材料科学
纳米技术
光刻胶
微电子
荧光
纳米
表面改性
聚合物
表征(材料科学)
流体学
聚合
生物分子
微加工
制作
化学工程
复合材料
光学
物理
医学
替代医学
工程类
图层(电子)
病理
航空航天工程
作者
Hani Barhum,Denis S. Kolchanov,Mohammed Attrash,Razan Unis,Jānis Alnis,Toms Salgals,Yehia A. Ibrahim,Pavel Ginzburg
出处
期刊:Nanoscale
[The Royal Society of Chemistry]
日期:2023-01-01
摘要
The SU8 polymer is a negative photoresist widely used to produce high-quality coatings, with controllable thicknesses ranging from nanometers to millimeters, depending on fabrication protocols. Apart from conventional use cases in microelectronics and fluidics, SU8 is quite an attractive platform in nanophotonics. This material, being straightforwardly processed by ultraviolet lithography, is transparent to wavelengths longer than 500 nm. However, introducing fluorescent agents within the SU8 matrix remains a challenge owing to its high hydrophobicity. Here, we develop a process, where colorful quantum dots co-participate in the polymerization process by epoxide amination and become a part of a new fluorescent material - SU8-phenylenediamine. Through comprehensive characterization methods, including XPS and 1H-NMR analyses, we demonstrate that m-PD covalently binds to SU8 epoxy sites with its molecular amine, virtually forming a new material and not just a mixture of two compounds. After characterizing the new strongly fluorescent platform, thin 300 nm films were created on several surfaces, including a conformal coverage of a nanofluidic capillary. This new process provides opportunities to incorporate various functional molecules into optoelectronic devices without the need for multistep deposition and surface functionalization.
科研通智能强力驱动
Strongly Powered by AbleSci AI