Synthesis and Stabilization of Colloidal Perovskite Nanocrystals by Multidentate Polymer Micelles,ACS Applied Materials & Interfaces

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Synthesis and Stabilization of Colloidal Perovskite Nanocrystals by Multidentate Polymer Micelles
ACS Applied Materials & Interfaces ( IF 8.3 ) Pub Date : 2017-05-19 00:00:00 , DOI: 10.1021/acsami.7b03445
Shaocong Hou ₁ , Yuzheng Guo _{1,

2,

3} , Yuguo Tang ₂ , Qimin Quan ₁

Affiliation

Lead halide perovskites have emerged as low-cost, high-performance optical and optoelectronic materials, however, their material stability has been a limiting factor for broad applications. Here, we demonstrate stable core–shell colloidal perovskite nanocrystals using a novel, facile and low-cost copolymer templated synthesis approach. The block copolymer serves as a confined nanoreactor during perovskite crystallization and passivates the perovskite surface by forming a multidentate capping shell, thus significantly improving its photostability in polar solvents. Meanwhile, the polymer nanoshell provides an additional layer for further surface modifications, paving the way to functional nanodevices that can be self-assembled or lithographically defined.

中文翻译：

多齿聚合物胶束的合成和稳定胶体钙钛矿纳米晶体

卤化钙钛矿已经成为低成本，高性能的光学和光电材料，但是，其材料稳定性已成为广泛应用的限制因素。在这里，我们使用一种新颖，简便且低成本的共聚物模板合成方法演示了稳定的核-壳胶态钙钛矿纳米晶体。该嵌段共聚物在钙钛矿结晶期间用作受限的纳米反应器，并通过形成多齿封端壳而使钙钛矿表面钝化，从而显着提高了其在极性溶剂中的光稳定性。同时，聚合物纳米壳提供了用于进一步表面改性的附加层，为可以自组装或光刻定义的功能性纳米器件铺平了道路。

更新日期：2017-05-26

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