Optical diffusion is an essential photon management process for various photoelectronic systems. This work proposes an approach to fabricate optical diffuser by interfacial hydrogen-bonding polymer complexation, which is performed on transparent substrates with layer-by-layer (LbL) assembly. The hierarchical microparticles formed by stepwise interfacial polymer complexation are strong light-scattering units that result in the effect of optical diffusion. Furthermore, one polymer is replaced by the dispersed polymer complex nanoparticles (CNP) for LbL assembly to fabricate the optical diffuser, and light diffusion performance is tremendously enhanced while the assembly time is significantly shortened. The optimized PVPON/CNP film shows outstanding performance among recent reports. Compared with commercially available optical diffuser for backlight unit of liquid crystal display under the same test protocol, PVPON/CNP film exhibits matchable haze value (H) with a much higher transmittance value (T) and light intensity utilization efficiency (E).

中文翻译：

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基于界面氢键聚合物络合的有效光学扩散器

光学扩散是各种光电子系统必不可少的光子管理过程。这项工作提出了一种通过界面氢键键合聚合物络合来制造光学扩散片的方法，该方法是在具有逐层（LbL）组装的透明基板上执行的。通过逐步界面聚合物络合形成的分层微粒是强光散射单元，可导致光扩散效果。此外，一种聚合物被用于LbL组装的分散的聚合物复合纳米粒子（CNP）取代，以制造光扩散器，光扩散性能大大提高，而组装时间却大大缩短。在最近的报道中，经过优化的PVPON / CNP膜表现出出色的性能。H）具有更高的透射率值（T）和光强度利用效率（E）。