In the present work, an improved hot injection technique, namely microwave-assisted hot injection, for mass production of Mn²⁺-doped CsPbCl₃ (Mn²⁺:CsPbCl₃) perovskite nanocrystals (NCs) was reported. This strategy combines the advantages of both microwave irradiation and hot injection, which represents characteristics such as homogeneous heating and rapid production of Mn²⁺:CsPbCl₃ NCs with a homogeneous size distribution. Meanwhile, it exhibits the capacity for gram-scale synthesis of Mn²⁺:CsPbCl₃ NCs. The Mn²⁺ doping concentrations can be facilely tailored by controlling the reaction temperatures and feed ratios of the MnCl₂ precursor, resulting in their enhanced optical properties with a PL QY up to 65%, which is the highest among the Mn²⁺-doped perovskite NCs ever reported. The as-constructed light emitting diodes (LEDs) based on Mn²⁺:CsPbCl₃ NCs emit highly bright white light, suggesting their potential applications in optoelectronic devices.

中文翻译：

---

大量生产具有高质量和增强光学性能的Mn ²⁺掺杂的CsPbCl ₃钙钛矿纳米晶体†

在当前的工作中，已经报道了一种改进的热注射技术，即微波辅助热注射，用于批量生产Mn ²⁺掺杂的CsPbCl ₃（Mn ²⁺：CsPbCl ₃）钙钛矿纳米晶体（NCs）。该策略结合了微波辐射和热注入的优点，这代表了诸如均匀加热和快速生产具有均匀尺寸分布的Mn ²⁺：CsPbCl ₃ NC的特性。同时，它具有克级合成Mn ²⁺：CsPbCl ₃ NCs的能力。Mn ²⁺可以通过控制MnCl ₂前体的反应温度和进料比来轻松地调整掺杂浓度，从而使它们的光学性能得到提高，PL QY高达65％，这是有报道的Mn ²⁺掺杂钙钛矿NC中最高的。 。基于Mn ²⁺：CsPbCl ₃ NC的结构化发光二极管（LED）发出高亮度的白光，表明它们在光电器件中的潜在应用。