Design and fabrication of nanolayered colorless polyimide/Si3N4 optical film

IF 2.2 4区工程技术 Q2 MECHANICS

Korea-Australia Rheology Journal Pub Date : 2025-01-10 DOI:10.1007/s13367-024-00113-1

Jae Seung Lee, Zheng Min Huang, Young Seok Song

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引用次数: 0

Abstract

In this study, low-reflective multilayer films (LRMFs) and high-reflective multilayer films (HRMFs) were designed and manufactured using colorless polyimide (CPI) as a low refractive index layer and Si₃N₄ as a high refractive index layer. A numerical simulation was conducted to design a nanolayered structure with different reflectivity characteristics at specific wavelengths. Rheological analysis was performed to determine a solution concentration needed for coating CPI at the nanoscale via the wet process. A layer of 89 nm was found to be formed stably using a 5wt% CPI solution at 5000 rpm. The results revealed that LRMFs exhibited less than 1% reflectivity at the central wavelength, while HRMFs showed more than 40% reflectivity at the central wavelength. Morphological analysis confirmed that the designed nanostructures were successfully fabricated. This research has provided a new way to fabricate optical film through the wet process.

Graphical abstract

Abstract Image

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纳米层无色聚酰亚胺/氮化硅光学薄膜的设计与制备

本研究以无色聚酰亚胺（CPI）为低折射率层，氮化硅（Si3N4）为高折射率层，设计并制备了低反射多层膜（LRMFs）和高反射多层膜（hrfs）。采用数值模拟的方法设计了具有不同波长反射特性的纳米层结构。通过流变学分析，确定了通过湿法在纳米尺度上涂层CPI所需的溶液浓度。在5wt%的CPI溶液中，在5000rpm下，可以稳定地形成89nm的层。结果表明，LRMFs在中心波长的反射率小于1%，而hrrmfs在中心波长的反射率大于40%。形貌分析证实了所设计的纳米结构是成功制备的。该研究为湿法制备光学薄膜提供了一条新的途径。图形抽象

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Korea-Australia Rheology Journal 工程技术-高分子科学

CiteScore

2.80

自引率

0.00%

发文量

审稿时长

>12 weeks

期刊介绍： The Korea-Australia Rheology Journal is devoted to fundamental and applied research with immediate or potential value in rheology, covering the science of the deformation and flow of materials. Emphases are placed on experimental and numerical advances in the areas of complex fluids. The journal offers insight into characterization and understanding of technologically important materials with a wide range of practical applications.