Aromatic Amino Acid-Mediated Perovskite Nanocrystals: Fluorescence Tuning and Morphological Evolution,Inorganic Chemistry

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Aromatic Amino Acid-Mediated Perovskite Nanocrystals: Fluorescence Tuning and Morphological Evolution
Inorganic Chemistry ( IF 4.3 ) Pub Date : 2022-06-23 , DOI: 10.1021/acs.inorgchem.2c01021
Sukanya Ghosh ₁ , Prasenjit Kar ₁

Affiliation

Lead halide perovskites with high fluorescent and tunable morphology appeared at the forefront of materials chemistry because of their corresponding impressive optoelectronic properties. The current advancement of metal halide perovskites put forward the functional and bidentate ligand to expand their utilization in modified ligand chemistry. We successfully introduced nontoxic aromatic amino acid as a capping ligand to synthesize the perovskite nanocrystals (PNCs). The implementation of aromatic amino acid for the construction of CsPbX₃ nanocrystals (NCs) provides the synergetic service of the carboxylic and amine groups with the phenyl residue, which prompts the formation of NCs with high fluorescence intensity. The experimental results demonstrate the emissive property of PNCs in a whole visible region with long-term stability. Additionally, the morphology of the NCs has been tuned. We performed several characterization techniques to investigate the nature of the NCs in the solid and solution phases.

中文翻译：

芳香族氨基酸介导的钙钛矿纳米晶体：荧光调谐和形态演化

具有高荧光和可调谐形态的卤化铅钙钛矿因其相应的令人印象深刻的光电特性而出现在材料化学的前沿。金属卤化物钙钛矿的当前进展提出了功能性和二齿配体，以扩大其在改性配体化学中的应用。我们成功地引入了无毒芳香族氨基酸作为封端配体来合成钙钛矿纳米晶体（PNCs）。芳香族氨基酸构建CsPbX _3的实施纳米晶体 (NCs) 提供了羧基和胺基与苯基残基的协同作用，这促进了具有高荧光强度的 NCs 的形成。实验结果证明了PNCs在整个可见光区域内具有长期稳定性的发射特性。此外，已经调整了 NC 的形态。我们进行了几种表征技术来研究固相和溶液相中 NC 的性质。

更新日期：2022-06-23

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