Abstract

Due to noticeable composition stability, remarkable photoelectric sensitivity in the visible spectral range, excellent pyroelectric and ferroelectric properties, and high resistivity, red lead (Pb₃O₄) coatings are widely utilized in various optoelectronic structures and devices. In this work, using ethanol as solvent and nitric acid or polyethyleneimine (PEI) as surface charge modifier, pure nano-Pb₃O₄ coating was successfully prepared by electrophoretic deposition (EPD) methods. Especially, the suitable service cases for both PEI and nitric acid were investigated in detail. For EPD of nano-Pb₃O₄ at low solid loading (e.g., 1 g·L⁻¹), employing nitric acid can realize a higher deposition rate than employing PEI. In contrast, for EPD of nano-Pb₃O₄ at high solid loading (e.g., 10 or 20 g·L⁻¹), PEI is more suitable than nitric acid. This study can lead to advances in assembling Pb₃O₄ coating for the applications such as advanced optical data carriers and elements of photon technologies and radioelectronics.

中文翻译：

---

固含量对纳米Pb 3 O 4涂层电泳沉积动力学的影响

摘要

由于明显的成分稳定性，在可见光谱范围内出色的光电灵敏度，出色的热电和铁电特性以及高电阻率，红铅（Pb ₃ O ₄）涂层被广泛用于各种光电结构和器件中。在这项工作中，使用乙醇作为溶剂，硝酸或聚乙烯亚胺（PEI）作为表面电荷改性剂，通过电泳沉积（EPD）方法成功制备了纯纳米Pb ₃ O ₄涂层。特别是，详细研究了适用于PEI和硝酸的适用案例。对于低固含量（例如1 g·L ^-1）的纳米Pb ₃ O _4的EPD），使用硝酸比使用PEI可以实现更高的沉积速率。相反，对于高固含量（例如10或20g·L ^-1）下的纳米Pb ₃ O _4的EPD ，PEI比硝酸更合适。这项研究可以导致为诸如高级光学数据载体以及光子技术和无线电电子元件等应用组装Pb ₃ O ₄涂层方面的进展。