Institute of Microscale Optoelectronics, Shenzhen University, Shenzhen, 518060, P. R. China.
Key Laboratory of Energy Conversion and Storage Technologies (Southern University of Science and Technology), Ministry of Education, Shenzhen, 518055, P. R. China.
Small. 2022 Jul;18(26):e2107629. doi: 10.1002/smll.202107629. Epub 2022 May 26.
Electrophoretic deposition (EPD) is a facile technique to deposit quantum dots (QDs) films, which can be used as the color conversion layers for display applications. To better understand the EPD process, researchers have built many models of the EPD process. However, most of these models lack solid experimental support. Here, by adopting simple yet effective solvent engineering and well-designed experiments, this study proves the Cordelair-Greil model on EPD processes. Moreover, some supplements about this model are made according to practical experiments. The experimental verification of the Cordelair-Greil model is a solid step toward revealing the dynamics of the EPD process. Furthermore, the formation of cracks in EPD deposited QD films is prevented through solvent engineering. This work proves that besides modifying the intrinsic properties of QDs, solvent engineering is also a simple, effective, and low-cost way to study the EPD process and improve the QD film qualities deposited.
电泳沉积（EPD）是一种将量子点（QD）薄膜沉积的简单技术，可作为显示应用的颜色转换层。为了更好地理解 EPD 过程，研究人员已经建立了许多 EPD 过程的模型。然而，这些模型大多缺乏坚实的实验支持。在这里，通过采用简单而有效的溶剂工程和精心设计的实验，本研究证明了 EPD 过程中的 Cordelair-Greil 模型。此外，根据实际实验对该模型进行了一些补充。Cordelair-Greil 模型的实验验证是揭示 EPD 过程动力学的坚实步骤。此外，通过溶剂工程防止了 EPD 沉积 QD 薄膜中的裂纹形成。这项工作证明，除了修饰 QD 的固有性质外，溶剂工程也是研究 EPD 过程和提高沉积的 QD 薄膜质量的一种简单、有效且低成本的方法。
