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Transparent oxygen and water vapor barriers for flexible electronics using semi-crystalline polymer matrix thin films.

机译：使用半结晶聚合物基质薄膜的柔性电子产品的透明氧气和水蒸气阻隔层。

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摘要

Electronic components such as organic light emitting diodes (OLED) and photo-voltaics have been of more focus with the advancement of technology. These electronics are susceptible to degradable in the presence of gases such as water vapor and oxygen. Being that these gases are constituents of the atmosphere and can be found in nearly every environment, certain protocols must take place to mitigate the issues that occur. New generation electronics are sensitive to oxidation and corrosion in the presence of extremely low concentrations of moisture and oxygen and therefore the development and improvements of gas barriers are vital for advancements in electronics technology. The improvements of appliances such as flexible solar cells and OLEDs require barriers that need to be flexible in order to achieve high longevity. The area of research has been focused on designing flexible polymer films with composite nanoparticles and cross-linking agents that have low permeability to moisture and oxygen gas. The polymers studied are in the family of methacrylates. Due to the properties of methacrylate polymers, it has been proposed that they are capable of having efficient barrier properties due to their ability to cross link and form crystalline structures with low chain mobility. The change in intensities of the FTIR peaks of different functional groups indicates the cross-linking and crystallinity of the polymer films. The UV-Vis data indicates high transparency of the films. SEM images of the films show continuous and well cured surfaces with minimal deviations, pores and defects. The addition of cross-linking agents and nanoparticles increased polymerization and cross-linking of the methacrylate polymer chains, therefore increasing inter-chain density and long range order. The incorporation of these additives increased the crystallinity of the films and by decreasing the distances and number of voids between polymer chains along with having minimal sorption sites for gases to bond to, the ability of gases such as moisture and oxygen to penetrate through the films has decreased.
机译：随着技术的进步，诸如有机发光二极管（OLED）和光伏电子器件已成为人们关注的焦点。这些电子设备在存在诸如水蒸气和氧气的气体时易于降解。由于这些气体是大气的组成部分，几乎可以在每种环境中发现，因此必须采取某些措施来减轻发生的问题。在水分和氧气浓度极低的情况下，新一代电子产品对氧化和腐蚀很敏感，因此气体阻隔层的开发和改进对于电子技术的发展至关重要。诸如柔性太阳能电池和OLED之类的设备的改进需要障碍物，该障碍物必须是柔性的以实现高寿命。研究领域一直集中在设计具有复合纳米颗粒和交联剂的柔性聚合物薄膜，这些薄膜对湿气和氧气的渗透性低。研究的聚合物属于甲基丙烯酸酯系列。由于甲基丙烯酸酯聚合物的性质，已经提出它们由于具有交联和形成具有低链迁移率的晶体结构的能力而能够具有有效的阻隔性能。不同官能团的FTIR峰的强度变化表明聚合物膜的交联和结晶度。 UV-Vis数据表明膜的高透明性。薄膜的SEM图像显示连续且固化良好的表面，偏差，孔和缺陷最小。交联剂和纳米颗粒的添加增加了甲基丙烯酸酯聚合物链的聚合和交联，因此增加了链间密度和长程有序。掺入这些添加剂可提高薄膜的结晶度，并通过减少聚合物链之间的距离和空隙数量以及最小的气体吸附位点来使气体（如湿气和氧气）渗透薄膜的能力得以提高。减少。

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  • 作者

    Sehgal, Akhil.;

  • 作者单位

    State University of New York at Binghamton.;

  • 授予单位 State University of New York at Binghamton.;
  • 学科 Engineering Chemical.;Engineering Materials Science.
  • 学位 M.S.
  • 年度 2013
  • 页码 108 p.
  • 总页数 108
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 水产、渔业;
  • 关键词

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