After over 30 years of development, colloidal quantum dots have now become mature luminescent materials in photonic and optoelectronic operations and start to hit the market. The emerging perovskite nanocrystals are expected to promote large‐scale commercialization due to their superior optical properties as well as low cost and easy fabrication. This progress report is focused on the developments of in situ fabricated perovskite nanocrystals with attractive features of excellent superior photoluminescence and electroluminescence performance, as well as the solution processability, easy integration, and scale‐up fabrication. These advantages make them suitable candidates as down‐shifting materials for photonics or emissive component for optoelectronics. Recently, the first television demons using composite films based on in situ fabricated perovskite nanocrystals were demonstrated at CES 2018 exhibition, and the performance of electroluminescence devices based on in situ fabricated perovskite nanocrystals is leading the study. It is believed that the in situ fabricated perovskite nanocrystrals will bring a revolution in the field of optical materials after further developments.

中文翻译：

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原位制备钙钛矿纳米晶体：光学材料的一场革命

经过30多年的发展，胶体量子点现已成为光子和光电操作中的成熟发光材料，并开始投放市场。新兴的钙钛矿纳米晶体由于其优越的光学性能以及低成本和易于制造的优点，有望促进大规模的商业化。该进展报告侧重于原位制备的钙钛矿纳米晶体的开发，该晶体具有引人注目的特征，即具有优异的优异的光致发光和电致发光性能，以及溶液的可加工性，易于集成和按比例放大的制造能力。这些优势使其成为光子学降档材料或光电子学发光元件的合适候选材料。最近，在CES 2018展览会上展示了首批使用基于原位制造的钙钛矿纳米晶体的复合膜的电视恶魔，而基于原位制造的钙钛矿纳米晶体的电致发光器件的性能正在引领该研究。据信，原位制造的钙钛矿纳米晶将在进一步发展之后，在光学材料领域带来一场革命。