Cs₃Bi₂Br₉ quantum dots (QDs) with photoluminescence quantum yields (PLQYs) of up to 22% were prepared through the steady binding of octylammonium bromide and oleic acid. Excellent thermal stability and good luminescence properties have been achieved as intrinsic features of the inorganic halide perovskites, as well as the effective passivation of surface trap-states.

中文翻译：

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通过阴离子交换对高发光铯卤化铯铋钙钛矿量子点的形成†

通过稳定地结合溴化八溴化铵和油酸，制备了具有高达22％的光致发光量子产率（PLQYs）的Cs ₃ Bi ₂ Br ₉量子点（QDs）。作为无机卤化物钙钛矿的固有特征，以及表面陷阱态的有效钝化，已实现了出色的热稳定性和良好的发光性能。