Continuous wave pumped single-mode nanolasers in inorganic perovskites with robust stability and high quantum yield

A one-step and surfactant-free method is proposed to synthesize inorganic perovskite (CsPbX₃, X = Cl, Br, I) nanowires at room temperature. The as-prepared CsPbX₃ nanowires exhibit high lasing quantum yield, single-mode lasing with ultra-narrow linewidth.