Using design of experiment to obtain a systematic understanding of the effect of synthesis parameters on the properties of perovskite nanocrystals,Reaction Chemistry & Engineering

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Using design of experiment to obtain a systematic understanding of the effect of synthesis parameters on the properties of perovskite nanocrystals
Reaction Chemistry & Engineering ( IF 3.4 ) Pub Date : 2021-2-17 , DOI: 10.1039/d0re00149j
Robert W. Baker _{1,

2,

3,

4,

5} , Laura Forfar _{4,

6} , Xinxing Liang _{2,

3,

4,

5} , Petra J. Cameron _{1,

2,

3,

4,

5}

Affiliation

Lead halide perovskite nanocrystals have emerged as promising materials for optoelectronic applications. Their properties can be tuned by changing the synthesis conditions, but usually these conditions are studied in isolation rather than holistically. We report the use of design of experiment in the synthesis of MAPbI₃ nanocrystals. Eight factors were investigated in a broad screening study; we then focussed on five factors in a more refined screening study that targeted desired optoelectronic properties. An empirical model was developed and validated proving that five factors could be understood within a low number of experiments. By controlling the reactant solvent ratio, ligand concentration, ligand ratio, non-polar solvent polarizability, and purification solvent, the MAPbI₃ photoluminescence peak position could be tuned from 614 to 737 nm. The model has provided greater insight into the nanocrystal morphology and stability.

中文翻译：

使用实验设计获得对合成参数对钙钛矿纳米晶体性能影响的系统理解

卤化钙钛矿铅纳米晶体已经成为光电子应用的有前途的材料。可以通过改变合成条件来调节它们的性质，但是通常这些条件是单独研究而不是整体研究。我们报告了在合成MAPbI ₃纳米晶体中实验设计的使用。在广泛的筛选研究中研究了八个因素。然后，我们在针对目标所需光电特性的更精细的筛选研究中，将重点放在了五个因素上。开发并验证了一个经验模型，证明可以在少量实验中理解五个因素。通过控制反应物溶剂比，配体浓度，配体比，非极性溶剂的极化率和纯化溶剂，MAPbI ₃可以将光致发光峰位置从614 nm调整到737 nm。该模型为纳米晶体的形态和稳定性提供了更深入的了解。

更新日期：2021-02-23

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