Waterproof Light‐Emitting Metal Halide Perovskite–Polymer Composite Microparticles Prepared via Microfluidic Device,Particle & Particle Systems Characterization

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Waterproof Light‐Emitting Metal Halide Perovskite–Polymer Composite Microparticles Prepared via Microfluidic Device
Particle & Particle Systems Characterization ( IF 2.7 ) Pub Date : 2021-03-07 , DOI: 10.1002/ppsc.202100006
Kyung Hak Kim ₁ , Jin Kyoung Park ₂ , Sang Hyuk Im ₂ , Bum Jun Park ₁

Affiliation

Waterproof light‐emitting perovskite–polymer composite microparticles are synthesized by a continuous one‐step microfluidic reactor, which enables in situ production of metal halide perovskite nanoparticles (MHP‐NPs) by the ligand‐assisted reprecipitation process (LARP) and the encapsulation of MHP‐NPs by UV cross‐linking polymerization in the microfluidic channel. Successful encapsulation of MHP‐NPs in polymer microparticles is attributed to the co‐dispersion of an LARP solution and UV polymerizable solution in an aqueous continuous phase within the microfluidic channel, in which N,N‐dimethylformamide, in co‐dispersion droplets, is continuously extracted to the aqueous medium upon UV polymerization. MHP‐NPs–polymer composite microparticles show enhanced stability against air and moisture.

中文翻译：

通过微流控装置制备的防水发光金属卤化物钙钛矿-聚合物复合微粒

防水发光的钙钛矿-聚合物复合微粒是通过连续的一步微流体反应器合成的，该反应器能够通过配体辅助的再沉淀过程（LARP）原位生产金属卤化物钙钛矿纳米颗粒（MHP-NPs）并封装MHP通过微流体通道中的UV交联聚合得到的NPs。MHP-NPs在聚合物微粒中的成功封装归因于LARP溶液和UV可聚合溶液在微流体通道内的水性连续相中的共分散，其中N，N共分散液滴中的二甲基甲酰胺会在UV聚合作用下连续萃取到水性介质中。MHP-NPs-聚合物复合微粒对空气和湿气显示出增强的稳定性。

更新日期：2021-04-19

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