskite lasers over a long period of time, and achieved the best 423 nm violet halide perovskite laser performance output in the world.

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